GE Critical Power UDT020A0X SERIES 20 Amp POL DC-DC Converter Data Sheet GE Energy Measures: 0.80 x 0.45 x 0.33” TM 20A Digital MicroDLynx : Non-Isolated DC-DC Power Modules 3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 20A Output Current Features  Compliant to RoHS II EU “Directive 2011/65/EU”  Compatible in a Pb-free or SnPb reflow environment (Z versions)  Compliant to IPC-9592 (September 2008), Category 2, Class II  DOSA based  Wide Input voltage range (3Vdc-14.4Vdc)  Output voltage programmable from 0.45Vdc to 5.5Vdc via TM # external resistor and PMBus TM #  Digital interface through the PMBus protocol TM  Tunable Loop to optimize dynamic output voltage response  Flexible output voltage sequencing EZ-SEQUENCE  Power Good signal RoHS Compliant  Fixed switching frequency with capability of external synchronization Applications  Output over current protection (non-latching)  Distributed power architectures  Over temperature protection  Intermediate bus voltage applications  Remote On/Off  Telecommunications equipment  Ability to sink and source current  Cost efficient open frame design  Servers and storage applications  Small size: 20.32 mm x 11.43 mm x 8.5 mm (0.8 in x  Networking equipment 0.45 in x 0.334 in)  Industrial equipment  Wide operating temperature range [-40°C to 85°C] Vin+ Vout+ nd † VIN VOUT  UL* 60950-1 2 Ed. Recognized, CSA C22.2 No. 60950-1-07 VS+ ‡ nd Certified, and VDE (EN60950-1 2 Ed.) Licensed PGOOD RTUNE MODULE  ISO** 9001 and ISO 14001 certified manufacturing facilities SEQ CTUNE CLK Cin TRIM Co DATA ADDR0 SMBALRT# RTrim ADDR1 ON/OFF RADDR1 RADDR0 SIG_GND SYNC GND VS- GND Description TM The 20A Digital MicroDLynx power modules are non-isolated dc-dc converters that can deliver up to 20A of output current. These modules operate over a wide range of input voltage (V = 3Vdc-14.4Vdc) and provide a precisely regulated output voltage IN TM from 0.6Vdc to 5.5Vdc, programmable via an external resistor and PMBus control. Features include a digital interface using the TM TM # PMBus protocol, remote On/Off, adjustable output voltage, over current and over temperature protection. The PMBus TM interface supports a range of commands to both control and monitor the module. The module also includes the Tunable Loop feature that allows the user to optimize the dynamic response of the converter to match the load with reduced amount of output capacitance leading to savings on cost and PWB area. * UL is a registered trademark of Underwriters Laboratories, Inc. † CSA is a registered trademark of Canadian Standards Association. ‡ VDE is a trademark of Verband Deutscher Elektrotechniker e.V. ** ISO is a registered trademark of the International Organization of Standards # The PMBus name and logo are registered trademarks of the System Management Interface Forum (SMIF) Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensure a product will work properly and reliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/ge-energy-UDT020A0X-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om September 24, 2014 ©2014 General Electric Company. All rights reserved. Data Sheet GE GE Critical Power UDT020A0X SERIES TM 20A Digital MicroDLynx : Non-Isolated DC-DC Power Modules 20 Amp POL DC-DC Converter 3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 20A Output Current Measures: 0.80 x 0.45 x 0.33” Absolute Maximum Ratings Stresses in excess of the absolute maximum ratings can cause permanent damage to the device. These are absolute stress ratings only, functional operation of the device is not implied at these or any other conditions in excess of those given in the operations sections of the data sheet. Exposure to absolute maximum ratings for extended periods can adversely affect the device reliability. Parameter Device Symbol Min Max Unit Input Voltage All VIN -0.3 15 V Continuous SEQ, SYNC, VS+ All 7 V CLK, DATA, SMBALERT# All 3.6 V Operating Ambient Temperature All T -40 105 °C A (see Thermal Considerations section) Storage Temperature All Tstg -55 125 °C Electrical Specifications Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. Parameter Device Symbol Min Typ Max Unit Operating Input Voltage All VIN 3 ⎯ 14.4 Vdc Maximum Input Current All I 19 Adc IN,max (VIN=3V to 14V, IO=IO, max ) V = O,set IIN,No load 69 mA Input No Load Current 0.6 Vdc (V = 12Vdc, I = 0, module enabled) V = IN O O,set IIN,No load 134 mA 5Vdc Input Stand-by Current All IIN,stand-by 16.4 mA (V = 12Vdc, module disabled) IN 2 2 Inrush Transient All It 1 A s Input Reflected Ripple Current, peak-to-peak (5Hz to 20MHz, 1μH source impedance; VIN =0 to 14V, IO= IOmax ; All 50 mAp-p See Test Configurations) Input Ripple Rejection (120Hz) All -64 dB September 24, 2014 ©2014 General Electric Company. All rights reserved. Page 2 Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensure a product will work properly and reliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/ge-energy-UDT020A0X-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om Data Sheet GE GE Critical Power UDT020A0X SERIES TM 20A Digital MicroDLynx : Non-Isolated DC-DC Power Modules 20 Amp POL DC-DC Converter 3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 20A Output Current Measures: 0.80 x 0.45 x 0.33” Electrical Specifications (continued) Symbo Parameter Device Min Typ Max Unit l Output Voltage Set-point (with 0.1% tolerance for external All V -1.0 +1.0 % V O, set O, set resistor used to set output voltage) Output Voltage (Over all operating input voltage, resistive All V -3.0 ⎯ +3.0 % V O, set O, set load, and temperature conditions until end of life) Adjustment Range (selected by an external resistor) (Some output voltages may not be possible depending on All VO 0.6 5.5 Vdc the input voltage – see Feature Descriptions Section) PMBus Adjustable Output Voltage Range All VO,adj -25 0 +25 %VO,set PMBus Output Voltage Adjustment Step Size All 0.4 %V O,set Remote Sense Range All 0.5 Vdc Output Regulation (for VO ≥ 2.5Vdc) Line (VIN=VIN, min to VIN, max) All ± 0.17 ± 0.27 ±0.4 % VO, set Load (IO=IO, min to IO, max) All ⎯ 10 mV Output Regulation (for VO < 2.5Vdc) Line (V =V to V) All 5 mV IN IN, min IN, max ⎯ Load (I =I to I) All 10 mV O O, min O, max ⎯ Temperature (T =T to T) All 0.4 % V ref A, min A, max ⎯ O, set Output Ripple and Noise on nominal output (V =V and I =I to I Co = 0.1μF // 22 μF IN IN, nom O O, min O, max ceramic capacitors) Peak-to-Peak (5Hz to 20MHz bandwidth) All ⎯ 50 100 mV pk-pk RMS (5Hz to 20MHz bandwidth) All 20 38 mVrms 1 External Capacitance TM Without the Tunable Loop ESR ≥ 1 mΩ All C 2x47 2x47 μF O, max ⎯ TM With the Tunable Loop ESR ≥ 0.15 mΩ All CO, max 2x47 ⎯ 1000 μF ESR ≥ 10 mΩ All CO, max 2x47 ⎯ 10000 μF Output Current (in either sink or source mode) All I 0 20 Adc o Output Current Limit Inception (Hiccup Mode) All IO, lim 110 130 150 % Io,max (current limit does not operate in sink mode) Output Short-Circuit Current All IO, s/c 1.4 2.5 3.6 Arms (VO≤250mV) ( Hiccup Mode ) Efficiency VO,set = 0.6Vdc η 76.0 79.1 % VIN= 12Vdc, TA=25°C VO, set = 1.2Vdc η 84.3 87.1 % IO=IO, max , VO= VO,set VO,set = 1.8Vdc η 87.2 90.4 % VO,set = 2.5Vdc η 90.3 92.6 % VO,set = 3.3Vdc η 91.4 93.8 % V = 5.0Vdc η 92.8 95.2 % O,set Switching Frequency All fsw 475 500 525 kHz 1 TM External capacitors may require using the new Tunable Loop feature to ensure that the module is stable as well as getting the best TM transient response. See the Tunable Loop section for details. September 24, 2014 ©2014 General Electric Company. All rights reserved. Page 3 Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensure a product will work properly and reliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/ge-energy-UDT020A0X-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om Data Sheet GE GE Critical Power UDT020A0X SERIES TM 20A Digital MicroDLynx : Non-Isolated DC-DC Power Modules 20 Amp POL DC-DC Converter 3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 20A Output Current Measures: 0.80 x 0.45 x 0.33” Electrical Specifications (continued) Parameter Device Symbol Min Typ Max Unit Frequency Synchronization All Synchronization Frequency Range All 425 600 kHz High-Level Input Voltage All V 2.0 V IH Low-Level Input Voltage All V 0.4 V IL Input Current, SYNC All I 100 nA SYNC Minimum Pulse Width, SYNC All tSYNC 100 ns Maximum SYNC rise time All tSYNC_SH 100 ns General Specifications Parameter Device Min Typ Max Unit Calculated MTBF (IO=0.8IO, max, TA=40°C) Telecordia Issue 2 All 15,455,614 Hours Method 1 Case 3 4.086 4.54 4.994 Weight g (oz.) (0.14) (0.16) (0.18) Feature Specifications Unless otherwise indicated, specifications apply overall operating input voltage, resistive load, and temperature conditions. See Feature Descriptions for additional information. Parameter Device Symbol Min Typ Max Unit On/Off Signal Interface (VIN=VIN, min to VIN, max ; open collector or equivalent, Signal referenced to GND) Device code with suffix “4” – Positive Logic (See Ordering Information) Logic High (Module ON) Input High Current All IIH 1 mA ⎯ Input High Voltage All VIH 2 V V ⎯ IN,max Logic Low (Module OFF) Input Low Current All IIL ⎯ ⎯ 1 mA Input Low Voltage All VIL -0.2 ⎯ 0.6 V Device Code with no suffix – Negative Logic (See Ordering Information) (On/OFF pin is open collector/drain logic input with external pull-up resistor; signal referenced to GND) Logic High (Module OFF) Input High Current All IIH — — 1 mA Input High Voltage All VIH 2 — VIN, max Vdc Logic Low (Module ON) Input low Current All IIL — — 10 μA Input Low Voltage All VIL -0.2 — 0.6 Vdc Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensure a product will work properly and reliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/ge-energy-UDT020A0X-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om Data Sheet GE GE Critical Power UDT020A0X SERIES TM 20A Digital MicroDLynx : Non-Isolated DC-DC Power Modules 20 Amp POL DC-DC Converter 3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 20A Output Current Measures: 0.80 x 0.45 x 0.33” Feature Specifications (cont.) Parameter Device Symbol Min Typ Max Units Turn-On Delay and Rise Times (V =V , I =I V to within ±1% of steady state) IN IN, nom O O, max , O Case 1: On/Off input is enabled and then input power is applied (delay from instant at which V = V until Vo = All Tdelay 0.8 1.1 1.7 msec IN IN, min 10% of Vo, set) Case 2: Input power is applied for at least one second and then the On/Off input is enabled (delay from instant at All Tdelay 600 700 1800 µsec which Von/Off is enabled until Vo = 10% of Vo, set) Output voltage Rise time (time for Vo to rise from All Trise 1.2 1.5 2.7 msec 10% of Vo, set to 90% of Vo, set) o Output voltage overshoot (T = 25 C A V = V to V ,I = I to I ) 3.0 % V IN IN, min IN, max O O, min O, max O, set With or without maximum external capacitance T-Q1 123 133 143 °C ref Over Temperature Protection All (See Thermal Considerations section) Tref-Q4 121 131 141 °C PMBus Over Temperature Warning Threshold * All T 120 130 140 °C WARN Tracking Accuracy (Power-Up: 2V/ms) All VSEQ –Vo 100 mV (Power-Down: 2V/ms) All VSEQ –Vo 100 mV (V to V ; I to I VSEQ < Vo) IN, min IN, max O, min O, max Input Undervoltage Lockout Turn-on Threshold All 2.7 2.95 Vdc Turn-off Threshold All 2.4 2.75 Vdc Hysteresis All 0.05 0.4 Vdc PMBus Adjustable Input Under Voltage Lockout Thresholds All 2.5 14 Vdc Resolution of Adjustable Input Under Voltage Threshold All 500 mV PGOOD (Power Good) Signal Interface Open Drain, V ≤ 5VDC supply Overvoltage threshold for PGOOD ON All 103 108 113 %VO, set Overvoltage threshold for PGOOD OFF All 100 105 110 %VO, set Undervoltage threshold for PGOOD ON All 105 110 115 %VO, set Undervoltage threshold for PGOOD OFF All 85 90 95 %V O, set Pulldown resistance of PGOOD pin All 50 Ω Sink current capability into PGOOD pin All 5 mA * Over temperature Warning – Warning may not activate before alarm and unit may shutdown before warning September 24, 2014 ©2014 General Electric Company. All rights reserved. Page 5 Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensure a product will work properly and reliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/ge-energy-UDT020A0X-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om Data Sheet GE GE Critical Power UDT020A0X SERIES TM 20A Digital MicroDLynx : Non-Isolated DC-DC Power Modules 20 Amp POL DC-DC Converter 3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 20A Output Current Measures: 0.80 x 0.45 x 0.33” Digital Interface Specifications Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. See Feature Descriptions for additional information. Parameter Conditions Symbol Min Typ Max Unit PMBus Signal Interface Characteristics Input High Voltage (CLK, DATA) VIH 2.1 3.6 V Input Low Voltage (CLK, DATA) VIL 0.8 V Input high level current (CLK, DATA) IIH -10 10 μA Input low level current (CLK, DATA) I -10 10 μA IL Output Low Voltage (CLK, DATA, SMBALERT#) IOUT=2mA VOL 0.4 V Output high level open drain leakage current (DATA, V=3.6V I 0 10 μA OUT OH SMBALERT#) Pin capacitance C 0.7 pF O PMBus Operating frequency range Slave Mode FPMB 10 400 kHz Receive Mode 0 Data hold time tHD:DAT ns Transmit Mode 300 tSU:DAT Data setup time 250 ns Measurement System Characteristics Read delay time tDLY 153 192 231 μs Output current measurement range I 0 26 A RNG Output current measurement resolution IRES 62.5 mA Output current measurement accuracy at 25°C (with I OUT, IACC ±5 % CORR) Output current measurement offset 0.1 A IOFST VOUT measurement range VOUT(rng) 0 5.5 V 15.62 VOUT measurement resolution mV VOUT(res) 5 VOUT measurement accuracy V , -15 5 % OUT ACC V measurement offset OUT VOUT(ofst) -3 3 % VIN measurement range V 0 14.4 V IN(rng) VIN measurement resolution 32.5 mV VIN(res) V measurement accuracy IN VIN, ACC -15 5 % VIN measurement offset V -5.5 -2 1.4 LSB IN(ofst) Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensure a product will work properly and reliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/ge-energy-UDT020A0X-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om Data Sheet GE GE Critical Power UDT020A0X SERIES TM 20A Digital MicroDLynx : Non-Isolated DC-DC Power Modules 20 Amp POL DC-DC Converter 3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 20A Output Current Measures: 0.80 x 0.45 x 0.33” Characteristic Curves TM o The following figures provide typical characteristics for the 20A Digital MicroDLynx at 0.6Vo and 25 C. 22 90 85 18 80 0.5m/s (100LFM) Vin=3.3V 75 14 NC 70 Vin=14V Vin=12V 1m/s 10 65 (200LFM) 2m/s 60 (400LFM) 1.5m/s 6 55 (300LFM) 50 2 0 5 10 15 20 55 65 75 85 95 105 O OUTPUT CURRENT, I (A) AMBIENT TEMPERATURE, T C O A Figure 2. Derating Output Current versus Ambient Temperature Figure 1. Converter Efficiency versus Output Current. and Airflow. TIME, t (1μs/div) TIME, t (20μs /div) Figure 4. Transient Response to Dynamic Load Change from 50% Figure 3. Typical output ripple and noise (CO=2x47μF to 100% at 12Vin, Cout= 1x47uF +11x330uF CTune=47nF, ceramic, VIN = 12V, Io = Io,max, ). RTune=178 ohms TIME, t (2ms/div) TIME, t (2ms/div) Figure 5. Typical Start-up Using On/Off Voltage (Io = Io,max). Figure 6. Typical Start-up Using Input Voltage (VIN = 12V, Io = Io,max). September 24, 2014 ©2014 General Electric Company. All rights reserved. Page 7 Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensure a product will work properly and reliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/ge-energy-UDT020A0X-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om OUTPUT VOLTAGE ON/OFF VOLTAGE OUTPUT VOLTAGE EFFICIENCY, η (%) VO (V) (200mV/div) VON/OFF (V) (5V/div) VO (V) (10mV/div) OUTPUT VOLTAGE INPUT VOLTAGE OUTPUT CURRENT, OUTPUT OLTAGE OUTPUT CURRENT, Io (A) V (V) (200mV/div) V (V) (5V/div) I (A) (10Adiv) V (V) (10mV/div) O IN O O Data Sheet GE GE Critical Power UDT020A0X SERIES TM 20A Digital MicroDLynx : Non-Isolated DC-DC Power Modules 20 Amp POL DC-DC Converter 3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 20A Output Current Measures: 0.80 x 0.45 x 0.33” Characteristic Curves TM o The following figures provide typical characteristics for the 20A Digital MicroDLynx at 1.2Vo and 25 C. 22 95 90 18 85 Vin=3.3V NC 80 Vin=14V 14 75 0.5m/s Vin=12V 70 (100LFM) 10 65 2m/s 1.5m/s (400LFM) 60 (300LFM) 6 55 1m/s (200LFM) 50 2 0 5 10 15 20 55 65 75 85 95 105 O OUTPUT CURRENT, I (A) AMBIENT TEMPERATURE, T C O A Figure 8. Derating Output Current versus Ambient Temperature Figure 7. Converter Efficiency versus Output Current. and Airflow. TIME, t (1μs/div) TIME, t (20μs /div) Figure 10. Transient Response to Dynamic Load Change from Figure 9. Typical output ripple and noise (C =2x47μF O 50% to 100% at 12Vin, Cout= 1x47uF +5x330uF, CTune=10nF & ceramic, VIN = 12V, Io = Io,max, ). RTune=178 ohms TIME, t (2ms/div) TIME, t (2ms/div) Figure 12. Typical Start-up Using Input Voltage (VIN = 12V, Io = Figure 11. Typical Start-up Using On/Off Voltage (Io = Io,max). Io,max). Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensure a product will work properly and reliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/ge-energy-UDT020A0X-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om OUTPUT VOLTAGE ON/OFF VOLTAGE OUTPUT VOLTAGE VO (V) (500mV/div) VON/OFF (V) (5V/div) VO (V) (20mV/div) EFFICIENCY, η (%) OUTPUT VOLTAGE INPUT VOLTAGE OUTPUT CURRENT, OUTPUT VOLTAGE V (V) (500mV/div) V (V) (5V/div) I (A) (10Adiv) V (V) (20mV/div) OUTPUT CURRENT, Io (A) O IN O O Data Sheet GE GE Critical Power UDT020A0X SERIES TM 20A Digital MicroDLynx : Non-Isolated DC-DC Power Modules 20 Amp POL DC-DC Converter 3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 20A Output Current Measures: 0.80 x 0.45 x 0.33” Characteristic Curves TM o The following figures provide typical characteristics for the 20A Digital MicroDLynx at 1.8Vo and 25 C. 22 95 90 18 Vin=3.3V NC 85 14 Vin=14V 1m/s Vin=12V (200LFM) 0.5m/s 80 10 (100LFM) 1.5m/s (300LFM) 75 6 2m/s (400LFM) 70 2 0 5 10 15 20 55 65 75 85 95 105 O OUTPUT CURRENT, I (A) AMBIENT TEMPERATURE, T C O A Figure 14. Derating Output Current versus Ambient Figure 13. Converter Efficiency versus Output Current. Temperature and Airflow. TIME, t (1μs/div) TIME, t (20μs /div) Figure 16. Transient Response to Dynamic Load Change from Figure 15. Typical output ripple and noise (CO=2X47μF 50% to 100% at 12Vin, Cout= 2x47uF +3x330uF, CTune=5600pF ceramic, VIN = 12V, Io = Io,max, ). & RTune=220 ohms TIME, t (2ms/div) TIME, t (2ms/div) Figure 18. Typical Start-up Using Input Voltage (VIN = 12V, Io = Figure 17. Typical Start-up Using On/Off Voltage (Io = Io,max). Io,max). September 24, 2014 ©2014 General Electric Company. All rights reserved. Page 9 Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensure a product will work properly and reliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/ge-energy-UDT020A0X-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om OUTPUT VOLTAGE ON/OFF VOLTAGE OUTPUT VOLTAGE V (V) (500mV/div) V (V) 5V/div) V (V) (20mV/div) EFFICIENCY, η (%) O ON/OFF O OUTPUT VOLTAGE INPUT VOLTAGE OUTPUT CURRENT, OUTPUT VOLTAGE V (V) (500mV/div) V (V) (5V/div) I (A) (10Adiv) V (V) (20mV/div) OUTPUT CURRENT, Io (A) O IN O O Data Sheet GE GE Critical Power UDT020A0X SERIES TM 20A Digital MicroDLynx : Non-Isolated DC-DC Power Modules 20 Amp POL DC-DC Converter 3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 20A Output Current Measures: 0.80 x 0.45 x 0.33” Characteristic Curves TM o The following figures provide typical characteristics for the 20A Digital MicroDLynx at 2.5Vo and 25 C. 22 100 Vin=12V 95 18 NC 0.5m/s 90 (100LFM) 14 1m/s Vin=4.5V 85 (200LFM) Vin=14V 10 1.5m/s 80 (300LFM) 6 2m/s 75 (400LFM) 70 2 0 5 10 15 20 55 65 75 85 95 105 O OUTPUT CURRENT, I (A) AMBIENT TEMPERATURE, T C O A Figure 20. Derating Output Current versus Ambient Figure 19. Converter Efficiency versus Output Current. Temperature and Airflow. TIME, t (1μs/div) TIME, t (20μs /div) Figure 22. Transient Response to Dynamic Load Change from Figure 21. Typical output ripple and noise (C =2x47μF ceramic, O 50% to 100% at 12Vin, Cout= 2x47uF +2x330uF, CTune=3300pF VIN = 12V, Io = Io,max, ). & RTune=220 ohms TIME, t (2ms/div) TIME, t (2ms/div) Figure 24. Typical Start-up Using Input Voltage (VIN = 12V, Io = Figure 23. Typical Start-up Using On/Off Voltage (Io = Io,max). Io,max). Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensure a product will work properly and reliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/ge-energy-UDT020A0X-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om OUTPUT VOLTAGE ON/OFF VOLTAGE OUTPUT VOLTAGE VO (V) (1V/div) VON/OFF (V) (5V/div) VO (V) (20mV/div) EFFICIENCY, η (%) OUTPUT VOLTAGE INPUT VOLTAGE OUTPUT CURRENT, OUTPUT VOLTAGE VO (V) (1V/div) VIN (V) (5V/div) IO (A) (10Adiv) VO (V) (20mV/div) OUTPUT CURRENT, Io (A) Data Sheet GE GE Critical Power UDT020A0X SERIES TM 20A Digital MicroDLynx : Non-Isolated DC-DC Power Modules 20 Amp POL DC-DC Converter 3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 20A Output Current Measures: 0.80 x 0.45 x 0.33” Characteristic Curves TM o The following figures provide typical characteristics for the 20A Digital MicroDLynx at 3.3Vo and 25 C. 22 100 Vin=12V 95 18 NC NC 90 0 0.5 .5m m/s /s 14 ( (1 10 00 0L LFM FM) ) Vin=14V 1m 1m//s s 85 ( (2 20 00 0L LFM FM) ) Vin=4.5V 1. 1.5m 5m//s s 10 ( (3 300L 00LFM FM) ) 80 6 75 2m 2m//s s ( (4 40 00LFM 0LFM) ) 70 2 0 5 10 15 20 55 65 75 85 95 105 O OUTPUT CURRENT, I (A) AMBIENT TEMPERATURE, T C O A Figure 26. Derating Output Current versus Ambient Temperature Figure 25. Converter Efficiency versus Output Current. and Airflow. TIME, t (1μs/div) TIME, t (20μs /div) Figure 28 Transient Response to Dynamic Load Change from Figure 27. Typical output ripple and noise (C =2x47μF O 50% to 100% at 12Vin, Cout= 5x47uF +1x330uF, CTune=2200pF & ceramic, VIN = 12V, Io = Io,max, ). RTune=220 ohms TIME, t (2ms/div) TIME, t (2ms/div) Figure 30. Typical Start-up Using Input Voltage (VIN = 12V, Io = Figure 29. Typical Start-up Using On/Off Voltage (Io = Io,max). Io,max). September 24, 2014 ©2014 General Electric Company. All rights reserved. Page 11 Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensure a product will work properly and reliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/ge-energy-UDT020A0X-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om OUTPUT VOLTAGE ON/OFF VOLTAGE OUTPUT VOLTAGE V (V) (1V/div) V (V) (5V/div) V (V) (50mV/div) EFFICIENCY, η (%) O ON/OFF O OUTPUT VOLTAGE INPUT VOLTAGE OUTPUT CURRENT, OUTPUT VOLTAGE VO (V) (1V/div) VIN (V) (5V/div) I (A) (10Adiv) V (V) (50mV/div) OUTPUT CURRENT, Io (A) O O Data Sheet GE GE Critical Power UDT020A0X SERIES TM 20A Digital MicroDLynx : Non-Isolated DC-DC Power Modules 20 Amp POL DC-DC Converter 3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 20A Output Current Measures: 0.80 x 0.45 x 0.33” Characteristic Curves TM o The following figures provide typical characteristics for the 20A Digital MicroDLynx at 5Vo and 25 C. 22 100 Vin=12V 95 18 NC 90 0.5m/s (100LFM) 14 Vin=7V 1m/s (200LFM) Vin=14V 85 1.5m/s (300LFM) 10 80 2m/s (400LFM) 6 75 70 2 0 5 10 15 20 55 65 75 85 95 105 O OUTPUT CURRENT, I (A) AMBIENT TEMPERATURE, T C O A Figure 32. Derating Output Current versus Ambient Temperature Figure 31. Converter Efficiency versus Output Current. and Airflow. TIME, t (1μs/div) TIME, t (20μs /div) Figure 34. Transient Response to Dynamic Load Change from Figure 33. Typical output ripple and noise (C =2x47μF O 50% to 100% at 12Vin, Cout= 8x47uF, CTune=1500pF & ceramic, VIN = 12V, Io = Io,max, ). RTune=220 ohms TIME, t (2ms/div) TIME, t (2ms/div) Figure 36. Typical Start-up Using Input Voltage (VIN = 12V, Io = Figure 35. Typical Start-up Using On/Off Voltage (Io = Io,max). Io,max). Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensure a product will work properly and reliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/ge-energy-UDT020A0X-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om OUTPUT VOLTAGE ON/OFF VOLTAGE OUTPUT VOLTAGE VO (V) (2V/div) VON/OFF (V) (5V/div) VO (V) (50mV/div) EFFICIENCY, η (%) OUTPUT VOLTAGE INPUT VOLTAGE OUTPUT CURRENT, OUTPUT VOLTAGE VO (V) (2V/div) VIN (V) (5V/div) IO (A) (10Adiv) VO (V) (50mV/div) OUTPUT CURRENT, Io (A) Data Sheet GE GE Critical Power UDT020A0X SERIES TM 20A Digital MicroDLynx : Non-Isolated DC-DC Power Modules 20 Amp POL DC-DC Converter 3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 20A Output Current Measures: 0.80 x 0.45 x 0.33” 70 Design Considerations 2x47uF Ext Cap 4x47uF Ext Cap 60 Input Filtering 6x47uF Ext Cap 8x47uF Ext Cap TM 50 The 20A Digital MicroDLynx module should be connected to a low ac-impedance source. A highly 40 inductive source can affect the stability of the module. An input capacitance must be placed directly adjacent to the 30 input pin of the module, to minimize input ripple voltage and ensure module stability. 20 To minimize input voltage ripple, ceramic capacitors are 10 recommended at the input of the module. Figure 37 shows the input ripple voltage for various output voltages 0 at 20A of load current with 2x22 µF or 3x22 µF ceramic 0.511.522.533.544.55 capacitors and an input of 12V. Output Voltage(Volts) 450 Figure 38. Output ripple voltage for various output 400 2x22uF voltages with external 2x47 µF, 4x47 µF or 6x47 µF 350 ceramic capacitors at the output (20A load). Input voltage 3x22 uF is 12V. 300 250 200 Safety Considerations 150 For safety agency approval the power module must be 100 installed in compliance with the spacing and separation 50 requirements of the end-use safety agency standards, i.e., 0 UL 60950-1 2nd, CSA C22.2 No. 60950-1-07, DIN EN 60950- 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 1:2006 + A11 (VDE0805 Teil 1 + A11):2009-11; EN 60950- 1:2006 + A11:2009-03. Output Voltage (Vdc) For the converter output to be considered meeting the Figure 37. Input ripple voltage for various output requirements of safety extra-low voltage (SELV), the input voltages with 2x22 µF or 3x22 µF ceramic capacitors at must meet SELV requirements. The power module has the input (20A load). Input voltage is 12V. extra-low voltage (ELV) outputs when all inputs are ELV. Output Filtering The UDT020A0X series were tested using an external Littelfuse 456 series fast-acting fuse rated at 30 A, 100 Vdc These modules are designed for low output ripple voltage in the ungrounded input. and will meet the maximum output ripple specification with 0.1 µF ceramic and 2x47 µF ceramic capacitors at the output of the module. However, additional output filtering may be required by the system designer for a number of reasons. First, there may be a need to further reduce the output ripple and noise of the module. Second, the dynamic response characteristics may need to be customized to a particular load step change. To reduce the output ripple and improve the dynamic response to a step load change, additional capacitance at the output can be used. Low ESR polymer and ceramic capacitors are recommended to improve the dynamic response of the module. Figure 38 provides output ripple information for different external capacitance values at various Vo and a full load current of 20A. For stable operation of the module, limit the capacitance to less than the maximum output capacitance as specified in the electrical specification table. Optimal performance of the TM module can be achieved by using the Tunable Loop feature described later in this data sheet. September 24, 2014 ©2014 General Electric Company. All rights reserved. Page 13 Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensure a product will work properly and reliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/ge-energy-UDT020A0X-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om Input Ripple Voltage (mVp-p) Ripple (mVp-p) Data Sheet GE GE Critical Power UDT020A0X SERIES TM 20A Digital MicroDLynx : Non-Isolated DC-DC Power Modules 20 Amp POL DC-DC Converter 3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 20A Output Current Measures: 0.80 x 0.45 x 0.33” Digital On/Off Analog Feature Descriptions Please see the Digital Feature Descriptions section. Remote On/Off 3.3V DLYNX MODULE ENABLE +VIN The module can be turned ON and OFF either by using the VIN 47K 470 ON/OFF pin (Analog interface) or through the PMBus 20K Rpullup 100pF 20K Q6 interface (Digital). The module can be configured in a 4.7K I Q3 Q5 100K ON/OFF number of ways through the PMBus interface to react to the 20K 20K 20K Q7 2K + two ON/OFF inputs: 20K 20K Q2 20K V ON/OFF • Module ON/OFF can be controlled only through the analog interface (digital interface ON/OFF _ GND commands are ignored) • Module ON/OFF can be controlled only through the PMBus interface (analog interface is ignored) Figure 39. Circuit configuration for using positive On/Off • Module ON/OFF can be controlled by either the logic. analog or digital interface The default state of the module (as shipped from the factory) 3.3V DLYNX MODULE is to be controlled by the analog interface only. If the digital +VIN ENABLE interface is to be enabled, or the module is to be controlled 47K Rpullup only through the digital interface, this change must be made 470 through the PMBus. These changes can be made and 100pF Q6 I ON/OFF 20K 4.7K written to non-volatile memory on the module so that it is Q3 Q5 100K + 20K remembered for subsequent use. Q2 2K 20K V 20K Analog On/Off ON/OFF TM _ The 20A Digital MicroDLynx power modules feature an GND On/Off pin for remote On/Off operation. Two On/Off logic options are available. In the Positive Logic On/Off option, Figure 40. Circuit configuration for using negative On/Off (device code suffix “4” – see Ordering Information), the logic. module turns ON during a logic High on the On/Off pin and turns OFF during a logic Low. With the Negative Logic On/Off option, (no device code suffix, see Ordering Monotonic Start-up and Shutdown Information), the module turns OFF during logic High and ON The module has monotonic start-up and shutdown behavior during logic Low. The On/Off signal should be always for any combination of rated input voltage, output current referenced to ground. For either On/Off logic option, leaving and operating temperature range. the On/Off pin disconnected will turn the module ON when input voltage is present. Startup into Pre-biased Output For positive logic modules, the circuit configuration for using The module can start into a prebiased output as long as the the On/Off pin is shown in Figure 39. When the external prebias voltage is 0.5V less than the set output voltage. transistor Q2 is in the OFF state, the internal transistor Q7 is turned ON, which turn Q3 OFF which keeps Q6 OFF and Q5 Analog Output Voltage Programming OFF. This allows the internal PWM #Enable signal to be The output voltage of the module is programmable to any pulled up by the internal 3.3V, thus turning the module ON. voltage from 0.6dc to 5.5Vdc by connecting a resistor When transistor Q2 is turned ON, the On/Off pin is pulled between the Trim and SIG_GND pins of the module. Certain low, which turns Q7 OFF which turns Q3, Q6 and Q5 ON and restrictions apply on the output voltage set point depending the internal PWM #Enable signal is pulled low and the on the input voltage. These are shown in the Output Voltage module is OFF. A suggested value for Rpullup is 20kΩ. vs. Input Voltage Set Point Area plot in Fig. 41. The Upper For negative logic On/Off modules, the circuit configuration Limit curve shows that for output voltages lower than 1V, is shown in Fig. 40. The On/Off pin should be pulled high with the input voltage must be lower than the maximum of an external pull-up resistor (suggested value for the 3V to 14.4V. The Lower Limit curve shows that for output voltages 14V input range is 20Kohms). When transistor Q2 is in the higher than 0.6V, the input voltage needs to be larger than OFF state, the On/Off pin is pulled high, transistor Q3 is turned ON. This turns Q6 ON, followed by Q5 turning ON which pulls the internal ENABLE low and the module is OFF. To turn the module ON, Q2 is turned ON pulling the On/Off pin low, turning transistor Q3 OFF, which keeps Q6 and Q5 OFF resulting in the PWM Enable pin going high. September 24, 2014 ©2014 General Electric Company. All rights reserved. Page 14 Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensure a product will work properly and reliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/ge-energy-UDT020A0X-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om Data Sheet GE GE Critical Power UDT020A0X SERIES TM 20A Digital MicroDLynx : Non-Isolated DC-DC Power Modules 20 Amp POL DC-DC Converter 3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 20A Output Current Measures: 0.80 x 0.45 x 0.33” the minimum of 3V. . Table 1 16 VO, set (V) Rtrim (KΩ) 14 0.6 Open 0.9 40 12 Upper 1.0 30 10 1.2 20 8 1.5 13.33 6 1.8 10 4 2.5 6.316 Lower 2 3.3 4.444 5.0 2.727 0 0.51 1.5 2 2.53 3.54 4.55 5.56 Output Voltage (V) Digital Output Voltage Adjustment Figure 41. Output Voltage vs. Input Voltage Set Point Area Please see the Digital Feature Descriptions section. plot showing limits where the output voltage can be set for different input voltages. Remote Sense The power module has a Remote Sense feature to minimize the effects of distribution losses by regulating the voltage between the sense pins (VS+ and VS-). The voltage drop V (+) V (+) IN O between the sense pins and the VOUT and GND pins of the module should not exceed 0.5V. VS+ Analog Voltage Margining ON/OFF LOAD TRIM Output voltage margining can be implemented in the module by connecting a resistor, R , from the Trim pin margin-up R to the ground pin for margining-up the output voltage and trim by connecting a resistor, R , from the Trim pin to margin-down output pin for margining-down. Figure 43 shows the circuit SIG_GND configuration for output voltage margining. The POL VS─ Programming Tool, available at www.gecriticalpower.com under the Downloads section, also calculates the values of Caution – Do not connect SIG_GND to GND elsewhere in the Rmargin-up and Rmargin-down for a specific output voltage and % layout margin. Please consult your local GE technical representative for additional details. Figure 42. Circuit configuration for programming output voltage using an external resistor. Vo Rmargin-down Without an external resistor between Trim and SIG_GND MODULE pins, the output of the module will be 0.6Vdc. To calculate the value of the trim resistor, Rtrim for a desired output Q2 voltage, should be as per the following equation: Trim  12  Rmargin-up Rtrim= kΩ   () Vo− 0.6 Rtrim   Rtrim is the external resistor in kΩ Q1 Vo is the desired output voltage. SIG_GND Table 1 provides Rtrim values required for some common output voltages. Figure 43. Circuit Configuration for margining Output voltage. September 24, 2014 ©2014 General Electric Company. All rights reserved. Page 15 Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensure a product will work properly and reliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/ge-energy-UDT020A0X-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om Input Voltage (v) Data Sheet GE GE Critical Power UDT020A0X SERIES TM 20A Digital MicroDLynx : Non-Isolated DC-DC Power Modules 20 Amp POL DC-DC Converter 3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 20A Output Current Measures: 0.80 x 0.45 x 0.33” continue operation without interruption as the response to Digital Output Voltage Margining this fault (see the description of the PMBus command Please see the Digital Feature Descriptions section. VOUT_UV_FAULT_RESPONSE for additional information). Output Voltage Sequencing Overcurrent Protection The power module includes a sequencing feature, EZ- To provide protection in a fault (output overload) condition, SEQUENCE that enables users to implement various types of the unit is equipped with internal current-limiting circuitry output voltage sequencing in their applications. This is and can endure current limiting continuously. At the point of accomplished via an additional sequencing pin. When not current-limit inception, the unit enters hiccup mode. The unit using the sequencing feature, leave it unconnected. operates normally once the output current is brought back into its specified range. The voltage applied to the SEQ pin should be scaled down by the same ratio as used to scale the output voltage down Digital Adjustable Overcurrent Warning to the reference voltage of the module. This is accomplished Please see the Digital Feature Descriptions section. by an external resistive divider connected across the sequencing voltage before it is fed to the SEQ pin as shown Overtemperature Protection in Fig. 44. In addition, a small capacitor (suggested value To provide protection in a fault condition, the unit is 100pF) should be connected across the lower resistor R1. equipped with a thermal shutdown circuit. The unit will shut o o For all DLynx modules, the minimum recommended delay down if the over-temperature threshold of 128 C ~ 130 C between the ON/OFF signal and the sequencing signal is (typ) is exceeded at the thermal reference point Tref .Please 10ms to ensure that the module output is ramped up refer to Electrical characteristic table, over-temperature according to the sequencing signal. This ensures that the section on page 5. Once the unit goes into thermal module soft-start routine is completed before the shutdown it will then wait to cool before attempting to sequencing signal is allowed to ramp up. restart. Digital Temperature Status via PMBus DLynx Module Please see the Digital Feature Descriptions section. V SEQ Digitally Adjustable Output Over and Under Voltage 20K Protection Please see the Digital Feature Descriptions section. SEQ Input Undervoltage Lockout R1=Rtrim At input voltages below the input undervoltage lockout limit, SIG_GND the module operation is disabled. The module will begin to 100 pF operate at an input voltage above the undervoltage lockout turn-on threshold. Figure 44. Circuit showing connection of the sequencing Digitally Adjustable Input Undervoltage Lockout signal to the SEQ pin. Please see the Digital Feature Descriptions section. When the scaled down sequencing voltage is applied to the SEQ pin, the output voltage tracks this voltage until the Digitally Adjustable Power Good Thresholds output reaches the set-point voltage. The final value of the Please see the Digital Feature Descriptions section. sequencing voltage must be set higher than the set-point voltage of the module. The output voltage follows the sequencing voltage on a one-to-one basis. By connecting multiple modules together, multiple modules can track their output voltages to the voltage applied on the SEQ pin. To initiate simultaneous shutdown of the modules, the SEQ pin voltage is lowered in a controlled manner. The output voltage of the modules tracks the voltages below their set- point voltages on a one-to-one basis. A valid input voltage must be maintained until the tracking and output voltages reach ground potential. Note that in all digital DLynx series of modules, the PMBus Output Undervoltage Fault will be tripped when sequencing is employed. This will be detected using the STATUS_WORD and STATUS_VOUT PMBus commands. In addition, the SMBALERT# signal will be asserted low as occurs for all faults and warnings. To avoid the module shutting down due to the Output Undervoltage Fault, the module must be set to September 24, 2014 ©2014 General Electric Company. All rights reserved. Page 16 Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensure a product will work properly and reliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/ge-energy-UDT020A0X-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om Data Sheet GE GE Critical Power UDT020A0X SERIES TM 20A Digital MicroDLynx : Non-Isolated DC-DC Power Modules 20 Amp POL DC-DC Converter 3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 20A Output Current Measures: 0.80 x 0.45 x 0.33” Larger values of external capacitance could also cause the Synchronization module to become unstable. The module switching frequency can be synchronized to a TM The Tunable Loop allows the user to externally adjust the signal with an external frequency within a specified range. voltage control loop to match the filter network connected Synchronization can be done by using the external signal TM to the output of the module. The Tunable Loop is applied to the SYNC pin of the module as shown in Fig. 45, implemented by connecting a series R-C between the VS+ with the converter being synchronized by the rising edge of and TRIM pins of the module, as shown in Fig. 46. This R-C the external signal. The Electrical Specifications table allows the user to externally adjust the voltage loop specifies the requirements of the external SYNC signal. If the feedback compensation of the module. SYNC pin is not used, the module should free run at the default switching frequency. If synchronization is not being used, connect the SYNC pin to GND. VOUT VS+ MODULE RTune SYNC CO MODULE CTune + TRIM ─ GND RTrim SIG_GND Figure 45. External source connections to synchronize GND switching frequency of the module. Measuring Output Current, Output Voltage and Figure. 46. Circuit diagram showing connection of R TUME Input Voltage and C to tune the control loop of the module. TUNE Please see the Digital Feature Descriptions section. Dual Layout Recommended values of RTUNE and CTUNE for different output capacitor combinations are given in Tables 2 and 3. Table 3 Identical dimensions and pin layout of Analog and Digital shows the recommended values of RTUNE and CTUNE for MicroDLynx modules permit migration from one to the other different values of ceramic output capacitors up to 1000uF without needing to change the layout. In both cases the trim that might be needed for an application to meet output resistor is connected between trim and signal ground. The ripple and noise requirements. Selecting R and C TUNE TUNE output of the analog module cannot be trimmed down to according to Table 3 will ensure stable operation of the 0.45V module. In applications with tight output voltage limits in the Power Good presence of dynamic current loading, additional output The module provides a Power Good (PGOOD) signal that is capacitance will be required. Table 3 lists recommended implemented with an open-drain output to indicate that the values of RTUNE and CTUNE in order to meet 2% output output voltage is within the regulation limits of the power voltage deviation limits for some common output voltages module. The PGOOD signal will be de-asserted to a low state in the presence of a 10A to 20A step change (50% of full if any condition such as overtemperature, overcurrent or load), with an input voltage of 12V. loss of regulation occurs that would result in the output voltage going ±10% outside the setpoint value. The PGOOD Please contact your GE technical representative to obtain terminal can be connected through a pullup resistor more details of this feature as well as for guidelines on how (suggested value 100KΩ) to a source of 5VDC or lower. to select the right value of external R-C to tune the module for best transient performance and stable operation for TM Tunable Loop other output capacitance values. The module has a feature that optimizes transient response TM of the module called Tunable Loop . External capacitors are usually added to the output of the module for two reasons: to reduce output ripple and noise (see Figure 38) and to reduce output voltage deviations from the steady-state value in the presence of dynamic load current changes. Adding external capacitance however affects the voltage control loop of the module, typically causing the loop to slow down with sluggish response. September 24, 2014 ©2014 General Electric Company. All rights reserved. Page 17 Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensure a product will work properly and reliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/ge-energy-UDT020A0X-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om Data Sheet GE GE Critical Power UDT020A0X SERIES TM 20A Digital MicroDLynx : Non-Isolated DC-DC Power Modules 20 Amp POL DC-DC Converter 3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 20A Output Current Measures: 0.80 x 0.45 x 0.33” Table 2. General recommended values of of RTUNE and CTUNE for Vin=12V and various external ceramic capacitor combinations. Co 2x47μF 4x47μF 6x47μF 10x47μF 20x47μF R TUNE 330 330 270 220 180 C TUNE 47pF 560pF 1200pF 2200pF 4700pF Table 3. Recommended values of R and C to obtain TUNE TUNE transient deviation of 2% of Vout for a 10A step load with Vin=12V. Vo 5V 3.3V 2.5V 1.8V 1.2V 0.6V 2x47μF 2x47μF 1x47μF 1x47μF 5x47μF + + + + + Co 8x47μF 1x330μF 2x330μF 3x330μF 5x330μF 11x330μF Polymer Polymer Polymer Polymer Polymer RTUNE 220 220 220 220 180 180 C TUNE 1500pF 2200pF 3300pF 5600pF 10nF 47nF ΔV 100mV 64mV 49mV 36mV 24mV 12mV Note: The capacitors used in the Tunable Loop tables are 47 μF/3 mΩ ESR ceramic and 330 μF/12 mΩ ESR polymer capacitors. September 24, 2014 ©2014 General Electric Company. All rights reserved. Page 18 Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensure a product will work properly and reliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/ge-energy-UDT020A0X-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om Data Sheet GE GE Critical Power UDT020A0X SERIES TM 20A Digital MicroDLynx : Non-Isolated DC-DC Power Modules 20 Amp POL DC-DC Converter 3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 20A Output Current Measures: 0.80 x 0.45 x 0.33” either address resistor value is outside the range specified in Digital Feature Descriptions Table 4, the module will respond to address 127. PMBus Interface Capability Table 4 TM The 20A Digital MicroDLynx power modules have a PMBus Digit Resistor Value (KΩ) interface that supports both communication and control. 0 10 The PMBus Power Management Protocol Specification can 1 15.4 be obtained from www.pmbus.org. The modules support a 2 23.7 subset of version 1.1 of the specification (see Table 6 for a 3 36.5 list of the specific commands supported). Most module parameters can be programmed using PMBus and stored as 4 54.9 defaults for later use. 5 84.5 All communication over the module PMBus interface must 6 130 support the Packet Error Checking (PEC) scheme. The PMBus 7 200 master must generate the correct PEC byte for all transactions, and check the PEC byte returned by the 2 The user must know which I C addresses are reserved in a module. system for special functions and set the address of the The module also supports the SMBALERT# response module to avoid interfering with other system operations. protocol whereby the module can alert the bus master if it Both 100kHz and 400kHz bus speeds are supported by the wants to talk. For more information on the SMBus alert module. Connection for the PMBus interface should follow response protocol, see the System Management Bus the High Power DC specifications given in section 3.1.3 in the (SMBus) specification. SMBus specification V2.0 for the 400kHz bus speed or the Low Power DC specifications in section 3.1.2. The complete The module has non-volatile memory that is used to store SMBus specification is available from the SMBus web site, configuration settings. Not all settings programmed into the smbus.org. device are automatically saved into this non-volatile memory, only those specifically identified as capable of being stored can be saved (see Table 6 for which command ADDR1 parameters can be saved to non-volatile storage). ADDR0 PMBus Data Format For commands that set thresholds, voltages or report such R R ADDR0 ADDR1 quantities, the module supports the “Linear” data format among the three data formats supported by PMBus. The SIG GND Linear Data Format is a two byte value with an 11-bit, two’s complement mantissa and a 5-bit, two’s complement exponent. The format of the two data bytes is shown below: Figure 47. Circuit showing connection of resistors used to set the PMBus address of the module. Data Byte High Data Byte Low PMBus Enabled On/Off The module can also be turned on and off via the PMBus 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 interface. The OPERATION command is used to actually turn Exponent Mantissa the module on and off via the PMBus, while the MSB MSB ON_OFF_CONFIG command configures the combination of analog ON/OFF pin input and PMBus commands needed to turn the module on and off. Bit [7] in the OPERATION The value is of the number is then given by command data byte enables the module, with the following Exponent functions: Value = Mantissa x 2 PMBus Addressing 0 : Output is disabled 1 : Output is enabled The power module can be addressed through the PMBus using a device address. The module has 64 possible This module uses the lower five bits of the ON_OFF_CONFIG addresses (0 to 63 in decimal) which can be set using data byte to set various ON/OFF options as follows: resistors connected from the ADDR0 and ADDR1 pins to GND. Note that some of these addresses (0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 12, 40, 44, 45, 55 in decimal) are reserved Bit Position 4 3 2 1 0 according to the SMBus specifications and may not be Access r/w r/w r/w r/w r useable. The address is set in the form of two octal (0 to 7) Function PU CMD CPR POL CPA digits, with each pin setting one digit. The ADDR1 pin sets Default Value 1 0 1 1 1 the high order digit and ADDR0 sets the low order digit. The resistor values suggested for each digit are shown in Table 4 (1% tolerance resistors are recommended). Note that if September 24, 2014 ©2014 General Electric Company. All rights reserved. Page 19 Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensure a product will work properly and reliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/ge-energy-UDT020A0X-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om Data Sheet GE GE Critical Power UDT020A0X SERIES TM 20A Digital MicroDLynx : Non-Isolated DC-DC Power Modules 20 Amp POL DC-DC Converter 3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 20A Output Current Measures: 0.80 x 0.45 x 0.33” PU: Sets the default to either operate any time input power Output Voltage Adjustment Using the PMBus is present or for the ON/OFF to be controlled by the analog ON/OFF input and the PMBus OPERATION command. This bit The VOUT_SCALE_LOOP parameter is important for a number of PMBus commands related to output voltage is used together with the CP, CMD and ON bits to determine trimming, margining, over/under voltage protection and the startup. PGOOD thresholds. The output voltage of the module is set Bit Value Action as the combination of the voltage divider formed by RTrim Module powers up any time power is and a 20kΩ upper divider resistor inside the module, and the 0 present regardless of state of the analog internal reference voltage of the module. The reference ON/OFF pin voltage VREF is nominally set at 600mV, and the output Module does not power up until regulation voltage is then given by commanded by the analog ON/OFF pin and 1 the OPERATION command as programmed 20000+RTrim   in bits [2:0] of the ON_OFF_CONFIG register. V = ×V OUT REF   RTrim   CMD: The CMD bit controls how the device responds to the Hence the module output voltage is dependent on the value OPERATION command. of RTrim which is connected external to the module. The information on the output voltage divider ratio is conveyed Bit Value Action to the module through the VOUT_SCALE_LOOP parameter Module ignores the ON bit in the 0 which is calculated as follows: OPERATION command Module responds to the ON bit in the RTrim 1 VOUT_SCALE_LOOP= OPERATION command 20000+RTrim The VOUT_SCALE_LOOP parameter is specified using the CPR: Sets the response of the analog ON/OFF pin. This bit is “Linear” format and two bytes. The upper five bits [7:3] of the used together with the CMD, PU and ON bits to determine high byte are used to set the exponent which is fixed at –9 startup. (decimal). The remaining three bits of the high byte [2:0] and the eight bits of the lower byte are used for the mantissa. Bit Value Action The default value of the mantissa is 00100000000 Module ignores the analog ON/OFF pin, i.e. corresponding to 256 (decimal), corresponding to a divider 0 ON/OFF is only controlled through the ratio of 0.5. The maximum value of the mantissa is 512 PMBUS via the OPERATION command corresponding to a divider ratio of 1. Note that the Module requires the analog ON/OFF pin to 1 resolution of the VOUT_SCALE_LOOP command is 0.2%. be asserted to start the unit When PMBus commands are used to trim or margin the PMBus Adjustable Soft Start Rise Time output voltage, the value of VREF is what is changed inside The soft start rise time can be adjusted in the module via the module, which in turn changes the regulated output PMBus. When setting this parameter, make sure that the voltage of the module. charging current for output capacitors can be delivered by The nominal output voltage of the module can be adjusted the module in addition to any load current to avoid nuisance with a minimum step size of 0.4% over a ±25% range from tripping of the overcurrent protection circuitry during nominal using the VOUT_TRIM command over the PMBus. startup. The TON_RISE command sets the rise time in ms, and allows choosing soft start times between 600μs and The VOUT_TRIM command is used to apply a fixed offset 9ms, with possible values listed in Table 5. Note that the voltage to the output voltage command value exponent is fixed at -4 (decimal) and the upper two bits of the mantissa are also fixed at 0. using the “Linear” mode with the exponent fixed at –10 (decimal). The value of the offset voltage is given by Table 5 −10 V =VOUT_TRIM×2 Rise Time Exponent Mantissa OUT(offset) 600μs 11100 00000001010 This offset voltage is added to the voltage set through the 900μs 11100 00000001110 divider ratio and nominal V to produce the trimmed REF 1.2ms 11100 00000010011 output voltage. The valid range in two’s complement for this 1.8ms 11100 00000011101 command is –4000h to 3fffh. The high order two bits of 2.7ms 11100 00000101011 the high byte must both be either 0 or 1. If a value outside of 4.2ms 11100 00001000011 the +/-25% adjustment range is given with this command, 6.0ms 11100 00001100000 the module will set it’s output voltage to the nominal value 9.0ms 11100 00010010000 (as if VOUT_TRIM had been set to 0), assert SMBALRT#, set the CML bit in STATUS_BYTE and the invalid data bit in STATUS_CML. September 24, 2014 ©2014 General Electric Company. All rights reserved. Page 20 Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensure a product will work properly and reliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/ge-energy-UDT020A0X-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om Data Sheet GE GE Critical Power UDT020A0X SERIES TM 20A Digital MicroDLynx : Non-Isolated DC-DC Power Modules 20 Amp POL DC-DC Converter 3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 20A Output Current Measures: 0.80 x 0.45 x 0.33” PMBus Adjustable Output Over and Under Voltage Output Voltage Margining Using the PMBus Protection The module can also have its output voltage margined via The module has output over and under voltage protection PMBus commands. The command VOUT_MARGIN_HIGH capability. The PMBus command VOUT_OV_FAULT_LIMIT is sets the margin high voltage, while the command used to set the output over voltage threshold from four VOUT_MARGIN_LOW sets the margin low voltage. Both the possible values: 108%, 110%, 112% or 115% of the VOUT_MARGIN_HIGH and VOUT_MARGIN_LOW commands commanded output voltage. The command use the “Linear” mode with the exponent fixed at –10 VOUT_UV_FAULT_LIMIT sets the threshold that causes an (decimal). Two bytes are used for the mantissa with the output under voltage fault and can also be selected from upper bit [7] of the high byte fixed at 0. The actual margined four possible values: 92%, 90%, 88% or 85%. The default output voltage is a combination of the VOUT_MARGIN_HIGH values are 112% and 88% of commanded output voltage. or VOUT_MARGIN_LOW and the VOUT_TRIM values as Both commands use two data bytes formatted as two’s shown below. complement binary integers. The “Linear” mode is used with V = OUT(MH) the exponent fixed to –10 (decimal) and the effective over or under voltage trip points given by: −10 (VOUT_MARGIN_HIGH+VOUT_TRIM)×2 −10 V =(VOUT_OV_FAULT_LIMIT)×2 OUT(OV_REQ) V = OUT(ML) −10 −10 V =(VOUT_UV_FAULT_LIMIT)×2 (VOUT_MARGIN_LOW+VOUT_TRIM)×2 OUT(UV_REQ) Note that the sum of the margin and trim voltages cannot be outside the ±25% window around the nominal output Values within the supported range for over and voltage. The data associated with VOUT_MARGIN_HIGH and undervoltage detection thresholds will be set to the nearest VOUT_MARGIN_LOW can be stored to non-volatile memory fixed percentage. Note that the correct value for using the STORE_DEFAULT_ALL command. VOUT_SCALE_LOOP must be set in the module for the correct over or under voltage trip points to be calculated. The module is commanded to go to the margined high or In addition to adjustable output voltage protection, the 12A low voltages using the OPERATION command. Bits [5:2] are TM Digital Pico DLynx module can also be programmed for used to enable margining as follows: the response to the fault. The VOUT_OV_FAULT RESPONSE 00XX : Margin Off and VOUT_UV_FAULT_RESPONSE commands specify the 0101 : Margin Low (Ignore Fault) response to the fault. Both these commands use a single 0110 : Margin Low (Act on Fault) data byte with the possible options as shown below. 1001 : Margin High (Ignore Fault) 1. Continue operation without interruption (Bits [7:6] 1010 : Margin High (Act on Fault) = 00, Bits [5:3] = xxx) PMBus Adjustable Overcurrent Warning 2. Continue for four switching cycles and then shut down if the fault is still present, followed by no The module can provide an overcurrent warning via the restart or continuous restart (Bits [7:6] = 01, Bits PMBus. The threshold for the overcurrent warning can be [5:3] = 000 means no restart, Bits [5:3] = 111 set using the parameter IOUT_OC_WARN_LIMIT. This means continuous restart) command uses the “Linear” data format with a two byte 3. Immediate shut down followed by no restart or data word where the upper five bits [7:3] of the high byte continuous restart (Bits [7:6] = 10, Bits [5:3] = 000 represent the exponent and the remaining three bits of the means no restart, Bits [5:3] = 111 means high byte [2:0] and the eight bits in the low byte represent continuous restart). the mantissa. The exponent is fixed at –1 (decimal). The upper five bits of the mantissa are fixed at 0 while the lower 4. Module output is disabled when the fault is present six bits are programmable. For production codes after April and the output is enabled when the fault no longer 2013, the value for IOUT_OC_WARN_LIMIT will be fixed at exists (Bits [7:6] = 11, Bits [5:3] = xxx). 25A. For earlier production codes the actual value for Note that separate response choices are possible for output IOUT_OC_WARN_LIMIT will vary from module to module due over voltage or under voltage faults. to calibration during production testing. The resolution of this warning limit is 500mA. The value of the IOUT_OC_WARN_LIMIT can be stored to non-volatile memory using the STORE_DEFAULT_ALL command. Temperature Status via PMBus The module can provide information related to temperature of the module through the STATUS_TEMPERATURE command. The command returns information about whether the pre-set over temperature fault threshold and/or the warning threshold have been exceeded. September 24, 2014 ©2014 General Electric Company. All rights reserved. Page 21 Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensure a product will work properly and reliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/ge-energy-UDT020A0X-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om Data Sheet GE GE Critical Power UDT020A0X SERIES TM 20A Digital MicroDLynx : Non-Isolated DC-DC Power Modules 20 Amp POL DC-DC Converter 3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 20A Output Current Measures: 0.80 x 0.45 x 0.33” PGOOD terminal can be connected through a pullup resistor PMBus Adjustable Input Undervoltage Lockout (suggested value 100KΩ) to a source of 5VDC or lower. The module allows adjustment of the input under voltage lockout and hysteresis. The command VIN_ON allows setting Measurement of Output Current, Output Voltage the input voltage turn on threshold, while the VIN_OFF and Input Voltage command sets the input voltage turn off threshold. For the The module is capable of measuring key module VIN_ON command, possible values are 2.75V, and 3V to 14V parameters such as output current and voltage and input in 0.5V steps. For the VIN_OFF command, possible values voltage and providing this information through the PMBus are 2.5V to 14V in 0.5V steps. If other values are entered for interface. Roughly every 200μs, the module makes 16 either command, they will be mapped to the closest of the measurements each of output current, voltage and input allowed values. voltage. Average values of each of these measurements are Both the VIN_ON and VIN_OFF commands use the “Linear” then calculated and placed in the appropriate registers. format with two data bytes. The upper five bits represent the These values in the registers can then be read using the exponent (fixed at -2) and the remaining 11 bits represent PMBus interface. the mantissa. For the mantissa, the four most significant bits Measuring Output Current Using the PMBus are fixed at 0. The module measures current by using the inductor winding Power Good resistance as a current sense element. The inductor winding resistance is then the current gain factor used to scale the The module provides a Power Good (PGOOD) signal that is measured voltage into a current reading. This gain factor is implemented with an open-drain output to indicate that the the argument of the IOUT_CAL_GAIN command, and output voltage is within the regulation limits of the power consists of two bytes in the linear data format. The exponent module. The PGOOD signal will be de-asserted to a low state uses the upper five bits [7:3] of the high data byte in two-s if any condition such as overtemperature, overcurrent or complement format and is fixed at –15 (decimal). The loss of regulation occurs that would result in the output remaining 11 bits in two’s complement binary format voltage going outside the specified thresholds. The PGOOD represent the mantissa. During manufacture, each module thresholds are user selectable via the PMBus (the default is calibrated by measuring and storing the current gain values are as shown in the Feature Specifications Section). factor into non-volatile storage. Each threshold is set up symmetrically above and below the nominal value. The POWER_GOOD_ON command sets the The current measurement accuracy is also improved by output voltage level above which PGOOD is asserted (lower each module being calibrated during manufacture with the threshold). For example, with a 1.2V nominal output voltage, offset in the current reading. The IOUT_CAL_OFFSET the POWER_GOOD_ON threshold can set the lower command is used to store and read the current offset. The threshold to 1.14 or 1.1V. Doing this will automatically set argument for this command consists of two bytes the upper thresholds to 1.26 or 1.3V. composed of a 5-bit exponent (fixed at -4d) and a 11-bit The POWER_GOOD_OFF command sets the level below mantissa. This command has a resolution of 62.5mA and a which the PGOOD command is de-asserted. This command range of -4000mA to +3937.5mA. also sets two thresholds symmetrically placed around the nominal output voltage. Normally, the POWER_GOOD_ON The READ_IOUT command provides module average output threshold is set higher than the POWER_GOOD_OFF current information. This command only supports positive or threshold. current sourced from the module. If the converter is sinking current a reading of 0 is provided. The READ_IOUT Both POWER_GOOD_ON and POWER_GOOD_OFF command returns two bytes of data in the linear data commands use the “Linear” format with the exponent fixed format. The exponent uses the upper five bits [7:3] of the at –10 (decimal). The two thresholds are given by high data byte in two-s complement format and is fixed at – −10 4 (decimal). The remaining 11 bits in two’s complement V =(POWER_GOOD_ON)×2 OUT(PGOOD_ON) th binary format represent the mantissa with the 11 bit fixed −10 at 0 since only positive numbers are considered valid. V =(POWER_GOOD_OFF)×2 OUT(PGOOD_OFF) Both commands use two data bytes with bit [7] of the high Note that the current reading provided by the module is not byte fixed at 0, while the remaining bits are r/w and used to corrected for temperature. The temperature corrected set the mantissa using two’s complement representation. current reading for module temperature TModule can be Both commands also use the The VOUT_SCALE_LOOP estimated using the following equation parameter so it must be set correctly. The default value of POWER_GOOD_ON is set at 1.1035V and that of the � �������� POWER_GOOD_OFF is set at 1.08V. The values associated � = �������� �� ��� � ��� � �� ������ ��� with these commands can be stored in non-volatile memory using the STORE_DEFAULT_ALL command. where IOUT_CORR is the temperature corrected value of the current measurement, IREAD_OUT is the module current measurement value, T is the temperature of the inductor IND winding on the module. Since it may be difficult to measure September 24, 2014 ©2014 General Electric Company. All rights reserved. Page 22 Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensure a product will work properly and reliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/ge-energy-UDT020A0X-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om Data Sheet GE GE Critical Power UDT020A0X SERIES TM 20A Digital MicroDLynx : Non-Isolated DC-DC Power Modules 20 Amp POL DC-DC Converter 3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 20A Output Current Measures: 0.80 x 0.45 x 0.33” TIND, it may be approximated by an estimate of the module temperature. STATUS_BYTE : Returns one byte of information with a summary of the most critical device faults. Measuring Output Voltage Using the PMBus Bit Default Flag Position Value The module can provide output voltage information using 7 X 0 the READ_VOUT command. The command returns two bytes 6 OFF 0 of data all representing the mantissa while the exponent is 5 VOUT Overvoltage 0 fixed at -10 (decimal). 4 IOUT Overcurrent 0 During manufacture of the module, offset and gain 3 VIN Undervoltage 0 correction values are written into the non-volatile memory 2 Temperature 0 of the module. The command VOUT_CAL_OFFSET can be 1 CML (Comm. Memory Fault) 0 used to read and/or write the offset (two bytes consisting of 0 None of the above 0 a 16-bit mantissa in two’s complement format) while the exponent is always fixed at -10 (decimal). The allowed range STATUS_WORD: Returns two bytes of information with a for this offset correction is -125 to 124mV. The command summary of the module’s fault/warning conditions. VOUT_CAL_GAIN can be used to read and/or write the gain Low Byte correction - two bytes consisting of a five-bit exponent (fixed Bit Default Flag at -8) and a 11-bit mantissa. The range of this correction Position Value factor is -0.125 to +0.121, with a resolution of 0.004. The 7 X 0 corrected output voltage reading is then given by: 6 OFF 0 5 VOUT Overvoltage 0 V (Final)= OUT 4 IOUT Overcurrent 0 . [V (Initial)×(1+VOUT_CAL_GAIN)] 3 VIN Undervoltage 0 OUT 2 Temperature 0 +VOUT_CAL_OFFSET 1 CML (Comm. Memory Fault) 0 0 None of the above 0 Measuring Input Voltage Using the PMBus The module can provide output voltage information using High Byte the READ_VIN command. The command returns two bytes Bit Default Flag of data in the linear format. The upper five bits [7:3] of the Position Value high data form the two’s complement representation of the 7 VOUT fault or warning 0 exponent which is fixed at –5 (decimal). The remaining 11 6 IOUT fault or warning 0 bits are used for two’s complement representation of the 5 X 0 th mantissa, with the 11 bit fixed at zero since only positive 4 X 0 numbers are valid. 3 POWER_GOOD# (is negated) 0 During module manufacture, offset and gain correction 2 X 0 values are written into the non-volatile memory of the 1 X 0 module. The command VIN_CAL_OFFSET can be used to 0 X 0 read and/or write the offset - two bytes consisting of a five- bit exponent (fixed at -5) and a11-bit mantissa in two’s STATUS_VOUT : Returns one byte of information relating to complement format. The allowed range for this offset the status of the module’s output voltage related faults. correction is -2to 1.968V, and the resolution is 32mV. The Bit Default command VIN_CAL_GAIN can be used to read and/or write Flag Position Value the gain correction - two bytes consisting of a five-bit 7 VOUT OV Fault 0 exponent (fixed at -8) and a 11-bit mantissa. The range of 6 X 0 this correction factor is -0.125 to +0.121, with a resolution of 5 X 0 0.004. The corrected output voltage reading is then given by: 4 VOUT UV Fault 0 3 X 0 V (Final)= IN 2 X 0 [V (Initial)×(1+VIN_CAL_GAIN)] IN 1 X 0 0 X 0 +VIN_CAL_OFFSET Reading the Status of the Module using the PMBus The module supports a number of status information commands implemented in PMBus. However, not all features are supported in these commands. A 1 in the bit position indicates the fault that is flagged. September 24, 2014 ©2014 General Electric Company. All rights reserved. Page 23 Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensure a product will work properly and reliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/ge-energy-UDT020A0X-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om Data Sheet GE GE Critical Power UDT020A0X SERIES TM 20A Digital MicroDLynx : Non-Isolated DC-DC Power Modules 20 Amp POL DC-DC Converter 3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 20A Output Current Measures: 0.80 x 0.45 x 0.33” STATUS_IOUT : Returns one byte of information relating to Low Byte the status of the module’s output voltage related faults. Default Bit Position Flag Bit Default Value Flag Position Value 7:2 Module Name 000010 7 IOUT OC Fault 0 1:0 Reserved 10 6 X 0 5 IOUT OC Warning 0 High Byte 4 X 0 Default Bit Position Flag Value 3 X 0 2 X 0 7:0 Module Revision Number None 1:0 Manufacturer ID 00 1 X 0 0 X 0 STATUS_TEMPERATURE : Returns one byte of information relating to the status of the module’s temperature related faults. Bit Default Flag Position Value 7 OT Fault 0 6 OT Warning 0 5 X 0 4 X 0 3 X 0 2 X 0 1 X 0 0 X 0 STATUS_CML : Returns one byte of information relating to the status of the module’s communication related faults. Bit Default Flag Position Value 7 Invalid/Unsupported Command 0 6 Invalid/Unsupported Command 0 5 Packet Error Check Failed 0 4 X 0 3 X 0 2 X 0 1 Other Communication Fault 0 0 X 0 MFR_VIN_MIN : Returns minimum input voltage as two data bytes of information in Linear format (upper five bits are exponent – fixed at -2, and lower 11 bits are mantissa in two’s complement format – fixed at 12) MFR_VOUT_MIN : Returns minimum output voltage as two data bytes of information in Linear format (upper five bits are exponent – fixed at -10, and lower 11 bits are mantissa in two’s complement format – fixed at 614) MFR_SPECIFIC_00: Returns information related to the type of module. Bits [7:2] in the Low Byte indicate the module type (000010 corresponds to the UDT020 series of module). Bits 1:0 in the High Byte are used to indicate the manufacturer ID, with 00 reserved for GE. September 24, 2014 ©2014 General Electric Company. All rights reserved. Page 24 Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensure a product will work properly and reliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/ge-energy-UDT020A0X-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om Data Sheet GE GE Critical Power UDT020A0X SERIES TM 20A Digital MicroDLynx : Non-Isolated DC-DC Power Modules 20 Amp POL DC-DC Converter 3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 20A Output Current Measures: 0.80 x 0.45 x 0.33” Summary of Supported PMBus Commands Please refer to the PMBus 1.1 specification for more details of these commands. Table 6 Hex Non-Volatile Command Brief Description Code Memory Storage Turn Module on or off. Also used to margin the output voltage Format Unsigned Binary Bit Position 7 6 5 4 3 2 1 0 01 OPERATION Access r/w r r/w r/w r/w r/w r r Function On X Margin X X Default Value 0 0 0 0 0 0 X X Configures the ON/OFF functionality as a combination of analog ON/OFF pin and PMBus commands Format Unsigned Binary 02 ON_OFF_CONFIG Bit Position 7 6 5 4 3 2 1 0 YES Access r r r r/w r/w r/w r/w r Function X X X pu cmd cpr pol cpa Default Value 0 0 0 1 0 1 1 1 Clear any fault bits that may have been set, also releases the SMBALERT# signal 03 CLEAR_FAULTS if the device has been asserting it. Used to control writing to the module via PMBus. Copies the current register setting in the module whose command code matches the value in the data byte into non-volatile memory (EEPROM) on the module Format Unsigned Binary Bit Position 7 6 5 4 3 2 1 0 Access r/w r/w r/w x x x x x Function bit7 bit6 bit5 X X X X X Default Value 0 0 0 X X X X X 10 WRITE_PROTECT YES Bit5: 0 – Enables all writes as permitted in bit6 or bit7 1 – Disables all writes except the WRITE_PROTECT, OPERATION and ON_OFF_CONFIG (bit 6 and bit7 must be 0) Bit 6: 0 – Enables all writes as permitted in bit5 or bit7 1 – Disables all writes except for the WRITE_PROTECT and OPERATION commands (bit5 and bit7 must be 0) Bit7: 0 – Enables all writes as permitted in bit5 or bit6 1 – Disables all writes except for the WRITE_PROTECT command (bit5 and bit6 must be 0) Copies all current register settings in the module into non-volatile memory 11 STORE_DEFAULT_ALL (EEPROM) on the module. Takes about 50ms for the command to execute. Restores all current register settings in the module from values in the module 12 RESTORE_DEFAULT_ALL non-volatile memory (EEPROM) Copies the current register setting in the module whose command code matches the value in the data byte into non-volatile memory (EEPROM) on the module 13 STORE_DEFAULT_CODE Bit Position 7 6 5 4 3 2 1 0 Access w w w w w w w w Function Command code Restores the current register setting in the module whose command code matches the value in the data byte from the value in the module non-volatile memory (EEPROM) 14 RESTORE_DEFAULT_CODE Bit Position 7 6 5 4 3 2 1 0 Access w w w w w w w w Function Command code The module has MODE set to Linear and Exponent set to -10. These values cannot be changed Bit Position 7 6 5 4 3 2 1 0 20 VOUT_MODE Access r r r r r r r r Function Mode Exponent Default Value 0 0 0 1 0 1 1 0 September 24, 2014 ©2014 General Electric Company. All rights reserved. Page 25 Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensure a product will work properly and reliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/ge-energy-UDT020A0X-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om Data Sheet GE GE Critical Power UDT020A0X SERIES TM 20A Digital MicroDLynx : Non-Isolated DC-DC Power Modules 20 Amp POL DC-DC Converter 3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 20A Output Current Measures: 0.80 x 0.45 x 0.33” Table 6 (continued) Hex Non-Volatile Command Brief Description Code Memory Storage Apply a fixed offset voltage to the output voltage command value Format Linear, two’s complement binary Bit Position 7 6 5 4 3 2 1 0 Access r/w r r/w r/w r/w r/w r/w r/w Function High Byte 22 VOUT_TRIM YES Default Value 0 0 0 0 0 0 0 0 Bit Position 7 6 5 4 3 2 1 0 Access r/w r/w r/w r/w r/w r/w r/w r/w Function Low Byte Default Value 0 0 0 0 0 0 0 0 Sets the target voltage for margining the output high Format Linear, two’s complement binary Bit Position 7 6 5 4 3 2 1 0 Access r r/w r/w r/w r/w r/w r/w r/w Function High Byte 25 VOUT_MARGIN_HIGH YES Default Value 0 0 0 0 0 1 0 1 Bit Position 7 6 5 4 3 2 1 0 Access r/w r/w r/w r/w r/w r/w r/w r/w Function Low Byte Default Value 0 1 0 0 0 1 1 1 Sets the target voltage for margining the output low Format Linear, two’s complement binary Bit Position 7 6 5 4 3 2 1 0 Access r r/w r/w r/w r/w r/w r/w r/w Function High Byte 26 VOUT_MARGIN_LOW YES Default Value 0 0 0 0 0 1 0 0 Bit Position 7 6 5 4 3 2 1 0 Access r/w r/w r/w r/w r/w r/w r/w r/w Function Low Byte Default Value 0 1 0 1 0 0 0 1 Sets the scaling of the output voltage – equal to the feedback resistor divider ratio Format Linear, two’s complement binary Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r/w r/w Function Exponent Mantissa 29 VOUT_SCALE_LOOP YES Default Value 1 0 1 1 1 0 0 1 Bit Position 7 6 5 4 3 2 1 0 Access r/w r/w r/w r/w r/w r/w r/w r/w Function Mantissa Default Value 0 0 0 0 0 0 0 0 Sets the value of input voltage at which the module turns on Format Linear, two’s complement binary Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r r Function Exponent Mantissa 35 VIN_ON YES Default Value 1 1 1 1 0 0 0 0 Bit Position 7 6 5 4 3 2 1 0 Access r r/w r/w r/w r/w r/w r/w r/w Function Mantissa Default Value 0 0 0 0 1 0 1 1 September 24, 2014 ©2014 General Electric Company. All rights reserved. Page 26 Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensure a product will work properly and reliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/ge-energy-UDT020A0X-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om Data Sheet GE GE Critical Power UDT020A0X SERIES TM 20A Digital MicroDLynx : Non-Isolated DC-DC Power Modules 20 Amp POL DC-DC Converter 3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 20A Output Current Measures: 0.80 x 0.45 x 0.33” Table 6 (continued) Hex Non-Volatile Command Brief Description Code Memory Storage Sets the value of input voltage at which the module turns off Format Linear, two’s complement binary Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r r Function Exponent Mantissa 36 VIN_OFF YES Default Value 1 1 1 1 0 0 0 0 Bit Position 7 6 5 4 3 2 1 0 Access r r/w r/w r/w r/w r/w r/w r/w Function Mantissa Default Value 0 0 0 0 1 0 1 0 Returns the value of the gain correction term used to correct the measured output current Format Linear, two’s complement binary Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r r/w Function 38 IOUT_CAL_GAIN Exponent Mantissa YES Default Value 1 0 0 0 1 0 0 V Bit Position 7 6 5 4 3 2 1 0 Access r/w r/w r/w r/w r/w r/w r/w r/w Function Mantissa Default Value V: Variable based on factory calibration Returns the value of the offset correction term used to correct the measured output current Format Linear, two’s complement binary Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r/w r r Function Exponent Mantissa 39 IOUT_CAL_OFFSET YES Default Value 1 1 1 0 0 V 0 0 Bit Position 7 6 5 4 3 2 1 0 Access r r r/w r/w r/w r/w r/w r/w Function Mantissa Default Value 0 0 V: Variable based on factory calibration Sets the voltage level for an output overvoltage fault. Exponent is fixed at -10. Suggested value shown for 1.2Vo. Should be changed for different output voltage. Values can be 108%, 110%, 112% or 115% of output voltage Format Linear, two’s complement binary Bit Position 7 6 5 4 3 2 1 0 Access r r/w r/w r/w r/w r/w r/w r/w 40 VOUT_OV_FAULT_LIMIT YES Function High Byte Default Value 0 0 0 0 0 1 0 1 Bit Position 7 6 5 4 3 2 1 0 Access r/w r/w r/w r/w r/w r/w r/w r/w Function Low Byte Default Value 0 1 1 0 0 0 0 0 Instructs the module on what action to take in response to a output overvoltage fault Format Unsigned Binary Bit Position 7 6 5 4 3 2 1 0 41 VOUT_OV_FAULT_RESPONSE YES Access r/w r/w r/w r/w r/w r r r RSP RSP Function RS[2]RS[1]RS[0] X X X [1] [0] Default Value 1 1 1 1 1 1 0 0 September 24, 2014 ©2014 General Electric Company. All rights reserved. Page 27 Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensure a product will work properly and reliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/ge-energy-UDT020A0X-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om Data Sheet GE GE Critical Power UDT020A0X SERIES TM 20A Digital MicroDLynx : Non-Isolated DC-DC Power Modules 20 Amp POL DC-DC Converter 3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 20A Output Current Measures: 0.80 x 0.45 x 0.33” Table 6 (continued) Hex Non-Volatile Command Brief Description Code Memory Storage Sets the voltage level for an output undervoltage fault. Exponent is fixed at -10. Suggested value shown for 1.2Vo. Should be changed for different output voltage. Values can be 92%, 90%, 88% or 85% of output voltage Format Linear, two’s complement binary Bit Position 7 6 5 4 3 2 1 0 Access r r/w r/w r/w r/w r/w r/w r/w 44 VOUT_UV_FAULT_LIMIT YES Function High Byte Default Value 0 0 0 0 0 1 0 0 Bit Position 7 6 5 4 3 2 1 0 Access r/w r/w r/w r/w r/w r/w r/w r/w Function Low Byte Default Value 0 0 1 1 1 0 0 1 Instructs the module on what action to take in response to a output undervoltage fault Format Unsigned Binary Bit Position 7 6 5 4 3 2 1 0 45 VOUT_UV_FAULT_RESPONSE YES Access r/w r/w r/w r/w r/w r r r RSP RSP Function RS[2]RS[1]RS[0] X X X [1] [0] Default Value 0 0 0 0 0 1 0 0 Sets the output overcurrent fault level in A (cannot be changed) Format Linear, two’s complement binary Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r r Function Exponent Mantissa 46 IOUT_OC_FAULT_LIMIT YES Default Value Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r R Function Mantissa Default Value 0 0 1 1 0 1 0 0 Sets the output overcurrent warning level in A Format Linear, two’s complement binary Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r r Function Exponent Mantissa 4A IOUT_OC_WARN_LIMIT YES Default Value 1 1 1 1 1 0 0 0 Bit Position 7 6 5 4 3 2 1 0 Access r r r/w r/w r/w r/w r/w r/w Function Mantissa Default Value 0 0 1 1 0 0 1 0 Sets the output voltage level at which the PGOOD pin is asserted high Format Linear, two’s complement binary Bit Position 7 6 5 4 3 2 1 0 Access r r/w r/w r/w r/w r/w r/w r/w Function High Byte 5E POWER_GOOD_ON YES Default Value 0 0 0 0 0 1 0 0 Bit Position 7 6 5 4 3 2 1 0 Access r/w r/w r/w r/w r/w r/w r/w r/w Function Low Byte Default Value 0 1 1 0 1 0 1 0 September 24, 2014 ©2014 General Electric Company. All rights reserved. Page 28 Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensure a product will work properly and reliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/ge-energy-UDT020A0X-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om Data Sheet GE GE Critical Power UDT020A0X SERIES TM 20A Digital MicroDLynx : Non-Isolated DC-DC Power Modules 20 Amp POL DC-DC Converter 3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 20A Output Current Measures: 0.80 x 0.45 x 0.33” Table 6 (continued) Hex Non-Volatile Command Brief Description Code Memory Storage Sets the output voltage level at which the PGOOD pin is de-asserted low Format Linear, two’s complement binary Bit Position 7 6 5 4 3 2 1 0 Access r r/w r/w r/w r/w r/w r/w r/w Function High Byte 5F POWER_GOOD_OFF YES Default Value 0 0 0 0 0 1 0 0 Bit Position 7 6 5 4 3 2 1 0 Access r/w r/w r/w r/w r/w r/w r/w r/w Function Low Byte Default Value 0 1 0 1 0 0 1 0 Sets the rise time of the output voltage during startup Format Linear, two’s complement binary Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r r/w Function Exponent Mantissa 61 TON_RISE YES Default Value 1 1 1 0 0 0 0 0 Bit Position 7 6 5 4 3 2 1 0 Access r/w r/w r/w r/w r/w r/w r/w r/w Function Mantissa Default Value 0 0 1 0 1 0 1 0 Returns one byte of information with a summary of the most critical module faults Format Unsigned Binary Bit Position 7 6 5 4 3 2 1 0 78 STATUS_BYTE Access r r r r r r r r VOUT IOUT_ VIN_U OTHE Flag X OFF TEMP CML _OV OC V R Default Value 0 0 0 0 0 0 0 0 Returns two bytes of information with a summary of the module’s fault/warning conditions Format Unsigned binary Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r r IOUT_ PGOO Flag VOUT X X X X X OC D 79 STATUS_WORD Default Value 0 0 0 0 0 0 0 0 Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r r VOUT IOUT_ VIN_U OTHE Flag X OFF TEMP CML _OV OC V R Default Value 0 0 0 0 0 0 0 0 Returns one byte of information with the status of the module’s output voltage related faults Format Unsigned Binary Bit Position 7 6 5 4 3 2 1 0 7A STATUS_VOUT Access r r r r r r r r Flag VOUT_OV X X VOUT_UV X X X X Default Value 0 0 0 0 0 0 0 0 Returns one byte of information with the status of the module’s output current related faults Format Unsigned Binary Bit Position 7B STATUS_IOUT 7 6 5 4 3 2 1 0 Access r r r r r r r r Flag IOUT_OC X IOUT_OC_WARN X X X X X Default Value 0 0 0 0 0 0 0 0 September 24, 2014 ©2014 General Electric Company. All rights reserved. Page 29 Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensure a product will work properly and reliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/ge-energy-UDT020A0X-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om Data Sheet GE GE Critical Power UDT020A0X SERIES TM 20A Digital MicroDLynx : Non-Isolated DC-DC Power Modules 20 Amp POL DC-DC Converter 3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 20A Output Current Measures: 0.80 x 0.45 x 0.33” Table 6 (continued) Hex Non-Volatile Command Brief Description Code Memory Storage Returns one byte of information with the status of the module’s temperature related faults Format Unsigned Binary Bit Position 7 6 5 4 3 2 1 0 7D STATUS_TEMPERATURE Access r r r r r r r r Flag OT_FAULT OT_WARN X X X X X X Default Value 0 0 0 0 0 0 0 0 Returns one byte of information with the status of the module’s communication related faults Format Unsigned Binary Bit Position 7 6 5 4 3 2 1 0 7E STATUS_CML Access r r r r r r r r Other Invalid Invalid PEC Flag X X X Comm X Command Data Fail Fault Default Value 0 0 0 0 0 0 0 0 Returns the value of the input voltage applied to the module Format Linear, two’s complement binary Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r r Function Exponent Mantissa 88 READ_VIN Default Value 1 1 0 1 1 0 0 0 Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r r Function Mantissa Default Value 0 0 0 0 0 0 0 0 Returns the value of the output voltage of the module Format Linear, two’s complement binary Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r r Function Mantissa 8B READ_VOUT Default Value 0 0 0 0 0 0 0 0 Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r r Function Mantissa Default Value 0 0 0 0 0 0 0 0 Returns the value of the output current of the module Format Linear, two’s complement binary Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r r Function Exponent Mantissa 8C READ_IOUT Default Value 1 1 1 0 0 0 0 0 Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r r Function Mantissa Default Value 0 0 0 0 0 0 0 0 Returns one byte indicating the module is compliant to PMBus Spec. 1.1 (read only) Format Unsigned Binary 98 PMBUS_REVISION YES Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r r Default Value 0 0 0 1 0 0 0 1 September 24, 2014 ©2014 General Electric Company. All rights reserved. Page 30 Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensure a product will work properly and reliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/ge-energy-UDT020A0X-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om Data Sheet GE GE Critical Power UDT020A0X SERIES TM 20A Digital MicroDLynx : Non-Isolated DC-DC Power Modules 20 Amp POL DC-DC Converter 3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 20A Output Current Measures: 0.80 x 0.45 x 0.33” Table 6 (continued) Hex Non-Volatile Command Brief Description Code Memory Storage Returns the minimum input voltage the module is specified to operate at (read only) Format Linear, two’s complement binary Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r r Function Exponent Mantissa A0 MFR_VIN_MIN YES Default Value 1 1 1 1 0 0 0 0 Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r r Function Mantissa Default Value 0 0 0 0 1 1 0 0 Returns the minimum output voltage possible from the module (read only) Format Linear, two’s complement binary Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r r Function Exponent Mantissa A4 MFR_VOUT_MIN YES Default Value 0 0 0 0 0 0 1 0 Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r r Function Mantissa Default Value 0 1 1 0 0 1 1 0 Returns module name information (read only) Format Unsigned Binary Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r r Function Reserved D0 MFR_SPECIFIC_00 YES Default Value 1 1 1 0 1 0 0 0 Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r r Function Module Name Reserved Default Value 0 0 0 0 1 0 1 0 Applies an offset to the READ_VOUT command results to calibrate out offset errors in module measurements of the output voltage (between -125mV and +124mV) Format Linear, two’s complement binary Bit Position 7 6 5 4 3 2 1 0 Access r/w r r r r r r r Function D4 VOUT_CAL_OFFSET Mantissa YES Default Value V 0 0 0 0 0 0 0 Bit Position 7 6 5 4 3 2 1 0 Access r r/w r/w r/w r/w r/w r/w r/w Function Mantissa Default Value V V V V V V V V Applies a gain correction to the READ_VOUT command results to calibrate out gain errors in module measurements of the output voltage (between -0.125 and 0.121) Format Linear, two’s complement binary Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r/w r r Function D5 VOUT_CAL_GAIN Exponent Mantissa YES Default Value 1 1 0 0 0 0 0 V Bit Position 7 6 5 4 3 2 1 0 Access r r r r/w r/w r/w r/w r/w Function Mantissa Default Value V V V V V V V V September 24, 2014 ©2014 General Electric Company. All rights reserved. Page 31 Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensure a product will work properly and reliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/ge-energy-UDT020A0X-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om Data Sheet GE GE Critical Power UDT020A0X SERIES TM 20A Digital MicroDLynx : Non-Isolated DC-DC Power Modules 20 Amp POL DC-DC Converter 3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 20A Output Current Measures: 0.80 x 0.45 x 0.33” Table 6 (continued) Hex Non-Volatile Command Brief Description Code Memory Storage Applies an offset correction to the READ_VIN command results to calibrate out offset errors in module measurements of the input voltage (between -2V and +1.968V) Format Linear, two’s complement binary Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r/w r D6 VIN_CAL_OFFSET Function Exponent Mantissa YES Default Value 1 1 0 1 V 0 0 V Bit Position 7 6 5 4 3 2 1 0 Access r r r/w r/w r/w r/w r/w r/w Function Mantissa Default Value 0 0 V V V V V V Applies a gain correction to the READ_VIN command results to calibrate out gain errors in module measurements of the input voltage (between -0.125 and 0.121) Format Linear, two’s complement binary Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r/w r r Function D7 VIN_CAL_GAIN Exponent Mantissa YES Default Value 1 1 0 0 V 0 0 V Bit Position 7 6 5 4 3 2 1 0 Access r r r r/w r/w r/w r/w r/w Function Mantissa Default Value 0 0 0 V V V V V September 24, 2014 ©2014 General Electric Company. All rights reserved. Page 32 Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensure a product will work properly and reliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/ge-energy-UDT020A0X-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om Data Sheet GE GE Critical Power UDT020A0X SERIES TM 20A Digital MicroDLynx : Non-Isolated DC-DC Power Modules 20 Amp POL DC-DC Converter 3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 20A Output Current Measures: 0.80 x 0.45 x 0.33” Thermal Considerations The thermal reference points, Tref used in the specifications Power modules operate in a variety of thermal are also shown in Figure 49. For reliable operation the environments; however, sufficient cooling should always be o temperatures at these points should not exceed 120 C. The provided to help ensure reliable operation. output power of the module should not exceed the rated Considerations include ambient temperature, airflow, power of the module (Vo,set x Io,max). module power dissipation, and the need for increased Please refer to the Application Note “Thermal reliability. A reduction in the operating temperature of the Characterization Process For Open-Frame Board- module will result in an increase in reliability. The thermal Mounted Power Modules” for a detailed discussion data presented here is based on physical measurements taken in a wind tunnel. The test set-up is shown in Figure of thermal aspects including maximum device 48. The preferred airflow direction for the module is in temperatures. Figure 49. 25.4_ Wind Tunnel (1.0) PWBs Power Module Figure 49. Preferred airflow direction and location of hot- 76.2_ spot of the module (Tref). (3.0) x Probe Location for measuring 12.7_ airflow and (0.50) ambient temperature Air flow Figure 48. Thermal Test Setup. September 24, 2014 ©2014 General Electric Company. All rights reserved. Page 33 Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensure a product will work properly and reliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/ge-energy-UDT020A0X-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om Data Sheet GE GE Critical Power UDT020A0X SERIES TM 20A Digital MicroDLynx : Non-Isolated DC-DC Power Modules 20 Amp POL DC-DC Converter 3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 20A Output Current Measures: 0.80 x 0.45 x 0.33” Shock and Vibration The ruggedized (-D version) of the modules are designed to withstand elevated levels of shock and vibration to be able to operate in harsh environments. The ruggedized modules have been successfully tested to the following conditions: Non operating random vibration: Random vibration tests conducted at 25C, 10 to 2000Hz, for 30 minutes each level, starting from 30Grms (Z axis) and up to 50Grms (Z axis). The units were then subjected to two more tests of 50Grms at 30 minutes each for a total of 90 minutes. Operating shock to 40G per Mil Std. 810F, Method 516.4 Procedure I: The modules were tested in opposing directions along each of three orthogonal axes, with waveform and amplitude of the shock impulse characteristics as follows: All shocks were half sine pulses, 11 milliseconds (ms) in duration in all 3 axes. Units were tested to the Functional Shock Test of MIL-STD-810, Method 516.4, Procedure I - Figure 516.4-4. A shock magnitude of 40G was utilized. The operational units were subjected to three shocks in each direction along three axes for a total of eighteen shocks. Operating vibration per Mil Std 810F, Method 514.5 Procedure I: The ruggedized (-D version) modules are designed and tested to vibration levels as outlined in MIL-STD-810F, Method 514.5, and Procedure 1, using the Power Spectral Density (PSD) profiles as shown in Table 7 and Table 8 for all axes. Full compliance with performance specifications was required during the performance test. No damage was allowed to the module and full compliance to performance specifications was required when the endurance environment was removed. The module was tested per MIL-STD- 810, Method 514.5, Procedure I, for functional (performance) and endurance random vibration using the performance and endurance levels shown in Table 7 and Table 8 for all axes. The performance test has been split, with one half accomplished before the endurance test and one half after the endurance test (in each axis). The duration of the performance test was at least 16 minutes total per axis and at least 120 minutes total per axis for the endurance test. The endurance test period was 2 hours minimum per axis. Table 7: Performance Vibration Qualification - All Axes PSD Level PSD Level PSD Level Frequency (Hz) Frequency (Hz) Frequency (Hz) (G2/Hz) (G2/Hz) (G2/Hz) 10 1.14E-03 170 2.54E-03 690 1.03E-03 30 5.96E-03 230 3.70E-03 800 7.29E-03 40 9.53E-04 290 7.99E-04 890 1.00E-03 50 2.08E-03 340 1.12E-02 1070 2.67E-03 90 2.08E-03 370 1.12E-02 1240 1.08E-03 110 7.05E-04 430 8.84E-04 1550 2.54E-03 130 5.00E-03 490 1.54E-03 1780 2.88E-03 140 8.20E-04 560 5.62E-04 2000 5.62E-04 Table 8: Endurance Vibration Qualification - All Axes PSD Level PSD Level PSD Level Frequency (Hz) Frequency (Hz) Frequency (Hz) (G2/Hz) (G2/Hz) (G2/Hz) 10 0.00803 170 0.01795 690 0.00727 30 0.04216 230 0.02616 800 0.05155 40 0.00674 290 0.00565 890 0.00709 50 0.01468 340 0.07901 1070 0.01887 90 0.01468 370 0.07901 1240 0.00764 110 0.00498 430 0.00625 1550 0.01795 130 0.03536 490 0.01086 1780 0.02035 140 0.0058 560 0.00398 2000 0.00398 September 24, 2014 ©2014 General Electric Company. All rights reserved. Page 34 Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensure a product will work properly and reliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/ge-energy-UDT020A0X-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om Data Sheet GE GE Critical Power UDT020A0X SERIES TM 20A Digital MicroDLynx : Non-Isolated DC-DC Power Modules 20 Amp POL DC-DC Converter 3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 20A Output Current Measures: 0.80 x 0.45 x 0.33” Example Application Circuit Requirements: Vin: 12V Vout: 1.8V Iout: 15A max., worst case load transient is from 10A to 15A ΔVout: 1.5% of Vout (27mV) for worst case load transient Vin, ripple 1.5% of Vin (180mV, p-p) Vout+ Vin+ VIN VOUT VS+ PGOOD RTUNE MODULE SEQ CTUNE TRIM CI3 CI2 CI1 CO3 CO1 CO2 DATA ADDR0 SMBALRT# RTrim ADDR1 ON/OFF RADDR1 RADDR0 SIG_GND SYNC GND VS- GND CI1 Decoupling cap - 1x0.047μF/16V ceramic capacitor (e.g. Murata LLL185R71C473MA01) CI2 3x22μF/16V ceramic capacitor (e.g. Murata GRM32ER61C226KE20) CI3 47μF/16V bulk electrolytic CO1 Decoupling cap - 1x0.047μF/16V ceramic capacitor (e.g. Murata LLL185R71C473MA01) CO2 N.A. CO3 3 x 330μF/6.3V Polymer (e.g. Sanyo Poscap) CTune 4700pF ceramic capacitor (can be 1206, 0805 or 0603 size) RTune 330 ohms SMT resistor (can be 1206, 0805 or 0603 size) RTrim 10kΩ SMT resistor (can be 1206, 0805 or 0603 size, recommended tolerance of 0.1%) Note: The DATA, CLK and SMBALRT pins do not have any pull-up resistors inside the module. Typically, the SMBus master controller will have the pull-up resistors as well as provide the driving source for these signals. September 24, 2014 ©2014 General Electric Company. All rights reserved. Page 35 Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensure a product will work properly and reliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/ge-energy-UDT020A0X-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om Data Sheet GE GE Critical Power UDT020A0X SERIES TM 20A Digital MicroDLynx : Non-Isolated DC-DC Power Modules 20 Amp POL DC-DC Converter 3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 20A Output Current Measures: 0.80 x 0.45 x 0.33” Mechanical Outline Dimensions are in millimeters and (inches). Tolerances: x.x mm ± 0.5 mm (x.xx in. ± 0.02 in.) [unless otherwise indicated] x.xx mm ± 0.25 mm (x.xxx in ± 0.010 in.) PIN FUNCTION PIN FUNCTION 1 1 ON/OFF 10 SYNC 2 VIN 11 CLK 3 SEQ 12 DATA 4 GND 13 SMBALERT# 5 TRIM 14 SIG_GND 6 VOUT 15 ADDR1 7 VS+ 16 ADDR0 8 VS- 9 PG 1 If unused, connect to Ground. September 24, 2014 ©2014 General Electric Company. All rights reserved. Page 36 Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensure a product will work properly and reliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/ge-energy-UDT020A0X-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om Data Sheet GE GE Critical Power UDT020A0X SERIES TM 20A Digital MicroDLynx : Non-Isolated DC-DC Power Modules 20 Amp POL DC-DC Converter 3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 20A Output Current Measures: 0.80 x 0.45 x 0.33” Recommended Pad Layout Dimensions are in millimeters and (inches). Tolerances: x.x mm ± 0.5 mm (x.xx in. ± 0.02 in.) [unless otherwise indicated] x.xx mm ± 0.25 mm (x.xxx in ± 0.010 in.) PIN FUNCTION PIN FUNCTION 2 1 ON/OFF 10 SYNC 2 VIN 11 CLK 3 SEQ 12 DATA 4 GND 13 SMBALERT# 5 TRIM 14 SIG_GND 6 VOUT 15 ADDR1 7 VS+ 16 ADDR0 8 VS- 9 PG 2 If unused, connect to Ground. September 24, 2014 ©2014 General Electric Company. All rights reserved. Page 37 Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensure a product will work properly and reliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/ge-energy-UDT020A0X-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om Data Sheet GE GE Critical Power UDT020A0X SERIES TM 20A Digital MicroDLynx : Non-Isolated DC-DC Power Modules 20 Amp POL DC-DC Converter 3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 20A Output Current Measures: 0.80 x 0.45 x 0.33” Packaging Details TM The 12V Digital MicroDLynx 20A modules are supplied in tape & reel as standard. Modules are shipped in quantities of 200 modules per reel. All Dimensions are in millimeters and (in inches). Reel Dimensions: Outside Dimensions: 330.2 mm (13.00) Inside Dimensions: 177.8 mm (7.00”) Tape Width: 44.00 mm (1.732”) September 24, 2014 ©2014 General Electric Company. All rights reserved. Page 38 Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensure a product will work properly and reliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/ge-energy-UDT020A0X-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om Data Sheet GE GE Critical Power UDT020A0X SERIES TM 20A Digital MicroDLynx : Non-Isolated DC-DC Power Modules 20 Amp POL DC-DC Converter 3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 20A Output Current Measures: 0.80 x 0.45 x 0.33” Devices). Moisture barrier bags (MBB) with desiccant are Surface Mount Information required for MSL ratings of 2 or greater. These sealed packages should not be broken until time of use. Once the Pick and Place original package is broken, the floor life of the product at TM conditions of ≤ 30°C and 60% relative humidity varies The 20A Digital MicroDLynx modules use an open frame according to the MSL rating (see J-STD-033A). The shelf life construction and are designed for a fully automated for dry packed SMT packages will be a minimum of 12 assembly process. The modules are fitted with a label months from the bag seal date, when stored at the following designed to provide a large surface area for pick and place conditions: < 40° C, < 90% relative humidity. operations. The label meets all the requirements for surface mount processing, as well as safety standards, and is able 300 o Per J-STD-020 Rev. C to withstand reflow temperatures of up to 300 C. The label Peak Temp 260°C also carries product information such as product code, 250 serial number and the location of manufacture. Cooling 200 Zone * Min. Time Above 235°C Nozzle Recommendations 15 Seconds 150 Heating Zone The module weight has been kept to a minimum by using *Time Above 217°C 1°C/Second 60 Seconds open frame construction. Variables such as nozzle size, tip 100 style, vacuum pressure and placement speed should be considered to optimize this process. The minimum 50 recommended inside nozzle diameter for reliable operation is 3mm. The maximum nozzle outer diameter, which will 0 Reflow Time (Seconds) safely fit within the allowable component spacing, is 7 mm. Figure 50. Recommended linear reflow profile using Bottom Side / First Side Assembly Sn/Ag/Cu solder. This module is not recommended for assembly on the bottom side of a customer board. If such an assembly is Post Solder Cleaning and Drying Considerations attempted, components may fall off the module during the Post solder cleaning is usually the final circuit-board second reflow process. assembly process prior to electrical board testing. The result Lead Free Soldering of inadequate cleaning and drying can affect both the reliability of a power module and the testability of the The modules are lead-free (Pb-free) and RoHS compliant finished circuit-board assembly. For guidance on and fully compatible in a Pb-free soldering process. Failure appropriate soldering, cleaning and drying procedures, refer to observe the instructions below may result in the failure of to Board Mounted Power Modules: Soldering and Cleaning or cause damage to the modules and can adversely affect Application Note (AN04-001). long-term reliability. Pb-free Reflow Profile Power Systems will comply with J-STD-020 Rev. C (Moisture/Reflow Sensitivity Classification for Nonhermetic Solid State Surface Mount Devices) for both Pb-free solder profiles and MSL classification procedures. This standard provides a recommended forced-air-convection reflow profile based on the volume and thickness of the package (table 4-2). The suggested Pb-free solder paste is Sn/Ag/Cu (SAC). For questions regarding Land grid array(LGA) soldering, solder volume; please contact GE for special manufacturing process instructions. The recommended linear reflow profile using Sn/Ag/Cu solder is shown in Fig. 50. Soldering outside of the recommended profile requires testing to verify results and performance. MSL Rating TM The 20A Digital MicroDLynx modules have a MSL rating of 2a. Storage and Handling The recommended storage environment and handling procedures for moisture-sensitive surface mount packages is detailed in J-STD-033 Rev. A (Handling, Packing, Shipping and Use of Moisture/Reflow Sensitive Surface Mount September 24, 2014 ©2014 General Electric Company. All rights reserved. Page 39 Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensure a product will work properly and reliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/ge-energy-UDT020A0X-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om Reflow Temp (°C) Data Sheet GE GE Critical Power UDT020A0X SERIES TM 20A Digital MicroDLynx : Non-Isolated DC-DC Power Modules 20 Amp POL DC-DC Converter 3Vdc –14.4Vdc input; 0.45Vdc to 5.5Vdc output; 20A Output Current Measures: 0.80 x 0.45 x 0.33” Ordering Information Please contact your GE Sales Representative for pricing, availability and optional features. Table 9. Device Codes Input Output Output On/Off Device Code Sequencing Comcodes Voltage Range Voltage Current Logic UDT020A0X3-SRZ 3 – 14.4Vdc 0.45 – 5.5Vdc 20A Negative Yes CC109159728 UDT020A0X3-SRDZ 3 – 14.4Vdc 0.45 – 5.5Vdc 20A Negative Yes CC109168745 UDT020A0X43-SRZ 3 – 14.4Vdc 0.45 – 5.5Vdc 20A Positive Yes CC109159736 -Z refers to RoHS compliant parts Table 10. Coding Scheme Package Family Sequencing Output Output On/Off Remote ROHS Identifier Option current voltage logic Sense Options Compliance U D T 020A0 X 3 -SR -D Z D = 105°C Z = ROHS6 P=Pico D=Dlynx T=with EZ 20A X = 4 = 3 = S = Digital Sequence programm positive Remote Surface operating U=Micro able output Sense Mount ambient, V = X=without No entry 40G M=Mega DLynx sequencing = R = operating Analog. negative Tape & G=Giga shock as Reel per MIL Std 810F GE Digital Non-Isolated DC-DC products use technology licensed from Power-One, protected by US patents: US20040246754, US2004090219A1, US2004093533A1, US2004123164A1, US2004123167A1, US2004178780A1, US2004179382A1, US20050200344, US20050223252, US2005289373A1, US20060061214, US2006015616A1, US20060174145, US20070226526, US20070234095, US20070240000, US20080052551, US20080072080, US20080186006, US6741099, US6788036, US6936999, US6949916, US7000125, US7049798, US7068021, US7080265, US7249267, US7266709, US7315156, US7372682, US7373527, US7394445, US7456617, US7459892, US7493504, US7526660. Outside the US the Power-One licensed technology is protected by patents: AU3287379AA, AU3287437AA, AU3290643AA, AU3291357AA, CN10371856C, CN1045261OC, CN10458656C, CN10459360C, CN10465848C, CN11069332A, CN11124619A, CN11346682A, CN1685299A, CN1685459A, CN1685582A, CN1685583A, CN1698023A, CN1802619A, EP1561156A1, EP1561268A2, EP1576710A1, EP1576711A1, EP1604254A4, EP1604264A4, EP1714369A2, EP1745536A4, EP1769382A4, EP1899789A2, EP1984801A2, W004044718A1, W004045042A3, W004045042C1, W004062061 A1, W004062062A1, W004070780A3, W004084390A3, W004084391A3, W005079227A3, W005081771A3, W006019569A3, W02007001584A3, W02007094935A3 Contact Us For more information, call us at USA/Canada: +1 888 546 3243, or +1 972 244 9288 Asia-Pacific: +86.021.54279977*808 Europe, Middle-East and Africa: +49.89.878067-280 India: +91.80.28411633 www.gecriticalpower.com GE Critical Power reserves the right to make changes to the product(s) or information contained herein without notice, and no liability is assumed as a result of their use or application. No rights under any patent accompany the sale of any such product(s) or information. September 24, 2014 ©2014 General Electric Company. All International rights reserved. Version 1.13 Specifications are subject to change without notice. It is responsibility of each customer to thoroughly test each product and part number under their unique parameters and environments to ensure a product will work properly and reliably. Click below for more details, to buy on-line or request volume pricing: (866) 588-1750 power@sager .com http://power.sager.com/ge-energy-UDT020A0X-dc-dc-converter.html h t t p: / / pow e r. sa ge r. c om