Datasheet GE TM 2 × 6A Digital Dual Output MicroDLynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 6A Output Current Features  Compliant to RoHS II EU “Directive 2011/65/EU”  Compliant to IPC-9592 (September 2008), Category 2, Class II  Compatible in a Pb-free or SnPb reflow environment (Z versions)  Compliant to REACH Directive (EC) No 1907/2006  Wide Input voltage range (4.5Vdc-14.4Vdc) on both inputs  Each Output voltage programmable from 0.6Vdc to 5.5Vdc via external resistor. Digitally adjustable down to 0.51Vdc TM #  Digital interface through the PMBus protocol RoHS Compliant TM  Tunable Loop to optimize dynamic output voltage response  Power Good signal for each output Applications  Fixed switching frequency with capability of external synchronization  Distributed power architectures  180° Out-of-phase inputs to reduce input ripple  Intermediate bus voltage applications  Output overcurrent protection (non-latching)  Telecommunications equipment  Output Overvoltage protection  Servers and storage applications  Over temperature protection  Networking equipment  Remote On/Off  Ability to sink and source current  Industrial equipment  Start up into Pre-biased output Vin+ Vout+ VIN1 VOUT1 VS+1  Cost efficient open frame design PGOOD1 RTUNE1 MODULE  Small size: 20.32 mm x 11.43 mm x 8.5 mm SYNC CTUNE2 CLK CI3 CI2 CI1 TRIM1 (0.8 in x 0.45 in x 0.335 in) CO1 CO2 DATA ADDR0 SMBALRT# RTrim1  Wide operating temperature range [-40°C to ADDR1 ON/OFF1 RADDR1 RADDR0 105°C(Ruggedized: -D), 85°C(Regular)] SIG_GND  Ruggedized (-D) version able to withstand high levels of PGND PGND GND shock and vibration RTrim2 ON/OFF2 TRIM2 nd †  UL* 60950-1 2 Ed. Recognized, CSA C22.2 No. 60950-1-07 PGOOD2 RTUNE2 ‡ nd Certified, and VDE (EN60950-1 2 Ed.) Licensed CO3 CO4 CTUNE2 VS+2  ISO** 9001 and ISO 14001 certified manufacturing facilities VIN2 VOUT2 Description TM The 2 × 6A Digital Dual MicroDlynx power modules are non-isolated dc-dc converters that can deliver up to 2 × 6A of output current. These modules operate over a wide range of input voltage (V = 4.5Vdc-14.4Vdc) and provide precisely regulated output IN voltages from 0.51Vdc to 5.5Vdc, programmable via an external resistor and PMBus control. Features include a digital interface using the 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) September 19, 2016 ©2015 General Electric Company. All rights reserved. Datasheet GE TM 2 × 6A Digital Dual MicroDlynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 6A Output Current 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 VIN1 and VIN2 -0.3 15 V Continuous VS+1, VS+2, SMBALERT# All -0.3 7 V CLK, DATA, SYNC, All -0.3 3.6 V Operating Ambient Temperature All TA -40 85 °C (see Thermal Considerations section) -D Version TA -40 105 °C 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 V and IN1 Operating Input Voltage All 4.5  14.4 Vdc VIN2 I IN1,max & Maximum Input Current All 12 Adc IIN2,max (V =3V to 14.4V, I =I ) IN O O, max IIN1,No load & VO,set = 0.6 Vdc 40 mA I Input No Load Current IN2,No load (VIN = 12Vdc, IO = 0, module enabled) I & IN,1No load VO,set = 5.5Vdc 140 mA I IN2,No load Input Stand-by Current IIN1,stand-by & All 14 mA (V = 12Vdc, module disabled) I IN IN2,stand-by 2 2 2 Inrush Transient All I t & I t 1 A s 1 2 Input Reflected Ripple Current, peak-to-peak Both (5Hz to 20MHz, 1μH source impedance; V =4.5 to 14V All 25 mAp-p IN , Inputs IO= IOmax ; See Test Configurations) Both Input Ripple Rejection (120Hz) All -68 dB Inputs September 19, 2016 ©2015 General Electric Company. All rights reserved. Page 2 Datasheet GE TM 2 × 6A Digital Dual MicroDlynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 6A Output Current Electrical Specifications (continued) Parameter Device Symbol Min Typ Max Unit Output Voltage Set-point (with 0.1% tolerance for external VO1, set & VO2, % VO, All -1.0 +1.0 resistor used to set output voltage) set set Output Voltage (Over all operating input voltage, resistive load, Vo1, set & VO2, % VO, All -3.0  +3.0 and temperature conditions until end of life) set set Adjustment Range (selected by an external resistor) (Some output voltages may not be possible depending on the All VO1 & VO2 0.6* 5.5 Vdc input voltage – see Feature Descriptions Section) *0.51V possible through PMBus command PMBus Adjustable Output Voltage Range All V ,adj, V ,adj -15 0 +10 %V O1 O2 O,set PMBus Output Voltage Adjustment Step Size All Both outputs 0.4 %VO,set Remote Sense Range All Both outputs 0.5 Vdc Output Regulation (for VO ≥ 2.5Vdc) Both Outputs Line (V =V to V ) All Both Outputs +0.4 % V IN IN, min IN, max  O, set Load (I =I to I ) All Both Outputs 10 mV O O, min O, max  Output Regulation (for V < 2.5Vdc) O Line (V =V to V ) All Both Outputs  5 mV IN IN, min IN, max Load (IO=IO, min to IO, max) All Both Outputs  10 mV Temperature (Tref=TA, min to TA, max) All Both Outputs  0.4 % VO, set Input Noise on nominal output at 25°C (VIN=VIN, nom and IO=IO, min to IO, max Cin = 2x1x4.7nF(or equiv.) + 2x2x22uFceramic + 2x470uFelectrolytic Peak-to-Peak (Full Bandwidth) All Both Inputs  360 mVpk-pk Output Ripple and Noise on nominal output at 25°C (VIN=VIN, nom and IO=IO, min to IO, max Co = 2×4.7nF + 2×47uF per output) Peak-to-Peak (5Hz to 20MHz bandwidth) All  50 mVpk-pk RMS (5Hz to 20MHz bandwidth) All 30 mVrms Output Ripple and Noise on nominal output at 25°C (VIN=VIN, nom and IO=IO, min to IO, max Co = 2x4.7nF (or equiv) + 2x47uF per output) Peak-to-Peak (Full bandwidth)(Vo≤1.2Vo) Both Outputs 30 mVpk-pk Peak-to-Peak (Full bandwidth)(Vo>1.2Vo) Both Outputs 3%Vo mVpk-pk RMS (Full bandwidth) All Both Outputs 30 mVrms 1 External Capacitance TM Without the Tunable Loop ESR ≥ 1 mΩ All C 1×47  2×47 μF O, max TM With the Tunable Loop ESR ≥ 0.15 mΩ All CO, max  1000 μF ESR ≥ 10 mΩ All C 5000 μF O, max  Output Current (in either sink or source mode) All Io 0 6 x 2 Adc Output Current Limit Inception (Hiccup Mode) All IO, lim 150 % Io,max (current limit does not operate in sink mode) Output Short-Circuit Current All I , I 5 Arms O1, s/c O1, s/c (V ≤250mV) ( Hiccup Mode ) O 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 transient TM response. See the Tunable Loop section for details. September 19, 2016 ©2015 General Electric Company. All rights reserved. Page 3 Datasheet GE TM 2 × 6A Digital Dual MicroDlynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 6AOutput Current Electrical Specifications (continued) Parameter Device Symbol Min Typ Max Unit Efficiency V = 0.6Vdc η , η 79.3 % O,set 1 2 VIN= 12Vdc, TA=25°C VO, set = 1.2Vdc η 1, η 2 87.3 % IO=IO, max , VO= VO,set VO,set = 1.8Vdc η 1, η 2 90.3 % V = 2.5Vdc η , η 92.1 % O,set 1 2 VO, set = 3.3Vdc η 1, η 2 93.3 % V = 5.0Vdc η , η 94.8 % O,set 1 2 Switching Frequency All fsw  500  kHz Frequency Synchronization All Synch Frequency (2 x fswitch) 1000 kHz Synchronization Frequency Range All -5% +5% High-Level Input Voltage All VIH 2.0 V Low-Level Input Voltage All VIL 0.4 V 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 (I =0.8I , T =40°C) Telecordia Issue 3 O O, max A All 87,926,219 Hours Method I Case 3 Weight  4.5 (0.16)  g (oz.) Feature Specifications Unless otherwise indicated, specifications apply over all 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 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 IIH1, IIH2 ― ― 1 mA Input High Voltage All VIH1, VIH2 2 ― V Vdc IN, max Logic Low (Module ON) Input low Current All IIL1, IIL2 ― ― 20 μA Input Low Voltage All VIL1, VIL2 -0.2 ― 0.6 Vdc Turn-On Delay and Rise Times (VIN=VIN, nom, IO=IO, max , VO to within ±1% of steady state) Case 1: On/Off input is enabled and then input power is applied (delay from instant at which V = V until Vo = All Tdelay1, Tdelay2 ― 2 ― msec IN IN, min 10% of Vo, set) September 19, 2016 ©2015 General Electric Company. All rights reserved. Page 4 Datasheet GE TM 2 × 6A Digital Dual MicroDlynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 6A Output Current Feature Specifications (cont.) Parameter Device Symbol Min Typ Max Unit Case 2: Input power is applied for at least one second and Tdelay1, then the On/Off input is enabled (delay from instant at All ― 800 ― μsec Tdelay2 which Von/Off is enabled until Vo = 10% of Vo, set) Output voltage Rise time (time for Vo to rise from All Trise1, Trise2 ― 6 ― msec 10% of Vo, set to 90% of Vo, set) o Output voltage overshoot (TA = 25 C V = V to V ,I = I to I ) Both Outputs 3.0 % V IN IN, min IN, max O O, min O, max O, set With or without maximum external capacitance Over Temperature Protection All T 120 °C ref (See Thermal Considerations section) PMBus Over Temperature Warning Threshold* All TWARN 115 °C Input Undervoltage Lockout Turn-on Threshold All Both Inputs 4.5 Vdc Turn-off Threshold All Both Inputs 4.25 Vdc Hysteresis All Both Inputs 0.15 0.2 Vdc PMBus Adjustable Input Under Voltage Lockout Thresholds All Both Inputs 4 14 Vdc Resolution of Adjustable Input Under Voltage Threshold All Both Inputs 250 mV PGOOD (Power Good) Signal Interface Open Drain, V  5VDC supply Overvoltage threshold for PGOOD ON All Both Outputs 108.33 %VO, set Overvoltage threshold for PGOOD OFF All Both Outputs 112.5 %VO, set Undervoltage threshold for PGOOD ON All Both Outputs 91.67 %V O, set Undervoltage threshold for PGOOD OFF All Both Outputs 87.5 %V O, set Pulldown resistance of PGOOD pin All Both Outputs 40 70  Sink current capability into PGOOD pin All Both Outputs 5 mA * Over temperature Warning – Warning may not activate before alarm and unit may shutdown before warning September 19, 2016 ©2015 General Electric Company. All rights reserved. Page 5 Datasheet GE TM 2 × 6A Digital Dual MicroDlynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 6AOutput Current 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 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 mA IL Output Low Voltage (CLK, DATA, SMBALERT#) I =2mA VOL 0.4 V OUT Output high level open drain leakage current (DATA, VOUT=3.6V IOH 0 10 μA SMBALERT#) Pin capacitance CO 0 1 pF PMBus Operating frequency range Slave Mode FPMB 10 400 kHz Receive Mode Data hold time 0 tHD:DAT ns Transmit Mode 300 tSU:DAT Data setup time 250 ns Measurement System Characteristics Output current measurement range IRNG 0 9 A Output current measurement gain accuracy (at 25°C) I ±1 A ACC VOUT measurement range V 0.5 5.8 V OUT(rng) V measurement accuracy -2 2 % OUT September 19, 2016 ©2015 General Electric Company. All rights reserved. Page 6 GE Datasheet TM 2 × 6A Digital Dual MicroDlynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 6A Output Current Characteristic Curves TM o The following figures provide typical characteristics for the 2 × 6A Digital Dual MicroDlynx at 0.6Vo and 25 C. O OUTPUT CURRENT, I (A) AMBIENT TEMPERATURE, T C O A Figure 2. Derating Output Current versus Ambient Figure 1. Converter Efficiency versus Output Current. Temperature and Airflow. TIME, t (1s/div) TIME, t (20s /div) Figure 4. Transient Response to Dynamic Load Change from Figure 3. Typical output ripple and noise (CO= 50% to 100% on one output at 12Vin, Cout=3x47uF+3x330uF, 2×4.7nF+2×47uF ceramic, VIN = 12V, Io = Io1,max, Io2,max, ). CTune=12nF, RTune=300Ω TIME, t (2ms/div) TIME, t (2ms/div) Figure 5. Typical Start-up Using On/Off Voltage (Vin=12V, Io Figure 6. Typical Start-up Using Input Voltage (VIN = 12V, Io = = Io1,max, Io2,max,). Io1,max, Io2,max,). September 19, 2016 ©2015 General Electric Company. All rights reserved. Page 7 OUTPUT VOLTAGES OUTPUT VOLTAGES ON/OFF VOLTAGE V (V) (30mV/div) EFFICIENCY,  (%) V (V) (200mV/div) V (V) (5V/div) O O ON/OFF OUTPUT VOLTAGES INPUT VOLTAGE OUTPUT CURRENT, OUTPUT VOLTAGE V (V) (200mV/div) V (V) (10V/div) I (A) (2Adiv) V (10mV/div) OUTPUT CURRENT, Io (A) O IN O O GE Datasheet TM 2 × 6A Digital Dual MicroDlynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 6AOutput Current Characteristic Curves TM o The following figures provide typical characteristics for the 2 × 6A Digital Dual MicroDlynx at 1.2Vo and 25 C. 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 (1s/div) TIME, t (20s /div) Figure 10. Transient Response to Dynamic Load Change on one Figure 9. Typical output ripple and noise (C = O output from 50% to 100% at 12Vin, Cout = 3x47uF + 2x330uF, 2×4.7nF+2×47uF ceramic, VIN = 12V, Io = Io1,max, Io2,max ). CTune = 2700pF & RTune = 300Ω TIME, t (2ms/div) TIME, t (2ms/div) Figure 1. Typical Start-up Using On/Off Voltage (VIN = 12V, Io Figure 12. Typical Start-up Using Input Voltage (VIN = 12V, Io = = Io1,max, Io2,max). Io1,max, Io2,max). September 19, 2016 ©2015 General Electric Company. All rights reserved. Page 8 OUTPUT VOLTAGES ON/OFF VOLTAGE OUTPUT VOLTAGES V (V) (500mV/div) V (V) (5V/div) V (V) (30mV/div) EFFICIENCY,  (%) O ON/OFF O OUTPUT VOLTAGES INPUT VOLTAGE OUTPUT CURRENT, OUTPUT VOLTAGE VO (V) (500mV/div) VIN (V) (10V/div) IO (A) (2Adiv) VO (20mV/div) OUTPUT CURRENT, Io (A) GE Datasheet TM 2 × 6A Digital Dual MicroDlynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 6A Output Current Characteristic Curves TM o The following figures provide typical characteristics for the 2 × 6A Digital Dual MicroDlynx at 1.8Vo and 25 C. 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 (1s/div) TIME, t (20s /div) Figure 16. Transient Response to Dynamic Load Change on one Figure 15. Typical output ripple and noise (C = O output from 50% to 100% at 12Vin, Cout = 3x47uF+1x330uF, 2×4.7nF+2×47uF ceramic, VIN = 12V, Io = Io1,max, Io2,max). CTune = 1800pF & RTune = 300Ω TIME, t (2ms/div) TIME, t (2ms/div) Figure 17. Typical Start-up Using On/Off Voltage (VIN = 12V, Figure 18. Typical Start-up Using Input Voltage (VIN = 12V, Io = Io = Io1,max, Io2,max). Io1,max, Io2,max). September 19, 2016 ©2015 General Electric Company. All rights reserved. Page 9 OUTPUT VOLTAGES ON/OFF VOLTAGE OUTPUT VOLTAGES VO (V) (500mV/div) VON/OFF (V) (5V/div) VO (V) (30mV/div) EFFICIENCY,  (%) OUTPUT CURRENT, OUTPUT VOLTAGE OUTPUT VOLTAGES INPUT VOLTAGE I (A) (2Adiv) V (20mV/div) OUTPUT CURRENT, Io (A) O O VO (V) (500mV/div) VIN (V) (10V/div) GE Datasheet TM 2 × 6A Digital Dual MicroDlynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 6AOutput Current Characteristic Curves TM o The following figures provide typical characteristics for the 2 × 6A Digital Dual MicroDlynx at 2.5Vo and 25 C. 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 (1s/div) TIME, t (20s /div) Figure 22. Transient Response to Dynamic Load Change on one Figure 21. Typical output ripple and noise (C = O output from 50% to 100% at 12Vin, Cout = 2x47uF + 1x330uF, 2x4.7nF+2x47uF ceramic, VIN = 12V, Io = Io1,max, Io2,max). CTune = 1500pF & RTune = 300Ω TIME, t (2ms/div) TIME, t (2ms/div) Figure 23. Typical Start-up Using On/Off Voltage (VIN = 12V, Figure 24. Typical Start-up Using Input Voltage (VIN = 12V, Io = Io = Io1,max, Io2,max). Io1,max, Io2,max). September 19, 2016 ©2015 General Electric Company. All rights reserved. Page 10 OUTPUT VOLTAGES ON/OFF VOLTAGE OUTPUT VOLTAGES V (V) (1V/div) V (V) (5V/div) V (V) (30mV/div) EFFICIENCY,  (%) O ON/OFF O OUTPUT VOLTAGES INPUT VOLTAGE OUTPUT CURRENT, OUTPUT VOLTAGE VO (V) (1V/div) VIN (V) (10V/div) IO (A) (2Adiv) VO (50mV/div) OUTPUT CURRENT, Io (A) GE Datasheet TM 2 × 6A Digital Dual MicroDlynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 6A Output Current Characteristic Curves TM o The following figures provide typical characteristics for the 2 × 6A Digital Dual MicroDlynx at 3.3Vo and 25 C. O OUTPUT CURRENT, I (A) AMBIENT TEMPERATURE, T C O A Figure 26. Derating Output Current versus Ambient Figure 25. Converter Efficiency versus Output Current. Temperature and Airflow. TIME, t (1s/div) TIME, t (20s /div) Figure 28 Transient Response to Dynamic Load Change on Figure 27. Typical output ripple and noise (C = O one output from 50% to 100% at 12Vin, Cout = 2x4.7nF+2x47uF ceramic, VIN = 12V, Io = Io1,max, Io2,max). 2x47uF+1x330uF, CTune = 1200pF & RTune = 300Ω TIME, t (2ms/div) TIME, t (2ms/div) Figure 29. Typical Start-up Using On/Off Voltage (VIN = 12V, Io Figure 30. Typical Start-up Using Input Voltage (VIN = 12V, Io = = Io1,max, Io2,max). Io1,max, Io2,max). September 19, 2016 ©2015 General Electric Company. All rights reserved. Page 11 OUTPUT VOLTAGES ON/OFF VOLTAGE OUTPUT VOLTAGES V (V) (1V/div) V (V) (5V/div) V (V) (30mV/div) EFFICIENCY,  (%) O ON/OFF O OUTPUT VOLTAGES INPUT VOLTAGE OUTPUT CURRENT, OUTPUT VOLTAGE VO (V) (1V/div) VIN (V) (10V/div) IO (A) (2Adiv) VO (V) (50mV/div) OUTPUT CURRENT, Io (A) GE Datasheet TM 2 × 6A Digital Dual MicroDlynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 6AOutput Current Characteristic Curves TM o The following figures provide typical characteristics for the 2 × 6A Digital Dual MicroDlynx at 5Vo and 25 C. O OUTPUT CURRENT, I (A) AMBIENT TEMPERATURE, T C O A Figure 32. Derating Output Current versus Ambient Figure 31. Converter Efficiency versus Output Current. Temperature and Airflow. TIME, t (1s/div) TIME, t (20s /div) Figure 34. Transient Response to Dynamic Load Change on Figure 33. Typical output ripple and noise (C = 2×4.7nF + O one output from 50% to 100% at 12Vin, Cout = 4x47uF, CTune 2×47uF ceramic, VIN = 12V, Io = Io1,max, Io2,max). = 470pF & RTune = 300Ω TIME, t (2ms/div) TIME, t (2ms/div) Figure 35. Typical Start-up Using On/Off Voltage (VIN = 12V, Io Figure 36. Typical Start-up Using Input Voltage (VIN = 12V, Io = = Io1,max, Io2,max). Io1,max, Io2,max). September 19, 2016 ©2015 General Electric Company. All rights reserved. Page 12 OUTPUT VOLTAGES ON/OFF VOLTAGE OUTPUT VOLTAGES V (V) (2V/div) V (V) (5V/div) V (V) (30mV/div) EFFICIENCY,  (%) O ON/OFF O OUTPUT VOLTAGES INPUT VOLTAGE OUTPUT CURRENT, OUTPUT VOLTAGE V (V) (2V/div) V (V) (10V/div) I (A) (2Adiv) V (50mV/div) OUTPUT CURRENT, Io (A) O IN O O Datasheet GE TM 2 × 6A Digital Dual MicroDlynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 6A Output Current Design Considerations 40 Input Filtering 2x47uF each output 35 TM The2 × 6A Digital Dual MicroDlynx module should be 3x47uF each output connected to a low ac-impedance source. A highly 30 inductive source can affect the stability of the module. An 25 input capacitance must be placed directly adjacent to the input pin of the module, to minimize input ripple voltage 20 and ensure module stability. 15 To minimize input voltage ripple, ceramic capacitors are recommended at the input of the module. Figure 37 10 shows the input ripple voltage for various output voltages 5 at2 x 6A of load current with 2x22 µF or 4x22 µF ceramic capacitors and an input of 12V. 0 100 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 2x22uF Output Voltage(Volts) 4x22uF 80 Figure 38. Output ripple voltage for various output voltages with total external 4x47 µF or 6x47 µF ceramic capacitors at the output (2 x 6A load). Input voltage is 12V. 60 Scope BW: 20MHz 40 Safety Considerations For safety agency approval the power module must be 20 installed in compliance with the spacing and separation 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(Volts) Figure 37. Input ripple voltage for various output For the converter output to be considered meeting the voltages with 2x22 µF or 4x22 µF ceramic capacitors at requirements of safety extra-low voltage (SELV), the input the input (2 x 6A load). Input voltage is 12V. Scope BW: must meet SELV requirements. The power module has 20MHz extra-low voltage (ELV) outputs when all inputs are ELV. Output Filtering The input to these units is to be provided with a fast-acting fuse with a maximum rating of 15 A in the positive input These modules are designed for low output ripple voltage lead. and will meet the maximum output ripple specification with 0.1 µF ceramic and 22 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 of2 x 6A. 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 19, 2016 ©2015 General Electric Company. All rights reserved. Page 13 Input Ripple (mVp-p) Output Ripple (mVp-p) Datasheet GE TM 2 × 6A Digital Dual MicroDlynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 6AOutput Current Output 1 Analog Feature Descriptions DUAL OUTPUT MODULE Remote On/Off +3.3V +VIN +VIN The module can be turned ON and OFF either by using the Rpullup 47K 47K ON/OFF pin (Analog interface) or through the PMBus interface (Digital). The module can be configured in a ENABLE1 I ON/OFF1 number of ways through the PMBus interface to react to the 22K Q1 two ON/OFF inputs: + Q2  Module ON/OFF can be controlled only through V 22K the analog interface (digital interface ON/OFF ON/OFF1 commands are ignored)  Module ON/OFF can be controlled only through _ GND the PMBus interface (analog interface is ignored)  Module ON/OFF can be controlled by either the analog or digital interface Output 2 The default state of the module (as shipped from the factory) DUAL OUTPUT MODULE is to be controlled by the analog interface only. If the digital +VIN +3.3V +VIN interface is to be enabled, or the module is to be controlled only through the digital interface, this change must be made 47K Rpullup 47K through the PMBus. These changes can be made and written to non-volatile memory on the module so that it is ENABLE2 I ON/OFF2 remembered for subsequent use. 22K Q2 + Analog On/Off Q2 TM The2 × 6A Digital Dual MicroDlynx power modules feature V 22K ON/OFF2 an On/Off pin for remote On/Off operation. Two On/Off logic options are available. In the Positive Logic On/Off option, _ GND (device code suffix “4” – see Ordering Information), the module turns ON during a logic High on the On/Off pin and Figure 39. Circuit configuration for using positive On/Off turns OFF during a logic Low. With the Negative Logic logic. On/Off option, (no device code suffix, see Ordering Information), the module turns OFF during logic High and ON during logic Low. The On/Off signal should be always Output 1 referenced to ground. For either On/Off logic option, leaving DUAL OUTPUT MODULE +3.3V the On/Off pin disconnected will turn the module ON when +VIN input voltage is present. Rpullup 47K For positive logic modules, the circuit configuration for using ENABLE1 the On/Off pin is shown in Figure 39. When the external I ON/OFF1 22K Q1 transistor is in the OFF state, the internal transistor Q1 is + turned ON, and the internal PWM Enable# signal(normally Q2 low) is pulled low causing the module to be ON. When ext. V 22K ON/OFF1 transistor is turned ON, the On/Off pin is pulled low, and the internal PWM Enable# signal(normally low) is pulled high and _ GND the module is OFF. For negative logic On/Off modules, the circuit configuration is shown in Fig. 40. When external Output 2 transistor is in the OFF state, the On/Off pin is pulled high, DUAL OUTPUT MODULE transistor Q1 is turned ON and the internal PWM Enable +3.3V +VIN signal is pulled low and the module is OFF. To turn the module ON, the external transistor is turned ON pulling the Rpullup 47K On/Off pin low, turning transistor Q1 OFF resulting in the PWM Enable pin going high and the module turns ON ENABLE2 I ON/OFF2 22K Q2 Digital On/Off + Q2 Please see the Digital Feature Descriptions section. V 22K ON/OFF2 _ GND Figure 40. Circuit configuration for using negative On/Off logic. September 19, 2016 ©2015 General Electric Company. All rights reserved. Page 14 Datasheet GE TM 2 × 6A Digital Dual MicroDlynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 6A Output Current Figure 42. Circuit configuration for programming output Monotonic Start-up and Shutdown voltage using an external resistor. The module has monotonic start-up and shutdown behavior for any combination of rated input voltage, output current and operating temperature range. Without an external resistor between Trim and SIG_GND pins, each output of the module will be 0.6Vdc.To calculate Startup into Pre-biased Output the value of the trim resistor, Rtrim for a desired output The module can start into a prebiased output on either or voltage, should be as per the following equation: both outputs as long as the prebias voltage is 0.5V less than the set output voltage.  12  Rtrim  k    Vo 0.6 Analog Output Voltage Programming   The output voltage of each output of the module can be Rtrim is the external resistor in kΩ programmable to any voltage from 0.6dc to 5.5Vdc by Vo is the desired output voltage. connecting a resistor between the 2 Trims and SIG_GND pins of the module. Certain restrictions apply on the output Table 1 provides Rtrim values required for some common voltage set point depending on the input voltage. These are output voltages. shown in the Output Voltage vs. Input Voltage Set Point Area Table 1 plot in Fig. 1. The Upper Limit curve shows that for output voltages lower than 1V, the input voltage must be lower VO, set (V) Rtrim (KΩ) than the maximum of 14.4V. If the module can operate at 0.6 Open 14.4V below 1V then that is preferable over the existing 0.9 40 upper curve. The Lower Limit curve shows that for output voltages higher than 0.6V, the input voltage needs to be 1.0 30 larger than the minimum of 4.5V. 1.2 20 1.5 13.33 16 1.8 10 14 2.5 6.316 12 3.3 4.444 Upper 5.0 2.727 10 8 6 Digital Output Voltage Adjustment 4 Please see the Digital Feature Descriptions section. 2 Lower Remote Sense 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 The power module has a Remote Sense feature to minimize the effects of distribution losses by regulating the voltage Output Voltage (V) between the sense pins (VS+ and VS-) for each of the 2 outputs. The voltage drop between the sense pins and the Figure 41. Output Voltage vs. Input Voltage Set Point Area VOUT and GND pins of the module should not exceed 0.5V. If plot showing limits where the output voltage can be set there is an inductor being used on the module output, then for different input voltages. the tunable loop feature of the module should be used to ensure module stability with the proposed sense point V (+) V (+) IN1 O1 location. If the simulation tools and loop feature of the V (+) V (+) IN2 O2 module are not being used, then the remote sense should VS+1 always be connected before the inductor. The sense trace VS+2 ON/OFF1 should also be kept away from potentially noisy areas of the TRIM1 board ON/OFF2 TRIM2 Analog Voltage Margining LOAD R trim2 R trim1 Output voltage margining can be implemented in the module by connecting a resistor, R , from the Trim pin margin-up SIG_GND to the ground pin for margining-up the output voltage and GND by connecting a resistor, Rmargin-down, from the Trim pin to output pin for margining-down. Figure 43 shows the circuit Caution – Do not connect SIG_GND to GND elsewhere in the configuration for output voltage margining. The POL layout Programming Tool, available at www.gecriticalpower.com under the Downloads section, also calculates the values of R and R for a specific output voltage and % margin-up margin-down September 19, 2016 ©2015 General Electric Company. All rights reserved. Page 15 Input Voltage (v) Datasheet GE TM 2 × 6A Digital Dual MicroDlynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 6AOutput Current margin. Please consult your local GE technical Please see the Digital Feature Descriptions section. representative for additional details. Digitally Adjustable Output Over and Under Voltage Vo1 Protection Rmargin-down Please see the Digital Feature Descriptions section. MODULE Input Undervoltage Lockout At input voltages below the input undervoltage lockout limit, Q2 the module operation is disabled. The module will begin to Trim1 operate at an input voltage above the undervoltage lockout turn-on threshold. Rmargin-up Rtrim1 Digitally Adjustable Input Undervoltage Lockout Please see the Digital Feature Descriptions section. Q1 Digitally Adjustable Power Good Thresholds SIG_GND Please see the Digital Feature Descriptions section. Synchronization Vo2 The module switching frequency can be synchronized to a Rmargin-down signal with an external frequency within a specified range. MODULE Synchronization can be done by using the external signal applied to the SYNC pin of the module as shown in Fig. 45, Q4 with the converter being synchronized by the rising edge of the external signal. The Electrical Specifications table Trim2 specifies the requirements of the external SYNC signal. If the Rmargin-up SYNC pin is not used, the module should free run at the default switching frequency. If synchronization is not being Rtrim1 used, connect the SYNC pin to GND. Q3 MODULE SIG_GND SYNC Figure 43. Circuit Configuration for margining Output + voltage. ─ Digital Output Voltage Margining SIG_GND Please see the Digital Feature Descriptions section. Figure 45. External source connections to synchronize Overcurrent Protection switching frequency of the module. To provide protection in a fault (output overload) condition, the unit is equipped with internal current-limiting circuitry on Measuring Output Current, Output Voltage and both outputs and can endure current limiting continuously. Temperature At the point of current-limit inception, the unit enters hiccup Please see the Digital Feature Descriptions section. mode. The unit operates normally once the output current is brought back into its specified range. TM Tunable Loop Digital Adjustable Overcurrent Warning Please see the Digital Feature Descriptions section. The module has a feature that optimizes transient response TM of the module called Tunable Loop . Overtemperature Protection External capacitors are usually added to the output of the To provide protection in a fault condition, the unit is module for two reasons: to reduce output ripple and noise equipped with a thermal shutdown circuit. The unit will shut (see Figure 38) and to reduce output voltage deviations from o down if the overtemperature threshold of 135 C(typ) is the steady-state value in the presence of dynamic load exceeded at the thermal reference point T .Once the unit ref current changes. Adding external capacitance however goes into thermal shutdown it will then wait to cool before affects the voltage control loop of the module, typically attempting to restart. causing the loop to slow down with sluggish response. Digital Temperature Status via PMBus September 19, 2016 ©2015 General Electric Company. All rights reserved. Page 16 Datasheet GE TM 2 × 6A Digital Dual MicroDlynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 6A Output Current Larger values of external capacitance could also cause the for best transient performance and stable operation for module to become unstable. other output capacitance values. Table 2. General recommended values of of R and TUNE TM The Tunable Loop allows the user to externally adjust the CTUNE for Vin=12V and various external ceramic capacitor voltage control loop to match the filter network connected combinations. TM to the output of the module. The Tunable Loop is implemented by connecting a series R-C between the VS+ Co 2x47F 4x47F 6x47F 10x47F 20x47F and TRIM pins of the module, as shown in Fig. 47. This R-C R TUNE 300 300 300 300 300 allows the user to externally adjust the voltage loop feedback compensation of the module. C TUNE 220pF 1000pF 1500pF 2700pF 3900pF VOUT1 Table 3. Recommended values of R and C to obtain TUNE TUNE VS+1 transient deviation of 2% of Vout for a 6A step load with RTune Vin=12V. Vo 5V 3.3V 2.5V 1.8V 1.2V 0.6V CO MODULE 2x47F 2x47F CTune 3x47F + 3x47F + 3x47F + + + Co 4x47F 1x330F 2x330F 3x330F TRIM1 330F 1x330F Polymer Polymer Polymer Polymer Polymer RTrim R TUNE 300 300 300 300 300 300 C TUNE 470pF 1500pF 1500pF 1800pF 2700pF 12nF SIG_GND V 69mV 31mV 30mV 27mV 18mV 9mV GND Note: The capacitors used in the Tunable Loop tables are 47 μF/2 mΩ ESR ceramic and 330 μF/9 mΩ ESR polymer VOUT2 capacitors. VS+2 RTune CO MODULE CTune TRIM2 RTrim SIG_GND GND Figure. 47. Circuit diagram showing connection of R TUNE and CTUNE to tune the control loop of the module. Recommended values of R and C for different output TUNE TUNE capacitor combinations are given in Table 2. Table 2 shows the recommended values of R and C for different TUNE TUNE values of ceramic output capacitors up to 1000uF that might be needed for an application to meet output ripple and noise requirements. Selecting RTUNE and CTUNE according to Table 2 will ensure stable operation of the module. In applications with tight output voltage limits in the presence of dynamic current loading, additional output capacitance will be required. Table 3 lists recommended values of R and C in order to meet 2% output TUNE TUNE voltage deviation limits for some common output voltages in the presence of a 3A to 6A step change (50% of full load), with an input voltage of 12V. Please contact your GE technical representative to obtain more details of this feature as well as for guidelines on how to select the right value of external R-C to tune the module September 19, 2016 ©2015 General Electric Company. All rights reserved. Page 17 Datasheet GE TM 2 × 6A Digital Dual MicroDlynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 6AOutput Current resistor values suggested for each digit are shown in Table 4 (1% tolerance resistors are recommended). Note that if 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 2 × 6A Digital Dual MicroDlynx power modules have a Digit Resistor Value (KΩ) PMBus interface that supports both communication and 0 11 control. The PMBus Power Management Protocol 1 18.7 Specification can be obtained from www.pmbus.org. The 2 27.4 modules support a subset of version 1.1 of the specification 3 38.3 (see Table 6 for a list of the specific commands supported). Most module parameters can be programmed using PMBus 4 53.6 and stored as defaults for later use. 5 82.5 All communication over the module PMBus interface must 6 127 support the Packet Error Checking (PEC) scheme. The PMBus 7 187 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 48. Circuit showing connection of resistors used to set the PMBus address of the module. Data Byte High Data Byte Low PAGE 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 Both the outputs of the module can be configured, controlled and monitored through only one physical address Exponent Mantissa MSB MSB Format Unsigned Binary Bit Position 7 6 5 4 3 2 1 0 Access r/w r r r r r r r/w The value is of the number is then given by Function PA X X X X X X P0 Default Exponent Value = Mantissa x 2 0 X X X X X X 0 Value PMBus Addressing PAGE Command Truth Table The power module can be addressed through the PMBus PA P0 Logic Results using a device address. The module has 64 possible 0 0 All Commands address first output addresses (0 to 63 in decimal) which can be set using 0 1 All Commands address second output resistors connected from the ADDR0 and ADDR1 pins to SIG_GND. Note that some of these addresses (0, 1, 2, 3, 4, 5, 1 0 Illegal input, Ignore write 6, 7, 8, 9, 10, 11 12, 40, 44, 45, 55 in decimal) are reserved 1 1 All Commands address both outputs according to the SMBus specifications and may not be useable. The address is set in the form of two octal (0 to 7) If PAGE=11, then any read commands affect the first digits, with each pin setting one digit. The ADDR1 pin sets channel. Any value to ready-only registers is ignored. the high order digit and ADDR0 sets the low order digit. The September 19, 2016 ©2015 General Electric Company. All rights reserved. Page 18 Datasheet GE TM 2 × 6A Digital Dual MicroDlynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 6A Output Current CPR: Sets the response of the analog ON/OFF pin. This bit is used together with the CMD, PU and ON bits to determine Operation (01h) startup. This is a paged register. The OPERATION command can be Bit Value Action use to turn the module on or off in conjunction with the Module ignores the analog ON/OFF pin, i.e. ON/OFF pin input. It is also used to margin up or margin 0 ON/OFF is only controlled through the down the output voltage PMBUS via the OPERATION command Module requires the analog ON/OFF pin to 1 be asserted to start the unit PMBus Enabled On/Off CPA: Sets the action of the analog ON/OFF pin when turning the controller OFF. This bit is internally read and cannot be The module can also be turned on and off via the PMBus modified by the user interface. The OPERATION command is used to actually turn the module on and off via the PMBus, while the ON_OFF_CONFIG command configures the combination of analog ON/OFF pin input and PMBus commands needed to PMBus Adjustable Soft Start Rise Time turn the module on and off. Bit [7] in the OPERATION The soft start rise time can be adjusted in the module via command data byte enables the module, with the following PMBus. When setting this parameter, make sure that the functions: charging current for output capacitors can be delivered by the module in addition to any load current to avoid nuisance 0 : Output is disabled tripping of the overcurrent protection circuitry during 1 : Output is enabled startup. The TON_RISE command sets the rise time in ms, This module uses the lower five bits of the ON_OFF_CONFIG and allows choosing soft start times between 600μs and data byte to set various ON/OFF options as follows: 9ms, with possible values listed in Table 5. Note that the exponent is fixed at -4 (decimal) and the upper two bits of the mantissa are also fixed at 0. Bit Position 4 3 2 1 0 Table 5 Access r/w r/w r/w r r Function PU CMD CPR POL CPA Rise Time Exponent Mantissa Default Value 1 0 1 1 0 600μs 11100 00000001010 900μs 11100 00000001110 1.2ms 11100 00000010011 PU: Sets the default to either operate any time input power 1.8ms 11100 00000011101 is present or for the ON/OFF to be controlled by the analog 2.7ms 11100 00000101011 ON/OFF input and the PMBus OPERATION command. This bit 4.2ms 11100 00001000011 is used together with the CP, CMD and ON bits to determine 6.0ms 11100 00001100000 startup. 9.0ms 11100 00010010000 Bit Value Action Module powers up any time power is 0 present regardless of state of the analog Output Voltage Adjustment Using the PMBus ON/OFF pin The VREF_TRIM parameter is important for a number of Module does not power up until PMBus commands related to output voltage trimming, and commanded by the analog ON/OFF pin and 1 margining. Each of the 2 output voltages of the module can the OPERATION command as programmed be set as the combination of the voltage divider formed by in bits [2:0] of the ON_OFF_CONFIG register. RTrim and a 20kΩ upper divider resistor inside the module, and the internal reference voltage of the module. The CMD: The CMD bit controls how the device responds to the reference voltage VREF shall be nominally set at 600mV, and the output regulation voltage is then given by OPERATION command. Bit Value Action 20000 RTrim1   Module ignores the ON bit in the V   V OUT .1 REF 0   RTrim1 OPERATION command   Module responds to the ON bit in the 1 OPERATION command 20000 RTrim2   V   V OUT .2 REF   RTrim2   Hence the module output voltages shall be dependent on the value of RTrim1 and Rtrim2 which are connected external to the module. September 19, 2016 ©2015 General Electric Company. All rights reserved. Page 19 Datasheet GE TM 2 × 6A Digital Dual MicroDlynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 6AOutput Current The VREF_TRIM parameter is used to apply a fixed offset permissible voltage range change shall be -30% to +10% for voltage to the reference voltage can be specified using the the margin high command and -20% to 0% for the margin “Linear” format and two bytes. The exponent is fixed at –9 low command (decimal). The resolution of the adjustment is 7 bits, with a resulting step size of approximately 0.4%. The maximum V  REF ( MH ) trim range is -20% to +10% of the nominal reference voltage(600mV) in 2mV steps. Permissible values range from 9 ( STEP _ VREF _ MARGIN _ HIGH VREF _ TRIM ) 2 -120mV to +60mV Applications Example When PMBus commands are used to trim or margin the For a design where the output voltage is 1.2V and the output output voltage, the value of VREF is what is changed inside needs to be trimmed up by 100mV (within 10% of Vo). the module, which in turn changes the regulated output • The internal reference voltage is 0.6V. So we need to voltage of the module. determine how the 100mV translates to a change in the internal reference voltage. The nominal output voltage of the module can be adjustable  Divider Ratio = Vref/Vout = 0.6/1.2 = 0.5 with a minimum step size of 0.4% over a +10% to -20%  Hence a 100mV change at 1.2Vo requires a 0.5x100mV = range from nominal using the VREF_TRIM command over 50mV change in the reference voltage. the PMBus.  VREF(MH) = (50)/1000 = 0.05 Volts -9 The VREF_TRIM command can be used to apply a fixed  V (Step V + V ) x 2 REF(MH) = _ ref_margin_high ref_trim offset voltage to either of the output voltage command  Assume Vref_Trim = 0 here value using the “Linear” mode with the exponent fixed at –9  Step_Vref_margin_high = VREF(MH) x 512 (decimal). The value of the offset voltage shall be given by  Step_Vref_margin_high = 0.05 x 25.6 = 26 (rounded to nearest integer 9 V  VREF _ TR IM2 REF ( o ffset) V  REF ( ML) This offset voltage shall be added to the voltage set through the divider ratio and nominal V to produce the trimmed 9 REF ( STEP _ VREF _ MARGIN _ LOW VREF _ TRIM ) 2 output voltage. If a value outside of the +10%/-20% Applications Example adjustment range is given with this command, the module For a design where the output voltage is 1.8V and the output will set it’s output voltage to the upper or lower limit value needs to be trimmed down by 100mV (within -20% of Vo). (as if VOUT_TRIM, assert SMBALRT#, set the CML bit in • The internal reference voltage is 0.6V. So we need to STATUS_BYTE and the invalid data bit in STATUS_CML. determine how the 100mV translates to a change in the internal reference voltage. Applications Example  Divider Ratio = Vref/Vout = 0.6/1.8 = 0.33 For a design where the output voltage is 1.8V and the output  Hence a 100mV change at 1.2Vo requires a 0.33x100mV = needs to be trimmed down by 20mV. 33mV change in the reference voltage. • The internal reference voltage is 0.6V. So we need to  VREF(MH) = -(33)/1000 = - 0.033 Volts (- sign since we are determine how the 20mV translates to a change in the margining down) internal reference voltage. -9  VREF(ML) = (Step_Vref_margin_low + Vref_trim) x 2  Divider Ratio = Vref/Vout = 0.6/1.8 = 0.33  Assume Vref_Trim = - 3 here (from V Ref_Trim example  Hence a 20mV change at 1.8Vo requires a 0.33x20mV = earlier) 6.6mV change in the reference voltage.  Step_Vref_margin_low = VREF(ML) x 512 - Vref_trim  Vref(offset) = - (6.6)/1000 = - 0.0066 Volts (- sign since  Step_Vref_margin_low = -0.033 x 512 – (-3) = -16.9+3 = -13.9 = we are trimming down) -9 -14 (rounded to nearest integer  V V x 2 ref(offset) = ref_Trim  V = V x 512 ref_Trim ref(offset)  V = -0.0066 x 512 = -3.3 = -3 (rounded to nearest ref_Trim The module shall support the margined high or low voltages integer using the OPERATION command. Bits [5:2] shall be used to enable margining as follows: Output Voltage Margining Using the PMBus 00XX : Margin Off Each output of the module can also have its output voltage 0101 : Margin Low (Act on Fault) margined via PMBus commands. The command 0110 : Margin Low (Act on Fault) STEP_VREF_MARGIN_HIGH shall set the margin high voltage, 1001 : Margin High (Act on Fault) while the command STEP_VREF_MARGIN_LOW sets the 1010 : Margin High (Act on Fault) margin low voltage. Both the STEP_VREF_MARGIN_HIGH and STEP_VREF_MARGIN_LOW commands shall use the PMBus Adjustable Overcurrent Warning “Linear” mode with the exponent fixed at –9 (decimal). Two The module can provide an overcurrent warning via the bytes shall be used for the mantissa with the upper bit [7] of PMBus. The threshold for the overcurrent warning can be the high byte shall be fixed at 0. The actual margined output set using the parameter IOUT_OC_WARN_LIMIT. This voltage shall be a combination of the command uses the “Linear” data format with a two byte STEP_VREF_MARGIN_HIGH or STEP_VREF_MARGIN_LOW data word where the upper five bits [7:3] of the high byte and the VREF_TRIM values as shown below. The net September 19, 2016 ©2015 General Electric Company. All rights reserved. Page 20 Datasheet GE TM 2 × 6A Digital Dual MicroDlynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 6A Output Current represent the exponent and the remaining three bits of the possible values are 4V to 15.75V in 0.5V steps. If other values high byte [2:0] and the eight bits in the low byte represent are entered for either command, they shall be mapped to the mantissa. The exponent is fixed at –1 (decimal). The the closest of the allowed values. upper five bits of the mantissa are fixed at 0 while the lower Both the VIN_ON and VIN_OFF commands use the “Linear” six bits are programmable with a default value of 19A format with two data bytes. The upper five bits shall (decimal). The resolution of this warning limit is 500mA. The represent the exponent (fixed at -2) and the remaining 11 value of the IOUT_OC_WARN_LIMIT can be stored to non- bits shall represent the mantissa. For the mantissa, the four volatile memory using the STORE_DEFAULT_ALL command. most significant bits are fixed at 0. Temperature Status via PMBus Measurement of Output Current and Voltage The module will provide information related to temperature The module is capable of measuring key module of the module through the READ_TEMPERATURE_2 parameters such as output current and voltage for each command. The command returns external temperature in output and providing this information through the PMBus degrees Celsius. This command shall use the “Linear” data interface. format with a two byte data word where the upper five bits [7:3] of the high byte shall represent the exponent and the Measuring Output Current Using the PMBus remaining three bits of the high byte [2:0] and the eight bits The module measures current by using the inductor winding in the low byte shall represent the mantissa. The exponent resistance as a current sense element. The inductor winding is fixed at 0 (decimal). The lower 11 bits are the result of the resistance is then the current gain factor used to scale the ADC conversion of the external temperature measured voltage into a current reading. This gain factor is PMBus Adjustable Output Over, Under Voltage the argument of the IOUT_CAL_GAIN command, and Protection and Power Good consists of two bytes in the linear data format. The exponent uses the upper five bits [7:3] of the high data byte in two-s The module has a common command to set the PGOOD, complement format and is fixed at –15 (decimal). The VOUT_UNDER_VOLTAGE(UV) and VOUT_OVER_VOLTAGE (OV) remaining 11 bits in two’s complement binary format limits as a percentage of nominal. Refer to Table 6 of the represent the mantissa. During manufacture, each module next section for the available settings. The PMBus command is calibrated by measuring and storing the current gain VOUT_OVER_VOLTAGE (OV) shall be used to set the output factor into non-volatile storage. over voltage threshold from two possible values: +12.5% or +16.67% of the commanded output voltage for each output. The current measurement accuracy is also improved by The module provides a Power Good (PGOOD) for each output each module being calibrated during manufacture with the signal that shall be implemented with an open-drain output offset in the current reading. The IOUT_CAL_OFFSET to indicate that the output voltage is within the regulation command is used to store and read the current offset. The limits of the power module. The PGOOD signal shall be de- argument for this command consists of two bytes asserted to a low state if any condition such as composed of a 5-bit exponent (fixed at -4d) and a 11-bit overtemperature, overcurrent or loss of regulation occurs mantissa. This command has a resolution of 62.5mA and a that would result in the output voltage going outside the range of -4000mA to +3937.5mA. specified thresholds. The PGOOD thresholds shall be user selectable via the PMBus (the default values are as shown in The READ_IOUT command provides module average output the Feature Specifications Section). Each threshold shall be current information. This command only supports positive or set up symmetrically above and below the nominal value. current sourced from the module. If the converter is sinking The PGL (POWERGOODLOW) command shall set the output current a reading of 0 is provided. The READ_IOUT voltage level above which PGOOD is asserted (lower command returns two bytes of data in the linear data threshold). The PGH(POWERGOODHIGH) command shall set format. The exponent uses the upper five bits [7:3] of the the level above which the PGOOD command is de-asserted. high data byte in two-s complement format and is fixed at – This command shall also set two thresholds symmetrically 4 (decimal). The remaining 11 bits in two’s complement th placed around the nominal output voltage. Normally, the binary format represent the mantissa with the 11 bit fixed PGL threshold shall be set higher than the PGH threshold. at 0 since only positive numbers are considered valid. The PGOOD terminal can be connected through a pullup Measuring Output Voltage Using the PMBus resistor (suggested value 100K) to a source of 5VDC or lower. The current through the PGood terminal should be The module provides output voltage information using the limited to a max value of 5mA READ_VOUT command for each output. In this module the output voltage is sensed at the remote sense amplifier PMBus Adjustable Input Undervoltage Lockout output pin so voltage drop to the load is not accounted for. The module allows for adjustment of the input under voltage The command shall return two bytes of data all representing the mantissa while the exponent is fixed at -9 (decimal). lockout and hysteresis. The command VIN_ON allows setting the input voltage turn on threshold for each output, while Reading the Status of the Module using the PMBus the VIN_OFF command shall set the input voltage turn off threshold. For the VIN_ON command, possible values are The module supports a number of status information 4.25V to 16V in variable steps. For the VIN_OFF command, commands implemented in PMBus. However, not all September 19, 2016 ©2015 General Electric Company. All rights reserved. Page 21 Datasheet GE TM 2 × 6A Digital Dual MicroDlynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 6AOutput Current features are supported in these commands. A 1 in the bit 7 IOUT OC Fault 0 position indicates the fault that is flagged. 6 X 0 STATUS_BYTE : Returns one byte of information with a 5 IOUT OC Warning 0 summary of the most critical device faults. 4 X 0 Bit Default 3 X 0 Flag Position Value 2 X 0 7 X 0 1 X 0 6 OFF 0 0 X 0 5 VOUT Overvoltage 0 4 IOUT Overcurrent 0 STATUS_TEMPERATURE : Returns one byte of information 3 VIN Undervoltage 0 relating to the status of the module’s temperature related 2 Temperature 0 faults. 1 CML (Comm. Memory Fault) 0 Bit Default Flag 0 None of the above 0 Position Value 7 OT Fault 0 STATUS_WORD : Returns two bytes of information with a 6 OT Warning 0 summary of the module’s fault/warning conditions. 5 X 0 Low Byte 4 X 0 Bit Default 3 X 0 Flag Position Value 2 X 0 7 X 0 1 X 0 6 OFF 0 0 X 0 5 VOUT Overvoltage 0 4 IOUT Overcurrent 0 STATUS_CML : Returns one byte of information relating to 3 VIN Undervoltage 0 the status of the module’s communication related faults. 2 Temperature 0 Bit Default Flag 1 CML (Comm. Memory Fault) 0 Position Value 0 None of the above 0 7 Invalid/Unsupported Command 0 6 Invalid/Unsupported Command 0 High Byte 5 Packet Error Check Failed 0 Bit Default 4 Memory Fault Detected 0 Flag Position Value 3 X 0 7 VOUT fault or warning 0 2 X 0 6 IOUT fault or warning 0 1 Other Communication Fault 0 5 X 0 0 X 0 4 MFR 0 3 POWER_GOOD# (is negated) 0 MFR_VIN_MIN : Returns minimum input voltage as two data 2 X 0 bytes of information in Linear format (upper five bits are 1 X 0 exponent – fixed at -2, and lower 11 bits are mantissa in 0 X 0 two’s complement format – fixed at 12) STATUS_VOUT : Returns one byte of information relating to MFR_VOUT_MIN : Returns minimum output voltage as two the status of the module’s output voltage related faults. data bytes of information in Linear format (upper five bits are exponent – fixed at -10, and lower 11 bits are mantissa Bit Default in two’s complement format – fixed at 614) Flag Position Value 7 VOUT OV Fault 0 MFR_SPECIFIC_00 : Returns information related to the type 6 X 0 of module and revision number. Bits [7:2] in the Low Byte 5 X 0 indicate the module type (001001 corresponds to the UDXS0606 series of module), while bits [7:3] indicate the 4 VOUT UV Fault 0 revision number of the module. 3 X 0 Low Byte 2 X 0 Bit Default 1 X 0 Flag Position Value 0 X 0 7:2 Module Name 001001 STATUS_IOUT : Returns one byte of information relating to 1:0 Reserved 10 the status of the module’s output voltage related faults. High Byte Bit Default Bit Default Flag Flag Position Value Position Value September 19, 2016 ©2015 General Electric Company. All rights reserved. Page 22 Datasheet GE TM 2 × 6A Digital Dual MicroDlynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 6A Output Current 7:3 Module Revision Number None 2:0 Reserved 000 September 19, 2016 ©2015 General Electric Company. All rights reserved. Page 23 Datasheet GE TM 2 × 6A Digital Dual MicroDlynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 6AOutput Current 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 Ability to configure, control and monitor each output by using only one physical address of the module Format Unsigned Binary Bit Position 7 6 5 4 3 2 1 0 Access r/w r r r r r r r/w Function PA X X X X X X P0 Default Value 0 X X X X X X 0 00 PAGE PAGE Command Truth Table PA P0 Logic Results 0 0 All Commands address first output 0 1 All Commands address second output 1 0 Illegal input, Ignore write 1 1 All Commands address both outputs 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 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 01 OPERATION Bit 7: 0 Output switching disabled 1 Output switching enabled Margin: 00XX Margin Off 0101 Margin Low ( Act on fault) 0110 Margin Low (Act on fault) 1001 Margin High (Act on fault) 1010 Margin High (Act on fault) Configures the ON/OFF functionality as a combination of analog ON/OFF pin and PMBus commands Format Unsigned Binary Bit Position 7 6 5 4 3 2 1 0 02 ON_OFF_CONFIG 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 0 Refer to Page 19 for details on pu, cmd, cpr, pol and cpa 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, PAGE 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, PAGE 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) Stores all of the current storable register settings in the EEPROM memory as the 15 STORE_USER_ALL new defaults on power up September 19, 2016 ©2015 General Electric Company. All rights reserved. Page 24 Datasheet GE TM 2 × 6A Digital Dual MicroDlynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 6A Output Current Hex Non-Volatile Command Brief Description Code Memory Storage Restores all of the storable register settings from the non-volatile memory 16 RESTORE_USER_ALL (EEPROM). The command should not be used while the device is actively switching This command helps the host system/GUI/CLI determine key capabilities of the module Format Unsigned Binary Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r r 19 CAPABILITY Function PEC SPD ALRT Reserved Default Value 1 0 1 1 0 0 0 0 PEC – 1 Supported SPD -01 – max of 400kHZ ALRT – 1 – SMBALERT# supported 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 Access r r r r r r r r 20 VOUT_MODE Function Mode Exponent Default Value 0 0 0 1 0 1 1 1 Mode: Value fixed at 000, linear mode Exponent: Value fixed at 10111, Exponent for linear mode values is -9 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 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 1 0 0 0 1 35 VIN_ON YES Exponent -2 (dec), fixed Mantissa The upper four bits are fixed at 0 The lower seven are programmable with a default value of 9(dec). This corresponds to a default of 4.25V. Allowable values are  4.25, in steps of 0.25V upto 9.5V.  9.5V to 13V in increments of 0.5V  13V to 16V in increments of 1V 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 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 0 0 Exponent -2 (dec), fixed 36 VIN_OFF YES Mantissa The upper four bits are fixed at 0 The lower seven are programmable with a default value of 8(dec). This corresponds to a default of 4.0V. Allowable values are  4.00, in steps of 0.25V upto 9.75V.  10.25V to 11.75V in increments of 0.5V  12V  13.75V to 16.75V in increments of 1V September 19, 2016 ©2015 General Electric Company. All rights reserved. Page 25 Datasheet GE TM 2 × 6A Digital Dual MicroDlynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 6AOutput Current Hex Non-Volatile Command Brief Description Code Memory Storage 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 Exponent Mantissa 38 IOUT_CAL_GAIN 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 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 V 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 V: Variable based on factory calibration 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 YES IOUT_OC_FAULT_LIMIT Default Value 1 1 1 1 1 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 1 0 1 0 0 0 Value maybe locked Determines module action in response to an IOU_OC_FAULT_LIMIT or a VOUT undervoltage (UV) fault Format Unsigned Binary Bit Position 7 6 5 4 3 2 1 0 Access r r r/w r/w r/w r r r RS RS RS Function X X x X X [2] [1] [0] 47 IOUT_OC_FAULT_RESPONSE YES Default Value 0 0 1 1 1 1 0 0 RS[2:0] – Retry Setting 000 Unit does not attempt to restart 111 Unit goes through normal soft start continuously Any other value is not acceptable 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 Default Value 1 1 1 1 1 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 1 0 0 1 1 0 Value may be locked September 19, 2016 ©2015 General Electric Company. All rights reserved. Page 26 Datasheet GE TM 2 × 6A Digital Dual MicroDlynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 6A Output Current Hex Non-Volatile Command Brief Description Code Memory Storage Sets the overtemperature fault level in °C 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 4F YES OT_FAULT_LIMIT 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 Mantissa Default Value 1 0 0 0 0 1 1 1 Value may be locked Sets the over temperature warning level in °C 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 51 YES OT_WARN_LIMIT 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 Mantissa Value may be locked Default Value 0 1 1 1 1 1 0 1 Sets the rise time of the output voltage during startup. Supported Values – 0.6, 0.9, 1.2, 1.8, 2.7, 4.2, 6.0, 9.0msec. Value of 0 instructs unit to bring its output to programmed value as quickly as possible 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 61 TON_RISE YES TBD Function Exponent Mantissa 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 1 1 0 0 0 0 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 Access r r r r r r r r 78 STATUS_BYTE None VOUT IOUT_ VIN_U Flag X OFF TEMP CML of the _OV OC V Above 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/P Flag VOUT X MFR PGOOD X X X OUT 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 None of VOUT_ IOUT_O Flag X OFF VIN_UV TEMP CML the OV C above Default Value 0 X 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 7A STATUS_VOUT Bit Position 7 6 5 4 3 2 1 0 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 September 19, 2016 ©2015 General Electric Company. All rights reserved. Page 27 Datasheet GE TM 2 × 6A Digital Dual MicroDlynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 6AOutput Current Hex Non-Volatile Command Brief Description Code Memory Storage Returns one byte of information with the status of the module’s output current related faults Format Unsigned Binary Bit Position 7 6 5 4 3 2 1 0 7B STATUS_IOUT Access r r r r r r r r Flag IOUT_OC Fault X IOUT OC Warning 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 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 Access 7E STATUS_CML r r r r r r r r Memory Other Invalid Invalid PEC Flag fault X X Comm X Command Data Fail detected Fault Default Value 0 0 0 0 0 0 0 0 Returns one byte of information with the status of the module specific faults or warning Format Unsigned Binary Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r R 80 STATUS_MFR_SPECIFIC Flag OTFI x X IVADDR X X X TWOPH_EN Default Value 0 0 0 0 0 0 0 0 OTFI – Internal Temperature above Thermal Shutdown threshold IVADDR – PMBUs address is not valid TWOPH_EN – Module is in 2 phase mode Returns the value of the output voltage of the module. Exponent is fixed at -9. 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 V V V Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r r Function Mantissa Default Value V V V V V V V 0 V - Variable September 19, 2016 ©2015 General Electric Company. All rights reserved. Page 28 Datasheet GE TM 2 × 6A Digital Dual MicroDlynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 6A Output Current Table 6 (Continued) Hex Non-Volatile Command Brief Description Code Memory Storage Returns the value of the external temperature in degree Celsius 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 8E READ_TEMPERATURE_2 Default Value 0 0 0 0 0 V V V Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r r Function Mantissa Default Value V V V V V V V 0 V - Variable Returns one byte indicating the module is compliant to PMBus Spec. 1.1 (read only) Format Unsigned Binary Bit Position 7 6 5 4 3 2 1 0 98 PMBUS_REVISION Access r r r r r r r r Default Value 0 0 0 1 0 0 0 1 Returns module name information 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 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 Module Name Reserved Default Value 0 0 1 0 0 1 1 0 Applies a fixed offset to the reference voltage. Max trim range is -20% to +10% in 2mV steps. Permissible values range between -120mV and +60mV. The offset is calculated -9 as VREF_TRIMx2 . Exponent fixed at -9(dec) 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 D4 VREF_TRIM YES Function Mantissa Default Value V V V V V V V 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 V V V V V V V V Applies a fixed offset to the reference voltage. Adjustment is 0% to +10% in 2mV steps. Permissible values range between 0mV and +60mV. The offset is calculated as -9 (STEP_VREF_MARGIN_HIGH + VREF_TRIM)x2 . Exponent fixed at -9(dec). Net output voltage includes VREF_TRIM adjustment and ranges from -30% to 10% 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 D5 STEP_VREF_MARGIN_HIGH YES Function Mantissa Default Value V V V V V V V 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 19, 2016 ©2015 General Electric Company. All rights reserved. Page 29 Datasheet GE TM 2 × 6A Digital Dual MicroDlynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 6AOutput Current Table 6 (Continued) Non-Volatile Hex Command Brief Description Memory Code Storage Applies a fixed negative offset to the reference voltage. Adjustment is -20% to 0% in 2mV steps. Permissible values range between -120mV and 0mV) The offset is calculated as -9 (STEP_VREF_MARGIN_LOW + VREF_TRIM)x2 .Exponent fixed at -9(dec). Net output voltage includes VREF_TRIM adjustment and ranges from -30% to 10% 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 D6 STEP_VREF_MARGIN_LOW YES Function Mantissa Default Value V V V V V V V 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 V V V V V V V V Single command to set PGOOD, VOUT_UNDER_VOLTAGE(UV) and VOUT_OVER_VOLTAGE(OV) limits as percentage of nominal Format Unsigned Binary Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r/w r/w PCT_ PCT_ Function X X X X X X MSB LSB Default Value 0 X X X X X X 0 D7 PCT_VOUT_FAULT_PG_LIMIT PAGE Command Truth Table PCT_M PCT_LS UV (%) PGL PGL PGH PGH OV (%) SB B LOW HIGH HIGH LOW (%) (%) (%) (%) 0 0 -16.67 -12.5 -8.33 12.5 8.33 16.67 0 1 -12.5 -8.33 -4.17 8.33 4.17 12.5 1 0 -29.17 -20.83 -16.67 8.33 4.17 12.5 1 1 -41.67 -37.5 -33.33 8.33 4.17 12.5 Used to set delay to turn-on or turn-off modules as a ratio of TON_RISE. Values can range from 0 to 7 and are a multiple of TON_RISE TIME Format Unsigned Binary Bit Position 7 6 5 4 3 2 1 0 D8 SEQUENCE_TON_TOFF_DELAY Access r/w r/w r/w r r/w r/w r/w r Function TON_DELAY TOFF_DELAY Default Value 0 0 0 0 0 0 0 0 September 19, 2016 ©2015 General Electric Company. All rights reserved. Page 30 Datasheet GE TM 2 × 6A Digital Dual MicroDlynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 6A Output Current The thermal reference points, Tref used in the specifications Thermal Considerations are also shown in Figure 50. For reliable operation the o Power modules operate in a variety of thermal temperatures at these points should not exceed 135 C. The environments; however, sufficient cooling should always be output power of the module should not exceed the rated provided to help ensure reliable operation. power of the module (Vo,set x Io,max). Considerations include ambient temperature, airflow, Please refer to the Application Note “Thermal module power dissipation, and the need for increased Characterization Process For Open-Frame Board-Mounted reliability. A reduction in the operating temperature of the Power Modules” for a detailed discussion of thermal module will result in an increase in reliability. The thermal aspects including maximum device temperatures. data presented here is based on physical measurements taken in a wind tunnel. The test set-up is shown in Figure 49. The preferred airflow direction for the module is in Figure 50. 25.4_ Wind Tunnel (1.0) PWBs Power Module Figure 50. Preferred airflow direction and location of hot- spot of the module (Tref). 76.2_ (3.0) x Probe Location for measuring 12.7_ airflow and (0.50) ambient temperature Air flow Figure 49. Thermal Test Setup. September 19, 2016 ©2015 General Electric Company. All rights reserved. Page 31 Datasheet GE TM 2 × 6A Digital Dual MicroDlynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 6AOutput Current 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 19, 2016 ©2015 General Electric Company. All rights reserved. Page 32 Datasheet GE TM 2 × 6A Digital Dual MicroDlynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 6A Output Current Example Application Circuit Requirements: Vin: 12V Vout: 1.8V Iout: 2 × 4.5A max., worst case load transient is from 3A to 4.5A Vout: 1.5% of Vout (27mV) for worst case load transient Vin, ripple 1.5% of Vin (180mV, p-p) Vin+ Vout+ VIN1 VOUT1 VS+1 PGOOD1 RTUNE1 MODULE SYNC CTUNE2 CLK CI3 CI2 CI1 TRIM1 CO1 CO2 CO3 DATA ADDR0 SMBALRT# RTrim1 ADDR1 ON/OFF1 RADDR1 RADDR0 SIG_GND PGND PGND GND RTrim2 ON/OFF2 TRIM2 PGOOD2 RTUNE2 CO4 CO5 CO6 CTUNE2 VS+2 VOUT2 VIN2 CI1 Decoupling cap - 4x0.1F/16V, 0402 size ceramic capacitor CI2 4x22F/16V ceramic capacitor (e.g. Murata GRM32ER61C226KE20) CI3 470F/16V bulk electrolytic CO1 Decoupling cap - 2x0.1F/16V, 0402 size ceramic capacitor CO2 3 x 47F/6.3V ceramic capacitor (e.g. Murata GRM31CR60J476ME19) CO3 NA CO4 Decoupling cap - 2x0.1F/16V, 0402 size ceramic capacitor CO5 3 x 47F/6.3V ceramic capacitor (e.g. Murata GRM31CR60J476ME19) CO6 NA CTune1 1500pF ceramic capacitor (can be 1206, 0805 or 0603 size) RTune1 300 ohms SMT resistor (can be 1206, 0805 or 0603 size) RTrim1 10k SMT resistor (can be 1206, 0805 or 0603 size, recommended tolerance of 0.1%) CTune2 1500pF ceramic capacitor (can be 1206, 0805 or 0603 size) RTune2 300 ohms SMT resistor (can be 1206, 0805 or 0603 size) RTrim2 10k 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 19, 2016 ©2015 General Electric Company. All rights reserved. Page 33 Datasheet GE TM 2 × 6A Digital Dual MicroDlynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 6AOutput Current 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.) Pin1 (VSNS1) at this corner Use this Black Dot for orientation and pin numbering These figures are a representation of the product and not intended to show specific assembly details. They are for product dimensional information only PIN FUNCTION PIN FUNCTION 1 VSNS1 15 ADDR1 2 VOUT1 16 TRIM1 3 PGND 17 SIG_GND 1 5 2 3 4 4 VOUT2 18 TRIM2 18 6 5 VSNS2 19 SYNC 19 17 20 21 22 23 24 25 26 7 6 SMBALERT# 20 PGND 7 DATA 21 PGND 16 28 27 8 8 CLK 22 PGND 12 13 11 15 14 10 9 9 ENABLE1 23 PGND 10 ENABLE2 24 PGND 11 VIN 25 PGND 12 PGND 26 PGND 13 VIN 27 PGOOD2 14 ADDRO 28 PGOOD1 September 19, 2016 ©2015 General Electric Company. All rights reserved. Page 34 Datasheet GE TM 2 × 6A Digital Dual MicroDlynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 6A Output Current 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.) SIG_ GND PIN FUNCTION PIN FUNCTION 1 VSNS1 15 ADDR1 2 VOUT1 16 TRIM1 3 PGND 17 SIG_GND 4 VOUT2 18 TRIM2 5 VSNS2 19 SYNC 6 SMBALERT# 20 PGND 7 DATA 21 PGND 8 CLK 22 PGND 9 ENABLE1 23 PGND 10 ENABLE2 24 PGND 11 VIN 25 PGND 12 PGND 26 PGND 13 VIN 27 PGOOD2 14 ADDRO 28 PGOOD1 September 19, 2016 ©2015 General Electric Company. All rights reserved. Page 35 Datasheet GE TM 2 × 6A Digital Dual MicroDlynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 6AOutput Current Packaging Details TM The 12V Digital Dual MicroDlynx 2 × 6A 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). Black Dot on the label is the orientation marker for locating Pin 1 (bottom right corner) Reel Dimensions: Outside Dimensions: 330.2 mm (13.00) Inside Dimensions: 177.8 mm (7.00”) Tape Width: 44.00 mm (1.732”) September 19, 2016 ©2015 General Electric Company. All rights reserved. Page 36 Datasheet GE TM 2 × 6A Digital Dual MicroDlynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 6A Output Current packages should not be broken until time of use. Once the Surface Mount Information original package is broken, the floor life of the product at conditions of  30°C and 60% relative humidity varies Pick and Place according to the MSL rating (see J-STD-033A). The shelf life TM for dry packed SMT packages will be a minimum of 12 The2 × 6A Digital Dual MicroDlynx modules use an open months from the bag seal date, when stored at the following frame construction and are designed for a fully automated conditions: < 40° C, < 90% relative humidity. assembly process. The modules are fitted with a label designed to provide a large surface area for pick and place operations. The label meets all the requirements for surface mount processing, as well as safety standards, and is able o to withstand reflow temperatures of up to 300 C. The label also carries product information such as product code, serial number and the location of manufacture. Nozzle Recommendations The module weight has been kept to a minimum by using open frame construction. Variables such as nozzle size, tip style, vacuum pressure and placement speed should be considered to optimize this process. The minimum recommended inside nozzle diameter for reliable operation is 3mm. The maximum nozzle outer diameter, which will Figure 51. Recommended linear reflow profile using safely fit within the allowable component spacing, is 7 mm. Sn/Ag/Cu solder. Bottom Side / First Side Assembly Post Solder Cleaning and Drying Considerations This module is not recommended for assembly on the bottom side of a customer board. If such an assembly is Post solder cleaning is usually the final circuit-board attempted, components may fall off the module during the assembly process prior to electrical board testing. The result second reflow process. of inadequate cleaning and drying can affect both the reliability of a power module and the testability of the Lead Free Soldering finished circuit-board assembly. For guidance on appropriate soldering, cleaning and drying procedures, refer The modules are lead-free (Pb-free) and RoHS compliant to Board Mounted Power Modules: Soldering and Cleaning and fully compatible in a Pb-free soldering process. Failure Application Note (AN04-001). to observe the instructions below may result in the failure of or cause damage to the modules and can adversely affect long-term reliability. Pb-free Reflow Profile Power Systems will comply with J-STD-020 Rev. D (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). 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 The2 x 6A Digital Dual MicroDlynx modules have a MSL rating of 3 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 Devices). Moisture barrier bags (MBB) with desiccant are required for MSL ratings of 2 or greater. These sealed September 19, 2016 ©2015 General Electric Company. All rights reserved. Page 37 Datasheet GE TM 2 × 6A Digital Dual MicroDlynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14.4Vdc input; 0.51Vdc to 5.5Vdc output; 2 × 6AOutput Current 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 UDXS0606A0X3-SRZ 4.5 – 14.4Vdc 0.51 – 5.5 Vdc 6A x 2 Negative No 150037588 UDXS0606A0X43-SRZ 4.5 – 14.4Vdc 0.51 – 5.5 Vdc 6A x 2 Positive No 150037589 UDXS0606A0X3-SRDZ 4.5 – 14.4Vdc 0.51 – 5.5 Vdc 6A x 2 Negative No 150037590 Table 10. Coding Scheme Package Family Sequencing Input Output Output On/Off Remote ROHS Identifier Option Voltage current voltage logic Sense Options Complianc e U D X S 0606A0 X 3 -SR -D Z P=Pico D=Dlynx T=with EZ Special: 2 × 6A X = 4 = 3 = S = D = 105C Z = ROHS6 Digital Sequence 4.5 – programm positive Remote Surface operating U=Micro 14V able output Sense Mount ambient, V = X=without No entry = 40G M=Mega DLynx sequencing negative R = Tape operating Analog. & Reel G=Giga shock as 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 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 19, 2016 ©2016 General Electric Company. All International rights reserved. Version 1.9