Data Sheet GE TM 80A GigaDLynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14Vdc input; 0.5Vdc to 2.0Vdc output; 80A 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  Wide Input voltage range (4.5Vdc-14Vdc)  Output voltage programmable from 0.6Vdc to 2.0Vdc via external resistor. Digitally adjustable down to 0.5Vdc output. TM #  Digital interface through the PMBus protocol TM  Digital Tunable Loop to optimize dynamic output voltage response  Remote On/Off RoHS Compliant  Digital Sequencing Applications  Power Good signal  Networking equipment  Fixed switching frequency with capability for external synchronization  Telecommunications equipment  Ability to sink and source current  Servers and storage applications  Output overcurrent protection (non-latching)  Distributed power architectures  Over temperature protection  Intermediate bus voltage applications  Cost efficient open frame design  Industrial equipment  Small size: 33.02mm x 22.86mm x 12.7mm [1.3” x 0.9” x 0.5”]  Wide operating temperature range [-40°C to 85°C] nd †  UL* 60950-1 2 Ed. Recognized, CSA C22.2 No. ‡ nd 60950-1-07 Certified, and VDE (EN60950-1 2 Ed.) Licensed  ISO** 9001 and ISO 14001 certified manufacturing facilities Description TM The 80A Digital GigaDLynx power modules are non-isolated dc-dc converters that deliver up to 80A of output current. These modules operate over a wide range of input voltage (VIN =4.5Vdc - 14Vdc) and provide a precisely regulated output voltage from 0.6Vdc to 2Vdc, programmable via an external resistor and/or PMBus control. Features include a digital interface using the PMBus protocol, remote On/Off, adjustable output voltage, over current, over voltage and over temperature protection. The PMBus TM interface supports many commands to both control and monitor the module. The module also includes the Digital Tunable Loop feature that allows the user to optimize the dynamic response of the converter with reduced amounts 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) August 1, 2017 ©2017 General Electric Company. All rights reserved. Version 3.1 Data Sheet GE TM 80A GigaDLynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14Vdc input; 0.6Vdc to 2.0Vdc output; 80A 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 technical requirements. Exposure to absolute maximum ratings for extended periods can adversely affect the device reliability. Parameter Device Symbol Min Max Unit Input Voltage All V -0.3 15 V IN Continuous SEQ, ADDR0, ADDR1, RTUNE, VTRACK 2.0 V VS+ All 3.0 V ON/OFF 15 V SYNC, CLK, DATA, SMBALERT#, PGOOD All 5.5 V Operating Ambient Temperature All TA -40 85 °C (see Thermal Considerations section) Storage Temperature All T -55 125 °C stg 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 4.5  14 Vdc Maximum Input Current All IIN,max 46 Adc (VIN=4.5V to 14V, IO=IO, max ) V = 0.6 Vdc I 145 mA O,set IN,No load Input No Load Current (V = 12Vdc, I = 0, module enabled) IN O V = 2.0Vdc I 190 mA O,set IN1No load Input Stand-by Current All I 45 mA IN,stand-by (VIN = 12Vdc, module disabled) 2 2 Inrush Transient All I t 1 A s Input Noise on nominal output (VIN=VIN, nom and IO=IO, min to IO,max, Cin = 6 x 22µF + 1 x 470uF} Peak-to-Peak All 500 mVpp (Full Bandwidth) Input Reflected Ripple Current, peak-to-peak (5Hz to 20MHz, 1μH source impedance; VIN =0 to 14V, IO= All 40 mAp-p IOmax ; See Test Configurations) Input Ripple Rejection (120Hz) All -55 dB 0 to 70°C -0.5 +0.5 Output Voltage Set-point (with 0.1% tolerance for external V % V O, set O, set resistor used to set output voltage) -40 to +85°C -0.8 +0.8 1 Voltage Regulation Line Regulation (V =V to IN IN, min 3 mV V ) IN, max Load (I =I to I ) Regulation All 3 mV O O, min O, max 1 Worst case Line and load regulation data, all temperatures, from design verification testing as per IPC9592. August 1, 2017 ©2017 General Electric Company. All rights reserved. Page 2 Data Sheet GE TM 80A GigaDLynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14Vdc input; 0.6Vdc to 2.0Vdc output; 80A Output Current Electrical Specifications (continued) Parameter Device Symbol Min Typ Max Unit Adjustment Range (selected by an external resistor) (Some output voltages may not be possible depending on the All VOUT 0.6 2.0 Vdc input voltage – see Feature Descriptions Section) PMBus Adjustable Output Voltage Range All VO,adj 0.5 - 2.0 Vdc PMBus Output Voltage Adjustment Step Size All 0.233 %V O,set Remote Sense Range All 0.4 Vdc Output Ripple and Noise on nominal output (V =V and I =I to I Co = 6 x 47µF + 4 x 0.1µF, IN IN, nom O O, min O, max Cin = 6 x 22µF + 1 x 470µF Peak-to-Peak (Full bandwidth) 30 mV pk-pk RMS (Full bandwidth) All 12 mV rms External Capacitance Minimum output capacitance (ESR ≥ 3 mΩ) All CO,min 470   μF Maximum output capacitance (ESR ≥ 3 mΩ) All C 16000 μF O, max   Output Current (in either sink or source mode) All Io 0 80 Adc Output Current Limit Inception (Hiccup Mode) All IO, lim 91 Adc (current limit does not operate in sink mode) Output Short-Circuit Current All I 14.6 Arms O, s/c (V≤260mV) (Hiccup Mode ) O Efficiency V = 0.6Vdc η 82.4 % O,set V = 12Vdc, T=25°C V = 0.8Vdc η 85.7 % IN A O, set I =I V = V V = 1.0Vdc η 88.1 % O O, max , O O,set O,set V = 1.2Vdc η 89.6 % O,set VO, set = 1.5Vdc η 91.2 % VO,set = 2.0Vdc η 92.8 % Switching Frequency All fsw - 400 - kHz Frequency Synchronization All Synchronization Frequency Range All -10 +10 % High-Level Input Voltage All V 2.0 V IH,SYNC Low-Level Input Voltage All V 0.4 V IL,SYNC Minimum Pulse Width, SYNC All t 50 ns SYNC General Specifications Parameter Device Min Typ Max Unit Calculated MTBF (I =0.8I , T =40°C) Telecordia Issue 3 Method O O, max A All 39,165,215 Hours 1 Case 3 Weight 22.5(0.793) g (oz.)   August 1, 2017 ©2017 General Electric Company. All rights reserved. Page 3 Data Sheet GE TM 80A GigaDLynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14Vdc input; 0.6Vdc to 2.0Vdc output; 80A Output Current 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 (V =V to V ; open collector or equivalent, IN IN, min IN, max 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 IIH — — 1 mA Input High Voltage All VIH 2 — V Vdc IN, max Logic Low (Module ON) Input low Current All IIL — — 10 μA Input Low Voltage All VIL -0.2 — 0.4 Vdc Device Code with suffix “4” - Positive 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 ON) Input High Current All IIH — — 10 uA Input High Voltage All VIH 2 — VIN, max Vdc Logic Low (Module OFF) Input low Current All IIL — — 300 μA Input Low Voltage All VIL -0.2 — 0.4 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 All Tdelay — 5.0 — ms instant at which VIN = VIN, min until Vo = 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 which Von/Off is enabled until Vo = All Tdelay — 500 — µs 10% of Vo, set) Output voltage Rise time (time for Vo to rise from 10% of Vo, set to 90% of All Trise — 2.0 — msec Vo, set) o Output voltage overshoot (TA = 25 C VIN= VIN, min to VIN, max,IO = IO, min to IO, max) % VO, Output 3.0 With or without maximum external capacitance set Vin ≤ 6.5V 105 Over Temperature Protection (See Thermal Considerations section) T °C ref Vin > 6.5V 125 Vin ≤ 6.5V 95 PMBus Over Temperature Warning Threshold* T °C WARN Vin > 6.5V 115 Tracking Accuracy (VIN, min to VIN, max; IO, min to IO, max VSEQ < Vo) (Power-Up: 0.5V/ms) All VSEQ –Vo 100 mV (Power-Down: 0.5V/ms) All VSEQ –Vo 100 mV Input Undervoltage Lockout Turn-on Threshold All 4.5 Vdc Turn-off Threshold All 4.1 Vdc Hysteresis All 0.25 Vdc PMBus Adjustable Input Under Voltage Lockout Thresholds All 4.5 14 Vdc Resolution of Adjustable Input Under Voltage Threshold All 10 mV * Over temperature Warning – Warning may not activate before alarm and unit may shut down before warning. August 1, 2017 ©2017 General Electric Company. All rights reserved. Page 4 Data Sheet GE TM 80A GigaDLynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14Vdc input; 0.6Vdc to 2.0Vdc output; 80A Output Current Feature Specifications (cont.) Parameter Device Symbol Min Typ Max Units PGOOD (Power Good) Signal Interface, V  5VDC supply Overvoltage threshold for PGOOD ON All 108 %VO, set Overvoltage threshold for PGOOD OFF All 110 %VO, set Undervoltage threshold for PGOOD ON All 92 %VO, set Undervoltage threshold for PGOOD OFF All 90 %V O, set Sink/source current capability into PGOOD pin All 2 mA * Over temperature Warning – Warning may not activate before alarm and unit may shut down before warning. August 1, 2017 ©2017 General Electric Company. All rights reserved. Page 5 Data Sheet GE TM 80A GigaDLynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14Vdc input; 0.6Vdc to 2.0Vdc output; 80A Output 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 2.0 V Input Low Voltage (CLK, DATA) VIL 0.8 V Output current – low (CLK, DATA, SMBALERT#) IOL 2 mA PMBus Operating frequency range Slave Mode FPMB 10 400 500 kHz tHD:DAT Data hold time 300 ns tSU:DAT Data setup time 100 ns tTIMEOUT Clock low time-out 25 35 ms t LOW Clock low period 1.3 μs tHIGH Clock high period 0.6 μs tF Clock or data fall time 300 ns t R Clock or data fall time 300 ns Internal Pull-up resistors on DATA, CLK and SMBALRT 50K Ω pins Measurement System Characteristics Read delay time tDLY 153 192 231 μs Output current measurement range IRNG 0 100 A Output current measurement resolution IRES 197 mA % of 0°C to 85°C ±5 Io,max Output current measurement gain accuracy IACC -40°C to +85°C -3 +7 A Output current measurement offset I 0.2 A OFST V measurement range 0.5 2.0 V OUT VOUT V measurement resolution OUT VOUT(res) 0.7 mV VOUT measurement accuracy V ±1 % OUT(gain) VOUT measurement offset -5 5 mV VOUT(ofst) VIN measurement range VIN(rng) 0 14 V VIN measurement resolution V 7.0 mV IN(res) VIN measurement accuracy ±1 % VIN August 1, 2017 ©2017 General Electric Company. All rights reserved. Page 6 Data Sheet GE TM 80A GigaDLynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14Vdc input; 0.6Vdc to 2.0Vdc output; 80A Output Current Characteristic Curves TM o The following figures provide typical characteristics for the 80A Digital GigaDLynx at 0.6Vo and 25 C. 90 80 70 2m/s (400LFM) 1m/s 60 (200LFM) 1.5m/s 0.5m/s (300LFM (100LFM) 50 NC 40 25 35 45 55 65 75 85 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 (50s /div) Figure 4. Transient Response to Dynamic Load Change from Figure 3. Typical output ripple and noise (C = 6x47µF O 25% to 75% at 12Vin, Co= 36x 47µF + 14x 1000µF, R = TUNE ceramic, VIN = 12V, Io = Io,max, ). 4.22kΩ TIME, t (2ms/div) TIME, t (2ms/div) Figure 6. Typical Start-up Using Input Voltage (VIN = 12V, Io = Figure 5. Typical Start-up Using On/Off Voltage (Io = Io,max). Io,max). August 1, 2017 ©2017 General Electric Company. All rights reserved. Page 7 OUTPUT VOLTAGE ON/OFF VOLTAGE OUTPUT VOLTAGE V (V) (200mV/div) V (V) (5V/div) V (V) (10mV/div) EFFICIENCY,  (%) O ON/OFF O OUTPUT VOLTAGE INPUT VOLTAGE OUTPUT CURRENT, OUTPUT VOLTAGE VO (V) (200mV/div) VIN (V) (5V/div) IO (A) (20A/div) VO (V) (10mV/div) OUTPUT CURRENT, Io (A) Data Sheet GE TM 80A GigaDLynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14Vdc input; 0.6Vdc to 2.0Vdc output; 80A Output Current Characteristic Curves TM o The following figures provide typical characteristics for the 80A GigaDLynx at 1.0Vo and 25 C 90 80 70 2m/s (400LFM) 60 1m/s (200LFM) 1.5m/s (300LFM 0.5m/s 50 (100LFM) NC 40 25 35 45 55 65 75 85 O OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA C Figure 8. Derating Output Current versus Ambient Figure 7. Converter Efficiency versus Output Current. Temperature and Airflow. TIME, t (1s/div) TIME, t (50s /div) Figure 10. Transient Response to Dynamic Load Change from Figure 9. Typical output ripple and noise (CO= 6x47µF 25% to 75% at 12Vin, Co= 30x 47µF + 11x 1000µF, R = TUNE Ceramic, VIN = 12V, Io = Io,max, ). 3.74kΩ 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). August 1, 2017 ©2017 General Electric Company. All rights reserved. Page 8 OUTPUT VOLTAGE ON/OFF VOLTAGE OUTPUT VOLTAGE VO (V) (500mV/div) VON/OFF (V) (5V/div) VO (V) (10mV/div) EFFICIENCY,  (%) OUTPUT VOLTAGE INPUT VOLTAGE OUTPUT CURRENT OUTPUT VOLTAGE V (V) (500mV/div) V (V) (5V/div) I (A) (20A/div) V (V) (10mV/div) OUTPUT CURRENT, Io (A) O IN O O Data Sheet GE TM 80A GigaDLynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14Vdc input; 0.6Vdc to 2.0Vdc output; 80A Output Current Characteristic Curves TM o The following figures provide typical characteristics for the 80A Digital GigaDLynx at 1.2Vo and 25 C. 90 80 70 2m/s (400LFM) 60 1m/s 1.5m/s (200LFM) (300LFM 50 0.5m/s (100LFM) NC 40 25 35 45 55 65 75 85 O OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA C Figure 14. Derating Output Current versus Ambient Figure 13. Converter Efficiency versus Output Current. Temperature and Airflow. TIME, t (1s/div) TIME, t (50s /div) Figure 16. Transient Response to Dynamic Load Change from Figure 15. Typical output ripple and noise (CO=6x47µF 25% to 75% at 12Vin, Co= 26x 47µF + 9x 1000µF, RTUNE = ceramic, VIN = 12V, Io = Io,max, ). 3.24kΩ 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). August 1, 2017 ©2017 General Electric Company. All rights reserved. Page 9 OUTPUT VOLTAGE ON/OFF VOLTAGE OUTPUT VOLTAGE V (V) (500mV/div) V (V) (5V/div) V (V) (10mV/div) EFFICIENCY,  (%) O ON/OFF O OUTPUT VOLTAGE INPUT VOLTAGE OUTPUT CURRENT, OUTPUT VOLTAGE V (V) (500mV/div) V (V) (5V/div) I (A) (20A/div) V (V) (10mV/div) OUTPUT CURRENT, Io (A) O IN O O Data Sheet GE TM 80A GigaDLynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14Vdc input; 0.6Vdc to 2.0Vdc output; 80A Output Current Characteristic Curves TM o The following figures provide typical characteristics for the 80A Digital GigaDLynx at 1.5Vo and 25 C. 90 80 70 2m/s (400LFM) 60 1m/s 1.5m/s (200LFM) (300LFM 50 0.5m/s (100LFM) NC 40 25 35 45 55 65 75 85 O OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA C Figure 20. Derating Output Current versus Ambient Figure 19. Converter Efficiency versus Output Current. Temperature and Airflow. TIME, t (1s/div) TIME, t (50s /div) Figure 22. Transient Response to Dynamic Load Change from Figure 21. Typical output ripple and noise (C = 6x47µF O 25% to 75% at 12Vin, Co= 25x 47µF + 8x 1000µF, R = TUNE ceramic, VIN = 12V, Io = Io,max, ). 6.81kΩ 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). August 1, 2017 ©2017 General Electric Company. All rights reserved. Page 10 OUTPUT VOLTAGE ON/OFF VOLTAGE OUTPUT VOLTAGE VO (V) (500mV/div) VON/OFF (V) (5V/div) VO (V) (10mV/div) EFFICIENCY,  (%) OUTPUT VOLTAGE INPUT VOLTAGE OUTPUT CURRENT, OUTPUT VOLTAGE V (V) (500mV/div) V (V) (5V/div) I (A) (20A/div) V (V) (10mV/div) OUTPUT CURRENT, Io (A) O IN O O Data Sheet GE TM 80A GigaDLynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14Vdc input; 0.6Vdc to 2.0Vdc output; 80A Output Current Characteristic Curves TM o The following figures provide typical characteristics for the 80A Digital GigaDLynx at 2.0Vo and 25 C. 90 80 70 2m/s (400LFM) 60 1m/s (200LFM) 1.5m/s (300LFM 0.5m/s 50 (100LFM) NC 40 25 35 45 55 65 75 85 O OUTPUT CURRENT, IO (A) AMBIENT TEMPERATURE, TA C Figure 26. Derating Output Current versus Ambient Figure 25. Converter Efficiency versus Output Current. Temperature and Airflow. TIME, t (1s/div) TIME, t (50s /div) Figure 28. Transient Response to Dynamic Load Change from Figure 27. Typical output ripple and noise (CO= 6x47µF 25% to 75% at 12Vin, Co= 20x 47µF + 7x 1000µF, RTUNE = ceramic, VIN = 12V, Io = Io,max, ). 6.04KΩ 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). August 1, 2017 ©2017 General Electric Company. All rights reserved. Page 11 OUTPUT VOLTAGE ON/OFF VOLTAGE OUTPUT VOLTAGE VO (V) (500mV/div) VON/OFF (V) (5V/div) VO (V) (10mV/div) EFFICIENCY,  (%) OUTPUT VOLTAGE INPUT VOLTAGE OUTPUT CURRENT, OUTPUT VOLTAGE V (V) (500mV/div) V (V) (5V/div) I (A) (20A/div) V (V) (10mV/div) OUTPUT CURRENT, Io (A) O IN O O Data Sheet GE TM 80A GigaDLynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14Vdc input; 0.6Vdc to 2.0Vdc output; 80A Output Current Design Considerations Input Filtering TM The 80A GigaDLynx module must be powered from a low-impedance source. An inductive source can affect the stability of the module. An input capacitance must be placed directly adjacent to the input pins of the module, to minimize input ripple voltage and ensure module stability. To minimize input voltage ripple, ceramic capacitors are recommended at the input of the module. Figure 31 shows the input ripple voltage for various output voltages at 80A of load current with 6x22 µF + 3x0.1 µF + 1x470 µF OSCON electrolytic capacitor at an input of 12V. Figure 32. Output ripple voltage for various output voltages with external 6 x 47µF + 4 x 0.1 µF + 2 x 4.7nF ceramic capacitors at the output (80A load). Input voltage is 12V. Safety Considerations For safety agency approval the power module must be installed in compliance with the spacing and separation requirements of the end-use safety agency standards, i.e., nd ANSI/UL 60950-1 2 Revised October 14, 2014, CSA C22.2 No. 60950-1-07, Second Ed. + A2:2014 (MOD), DIN EN 60950- 1:2006 + A11:2009 + A1:2010 +A12:2011, + A2:2013 (VDE0805 Teil 1: 2014-08)(pending). For the converter output to be considered meeting the Figure 31. Input ripple voltage for various output requirements of safety extra-low voltage (SELV), the input voltages with (3 x 0.1µF + 6 x 22 µF) ceramic + 1 x 470µF must meet SELV requirements. The power module has OSCON electrolytic capacitor at the input (80A load). extra-low voltage (ELV) outputs when all inputs are ELV. Input voltage is 12V. For input voltages greater than 7V, single external 40A 465 Output Filtering Series Fast Acting Littelfuse fuse on the ungrounded input pin is recommended. For input voltages less than 7V, two These modules are designed for low output ripple voltage 30A 678 Series Bel Fast Acting Fuses in parallel is and will meet the maximum output ripple specification with recommended. minimum of 6x47µF 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. August 1, 2017 ©2017 General Electric Company. All rights reserved. Page 12 Data Sheet GE TM 80A GigaDLynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14Vdc input; 0.6Vdc to 2.0Vdc output; 80A Output Current trim resistor, RTRIM for a desired output voltage, should be Analog Feature Descriptions selected as per the following equation: Remote On/Off Vref R   2k TRIM The GigaDLynx 80A module can be turned ON and OFF (VoutVref ) either by using the ON/OFF pin (Analog interface) or through the PMBus interface (Digital). The module can be configured in a number of ways through the PMBus interface to react to the ON/OFF input:  Module ON/OFF is controlled only through the analog interface (digital interface ON/OFF commands are ignored)  Module ON/OFF is controlled only through the PMBus interface (analog interface is ignored)  Module ON/OFF is controlled by either the analog or digital interface Figure 33. Circuit configuration for programming output The default state of the module (as shipped from the factory) voltage using an external resistor. is to be controlled by the analog interface only. If the digital RTRIM is the external resistor in kΩ interface is to be enabled, or the module is to be controlled only through the digital interface, this change must be made Vout is the desired output voltage. through the PMBus. These changes can be made and Vref = 0.6V written to non-volatile memory on the module so that it is remembered for subsequent use. Table 1 provides Rtrim values required for some common output voltages. Analog On/Off TM Table 1 The 80A GigaDLynx power modules feature an On/Off pin for remote On/Off operation. With the Negative Logic VO, set (V) RTRIM (KΩ) On/Off option, (see Ordering Information), the module turns 0.6 Open OFF during logic High and ON during logic Low. The On/Off 0.8 6.0 signal should be always referenced to ground. Leaving the 1.0 3.0 On/Off pin disconnected will turn the module ON when input voltage is present. With the positive logic on/off option, the 1.2 2.0 module turns ON during logic high and OFF during logic low. 1.5 1.33 2.0 0.866 Digital On/Off Digital Output Voltage Adjustment Please see the Digital Feature Descriptions section. Please see the Digital Feature Descriptions section. Monotonic Start-up and Shutdown Remote Sense The module has monotonic start-up and shutdown behavior The power module has a differential Remote Sense feature on the output voltage for any rated input voltage, output to minimize the effects of distribution losses by regulating voltage and current, and operating temperature. the voltage between the sense pins (VS+ and VS-). The Startup considerations at Low Temperature. voltage drop between the sense pins and the VOUT and GND pins of the module should not exceed 0.4V. GDT080 is able to handle specified full-load start-up for ambient temperatures above or equal to -10ºC. Below -10ºC Output Voltage Sequencing ambient temperature, the load has to be limited to 75% of The power module includes a sequencing feature, EZ- specified full-load. SEQUENCE that enables users to implement various types of Startup into Pre-biased Output output voltage sequencing in their applications. This is accomplished via an additional sequencing pin. This pin is The module can start into a pre-biased output as long as the disabled as a factory default setting, if using this feature it pre-bias voltage is 0.5V less than the set output voltage. should be enabled using the MFR_FEATURES_CONTROL (E7h) command. When not using the sequencing feature, Analog Output Voltage Programming leave it unconnected and leave the default setting The output voltage of the module is programmable to any unchanged. voltage from 0.6 to 2.0 Vdc by connecting a resistor The voltage applied to the SEQ pin should be scaled down between the Trim and VS- pins of the module as shown in by the same ratio as used to scale the output voltage down Fig 33. to the reference voltage of the module. This is accomplished Without an external resistor between the Trim and VS- pins, by an external resistive divider connected across the the output of the module will be 0.6 Vdc. The value of the sequencing voltage before it is fed to the SEQ pin as shown August 1, 2017 ©2017 General Electric Company. All rights reserved. Page 13 Data Sheet GE TM 80A GigaDLynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14Vdc input; 0.6Vdc to 2.0Vdc output; 80A Output Current in Fig 34. In addition, a small capacitor (suggested value between the RTUNE and GND pins to select the appropriate 100pF) should be connected across the lower resistor R1. pre-tuned compensation. For all DLynx modules, the minimum recommended delay VOUT between the ON/OFF signal and the sequencing signal is VS+ 10ms to ensure that the module output is ramped up according to the sequencing signal. This ensures that the module soft-start routine is completed before the MODULE sequencing signal is allowed to ramp up. C OUT GDT080 Module TRIM RTUNE V R TRIM SEQ R TUNE VS- 2K SIG_GND SEQ GND R1=Rtrim SIG_GND 100 pF Figure 35. Circuit diagram showing connection of RTUNE to tune the control loop of the module. Figure 34. Circuit showing connection of the sequencing for different output capacitor Recommended values of RTUNE signal to the SEQ pin. combinations are given in Table 2. The GDT080 pre-tuned compensation can be divided into four different banks When the scaled down sequencing voltage is applied to the (COMP0, COMP1, COMP2 and COMP3) that are available to the SEQ pin, the output voltage tracks this voltage until the user to compensate the control loop for various values and output reaches the set-point voltage. The final value of the combinations of output capacitance and to obtain reliable sequencing voltage must be set higher than the set-point and stable performance under different conditions. Each voltage of the module. The output voltage follows the bank consists of seven different sets of compensation sequencing voltage on a one-to-one basis. By connecting coefficients pre-calculated for different values of output multiple modules together, multiple modules can track their capacitance. The four banks are set up as follows: output voltages to the voltage applied on the SEQ pin.  COMP0: Recommended for the case where all of the The module’s output can track the SEQ pin signal with output capacitance is composed of only ceramic slopes of up to 0.5V/msec during power-up or power-down. capacitors. The range of external output capacitance is To initiate simultaneous shutdown of the modules, the SEQ from the required minimum value of 470µF to a pin voltage is lowered in a controlled manner. The output maximum of 7500µF. voltage of the modules tracks the voltages below their set- point voltages on a one-to-one basis. A valid input voltage  COMP1: For the most commonly used mix of ceramic must be maintained until the tracking and output voltages and polymer type capacitors that have higher output reach ground potential. capacitance in a smaller size and for output voltages between 0.6V to 1.2V. The range of output capacitance is Digital Compensator from 470µF to a maximum of 15,692uF. This is the The GDT080 module uses digital control to regulate the combination of output capacitance and compensation output voltage. As with all POL modules, external capacitors that can achieve the best transient response at lowest are usually added to the output of the module for two cost and smallest size. For example, with the maximum reasons: to reduce output ripple and noise (see Figure 32 for example data) and to reduce output voltage deviations from output capacitance of 15,692uF, and selecting RTUNE = the steady-state value in the presence of dynamic load 4.22kΩ, transient deviation can be as low as 15mV, for a current changes. Adding external capacitance however 50% load step (0 to 40A). affects the voltage control loop of the module, typically  COMP2: Same range and types of capacitance as causing the loop to slow down with sluggish response. COMP1, but for an output voltage range from 1.2V to 2V. Larger values of external capacitance could also cause the  COMP3: Suitable also for a mix of ceramic and higher module to become unstable. In the GDT080, using a feature TM called the Digital Tunable Loop , the digital compensation ESR polymers or electrolytic capacitors such as OSCON. can be adjusted externally to optimize transient response and also ensure stability for a wide range of external Selecting R according to Table 2 will ensure stable TUNE capacitance, as well as with different types of output operation of the module with sufficient stability margin as capacitance. This is done by allowing the user to select well as yield optimal transient response. among several pre-tuned compensation choices to select the one most suited to the transient response needs of the load. Figure 35 shows how the resistor RTune is connected August 1, 2017 ©2017 General Electric Company. All rights reserved. Page 14 Data Sheet GE TM 80A GigaDLynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14Vdc input; 0.6Vdc to 2.0Vdc output; 80A Output Current Table 2. Recommended R Compensation TUNE Output Capacitance Number of Output Total Output Compensation RTUNE resistor (kΩ) Type Capacitors** Capacitance (µF)** Bank Ceramic 18 x 47µ 846 Comp 0 0 Ceramic 18 x 47µ + 9 x 100µ 1746 Comp 0 0.392 2446 Comp 0 0.576 Ceramic 18 x 47µ + 16 x 100µ Ceramic 18 x 47µ + 22 x 100µ 3046 Comp 0 0.787 Ceramic 18 x 47µ + 40 x 100µ 4846 Comp 0 1 Ceramic 18 x 47µ + 52 x 100µ 6046 Comp 0 1.24 Ceramic 18 x 47µ + 83 x 100µ 9146 Comp 0 1.5 Ceramic + Polymer 16 x 47µ + 2 x 1000µ 2752 Comp 1 1.78 Ceramic + Polymer 16 x 47µ + 3 x 1000µ 3752 Comp 1 2.1 5752 Comp 1 2.43 Ceramic + Polymer 16 x 47µ + 5 x 1000µ Ceramic + Polymer 16 x 47µ + 7 x 1000µ 7752 Comp 1 2.8 Ceramic + Polymer 16 x 47µ + 9 x 1000µ 9752 Comp 1 3.24 Ceramic + Polymer 18 x 47µ + 12 x 1000µ 12,486 Comp 1 3.74 Ceramic + Polymer 18 x 47µ + 14 x 1000µ 14,846 Comp 1 4.22 Ceramic + Polymer 16 x 47µ + 2 x 1000µ 2752 Comp 2 4.75 Ceramic + Polymer 16 x 47µ + 3 x 1000µ 3752 Comp 2 5.36 Ceramic + Polymer 16 x 47µ + 5 x 1000µ 5752 Comp 2 6.04 Ceramic + Polymer 16 x 47µ + 7 x 1000µ 7752 Comp 2 6.81 Ceramic + Polymer 16 x 47µ + 9 x 1000µ 9752 Comp 2 7.68 Ceramic + Polymer 18 x 47µ + 12 x 1000µ 12,846 Comp 2 8.66 Ceramic + Polymer 18 x 47µ + 14 x 1000µ 14,846 Comp 2 9.53 Ceramic + Electrolytic 16 x 47µ + 4 x 470µ 2632 Comp 3 10.5 Ceramic + Electrolytic 16 x 47µ + 7 x 470µ 4042 Comp 3 11.8 Ceramic + Electrolytic 16 x 47µ + 9 x 470µ 4982 Comp 3 13 Ceramic + Electrolytic 18 x 47µ + 14 x 470µ 7246 Comp 3 14.3 10,246 Comp 3 15.8 Ceramic + Electrolytic 18 x 47µ + 20 x 470µ Ceramic + Electrolytic 18 x 47µ + 24 x 470µ 12,126 Comp 3 17.4 Ceramic + Electrolytic 18 x 47µ + 30 x 470µ 14,946 Comp 3 19.1 ** Total output capacitance includes the capacitance inside the module of value 8 x 47µF (3mΩ ESR). Note: The capacitors used in the digital compensation Loop tables are 47μF/3 mΩ ESR ceramic, 100uF/3.2mΩ ceramic, 1000 μF/6mΩ ESR polymer capacitor and 470uF/9mΩ ESR Polymer capacitor. In applications with tight output voltage limits in the Table 3. Recommended values of RTUNE to obtain transient presence of dynamic current loading, additional output deviation of 2% of Vout for a 40A step load with Vin=12V. capacitance will be required. Table 3 lists recommended VO 2V 1.2V 0.6V values of RTUNE in order to meet 2% output voltage deviation 14x47uF + 28x47uF + 36x47uF + limits for some common output voltages in the presence of 5x1000µF 9x1000µF 14x1000µF CO a 40A to 80A step change (50% of full load), with an input polymer polymer polymer R (kΩ) 9.53 3.24 4.22 voltage of 12V. TUNE ∆V(mV) 32 19.8 12 Please contact your GE technical representative to obtain more details of this feature as well as for guidelines on how Power Module Wizard to select the right value of external RTUNE to tune the module for best transient performance and stable operation GE offers a free web based easy to use tool that helps users for other output capacitance values. Simulation models are simulate the Tunable Loop performance of the GDT080. Go to http://ge.transim.com/pmd/Home and sign up for a free also available via the GE Power Module Wizard to predict account and use the module selector tool. The tool also stability characteristics and transient response. offers downloadable Simplis/Simetrix models that can be used to assess transient performance, module stability, etc. August 1, 2017 ©2017 General Electric Company. All rights reserved. Page 15 Data Sheet GE TM 80A GigaDLynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14Vdc input; 0.6Vdc to 2.0Vdc output; 80A Output Current overtemperature, overcurrent or loss of regulation occurs Digital Output Voltage Margining that would result in the output voltage going outside the Please see the Digital Feature Descriptions section. specified thresholds. The default PGOOD thresholds are ± 15%. Overcurrent Protection (OCP) The PGOOD terminal should be connected through a pullup To provide protection in a fault (output overload) condition, resistor (suggested value 100K) to a source of 5VDC or the unit has internal current-limiting circuitry on the output lower. and can endure current limiting continuously. The module overcurrent response is non-latching shutdown with Synchronization automatic recovery. The Overcurrent Protection response time is programmable via the PMBus through The module switching frequency can be synchronized to an manufacturer-specific commands. The unit operates external signal within the specified range. Synchronization is normally once the output current is brought back into its done by applying the external signal to the SYNC pin of the module as shown in Fig. 36, with the converter being specified range. synchronized by the rising edge of the external signal. The Load Transient Considerations Electrical Specifications table specifies the requirements of the external SYNC signal. If using this feature it should be The GDT080 module can achieve 100% load transient above enabled using the MFR_FEATURES_CONTROL (E7h) -10ºC ambient temperature. Below -10ºC ambient command. If the SYNC pin is not used, leave the default temperature, the load transient is limited to a maximum of setting unchanged and the module runs at the default 75% of specified full load current. switching frequency. Digital Sequencing MODULE The module supports digital sequencing operation. Both ratiometric and simultaneous sequencing are supported. SYNC Overtemperature Protection + To provide protection in a fault condition, the unit has a thermal shutdown circuit. The unit will shut down if the ─ overtemperature threshold of 125°C (typ) is exceeded at the GND thermal reference point Tref . Once the unit goes into thermal Figure 36. External source connections to synchronize shutdown it will wait to cool before attempting to restart. switching frequency of the module. The overtemperature threshold is dependent on input voltage, with the 125°C value applicable for input voltages > Measuring Output Current, Output Voltage and 6.5V and is changed to 105°C for input voltages ≤ 6.5V. Input Voltage Digital Temperature Status via PMBus Please see the Digital Feature Descriptions section. Please see the Digital Feature Descriptions section. Digitally Adjustable Output Over and Under Voltage Protection Please see the Digital Feature Descriptions section. Input Undervoltage Lockout At input voltages below the input undervoltage lockout limit, module operation is disabled. The module will begin to operate at an input voltage above the undervoltage lockout turn-on threshold. Digitally Adjustable Input Undervoltage Lockout Please see the Digital Feature Descriptions section. Digitally Adjustable Power Good Thresholds Please see the Digital Feature Descriptions section. Power Good The module provides a Power Good (PGOOD) signal that goes high to indicate output voltage being within a specified range. The signal is implemented as push-pull circuit with an internal pull-up resistor of 20K to 3.3V. The PGOOD signal is de-asserted to a low state if any condition such as August 1, 2017 ©2017 General Electric Company. All rights reserved. Page 16 Data Sheet GE TM 80A GigaDLynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14Vdc input; 0.6Vdc to 2.0Vdc output; 80A Output Current address resistor value is outside the range specified in Table Digital Feature Descriptions 4, the module will respond to address 127. PMBus Interface Capability Table 4 TM The 80A Digital GigaDLynx power modules have a PMBus PMBus Address Table interface that supports both communication and control. ADDR1 Resistor Values The modules supports a subset of version 1.1 of the PMBus ADDR0 0 680 1.2K 1.8K 2.7K 3.9K 4.7K 5.6K specification (see Table 6 for a list of the specific commands Resistor Values supported). Most module parameters can be programmed 0 64 16 32 48 64 80 96 112 using PMBus and stored as defaults for later use. 680 1 17 33 49 65 81 97 113 All communication over the module PMBus interface will 1.2K 2 18 34 50 66 82 98 114 work with or without Packet Error Checking (PEC) . The 1.8K 3 19 35 51 67 83 99 115 module generates the correct PEC byte for all transactions, 2.7K 4 20 36 52 68 84 100 116 and checks the PEC byte if sent by the master. 3.9K 5 21 37 53 69 85 101 117 The module also supports the SMBALERT# response 6 22 38 54 70 86 102 118 4.7K protocol whereby the module alerts the bus master if it 5.6K 7 23 39 55 71 87 103 119 wants to talk. For more information on the SMBus alert response protocol, see the System Management Bus 6.8K 8 24 40 56 72 88 104 120 (SMBus) specification. 9 25 41 57 73 89 105 121 8.2K The module has non-volatile memory that is used to store 10K 10 26 42 58 74 90 106 122 configuration settings. Not all settings programmed into the 12K 11 27 43 59 75 91 107 123 device are automatically saved into this non-volatile 15K 12 28 44 60 76 92 108 124 memory, only those specifically identified as capable of 13 29 45 61 77 93 109 125 18K being stored are saved (see Table 6 for which command 22K 14 30 46 62 78 94 110 126 parameters can be saved in non-volatile storage). 27K 15 31 47 63 79 95 111 127 PMBus Data Format For commands that set thresholds, voltages or report such Both 100kHz and 400kHz bus speeds are supported by the quantities, the module supports the “Linear” data format module. Connection for the PMBus interface should follow among the three data formats supported by PMBus. The the High Power DC specifications given in section 3.1.3 in the Linear Data Format is a two byte value with an 11-bit, two’s SMBus specification V2.0 for the 400kHz bus speed or the complement mantissa and a 5-bit, two’s complement Low Power DC specifications in section 3.1.2. exponent. The format of the two data bytes is shown below: ADDR1 Data Byte High Data Byte Low ADDR0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 R R A1 A2 Exponent Mantissa MSB MSB SIG_GND The value is of the number is then given by Figure 37. Circuit showing connection of resistors used to Exponent Value = Mantissa x 2 set the PMBus address of the module. PMBus Enabled On/Off PMBus Addressing The output of the module can be turned on and off via the PMBus interface. The OPERATION command is used to The power module is addressed through the PMBus using a actually turn the module on and off via the PMBus, while the device address. The module supports 128 possible ON_OFF_CONFIG command configures the combination of addresses (0 to 127 in decimal) which can be set using analog ON/OFF pin input and PMBus commands needed to resistors connected from the ADDR0 and ADDR1 pins to turn the module on and off. Bit [7] in the OPERATION SIG_GND. Note that some of these addresses (0, 1, 2, 3, 4, 5, command data byte enables the module, with the following 6, 7, 8, 9, 10, 11 12, 40, 44, 45, 55 in decimal) are reserved functions: according to the SMBus specification and may not be useable. The address is set in the form of two octal (0 to 7) digits, with each pin setting one digit. The ADDR1 pin sets the high order digit and ADDR0 sets the low order digit. The resistor values suggested for each digit are shown in Table 4 (E96 series resistors are recommended). Note that if either August 1, 2017 ©2017 General Electric Company. All rights reserved. Page 17 Data Sheet GE TM 80A GigaDLynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14Vdc input; 0.6Vdc to 2.0Vdc output; 80A Output Current 0 : Output is disabled VOUT_SCALE_MONITOR parameter. The read-out of output 1 : Output is enabled voltage also depends on VOUT_SCALE_MONITOR. If the correct VOUT_SCALE_MONITOR is not used, the output This module uses the lower five bits of the ON_OFF_CONFIG voltage read-out will be wrong. The VOUT_SCALE_MONITOR data byte to set various ON/OFF options as follows: parameter is defined by the ratio of internal reference of the controller to the nominal output voltage selected by R Trim Bit Position 4 3 2 1 0 resistor. Access r/w r/w r/w r/w r Function PU CMD CPR POL CPA 0.6V VOUT_SCALE_MONITOR� Default Value 1 0 1 1 0 Nominal Output Voltage For example, for a nominal output voltage of 1.2V, the PU: Sets the default to either operate any time input power VOUT_SCALE_MONITOR is equal to 0.5. Table 5 below is present or for the ON/OFF to be controlled by the analog defines values of VOUT_SCALE_MONITOR to the various ON/OFF input and the PMBus OPERATION command. This bit nominal output voltages. is used together with the CP, CMD and ON bits to determine Table 5 startup. VO, set (V) VOUT_SCALE_MONITOR Bit Value Action 0.6 1 Module powers up any time power is 0.8 0.75 0 present regardless of state of the analog 1.0 0.6 ON/OFF pin 1.2 0.5 Module does not power up until commanded by the analog ON/OFF pin and 1.5 0.4 1 the OPERATION command as programmed 2.0 0.3 in bits [2:0] of the ON_OFF_CONFIG register. When PMBus commands are used to trim or margin the CMD: The CMD bit controls how the device responds to the output voltage, the value of V is what is changed inside REF OPERATION command. the module, which in turn changes the regulated output Bit Value Action voltage of the module. Module ignores the ON bit in the 0 The nominal output voltage of the module is adjustable with OPERATION command a minimum step size of 1.406mV over a ± 25% range from Module responds to the ON bit in the 1 nominal using the VOUT_TRIM command over the PMBus. OPERATION command Output Voltage Margining Using the PMBus CPR: Sets the response of the analog ON/OFF pin. This bit Output voltage of the module can also be margined via isused together with the CMD, PU and ON bits to determine PMBus commands. The command VOUT_MARGIN_HIGH startup. sets the margin high voltage, while the command VOUT_MARGIN_LOW sets the margin low voltage. Both the Bit Value Action VOUT_MARGIN_HIGH and VOUT_MARGIN_LOW commands Module ignores the analog ON/OFF pin, i.e. use the “Linear” mode. Two bytes are used for data. The 0 ON/OFF is only controlled through the actual margined output voltage is determined by the PMBUS via the OPERATION command resistor on the TRIM, which as explained earlier is taken into Module requires the analog ON/OFF pin to 1 consideration by VOUT_SCALE_MONITOR command. The be asserted to start the unit module then sets the output voltage to the margined high or low voltage levels using the OPERATION command. Bits [7:4] are used to enable margining as follows: PMBus Adjustable Soft Start Rise Time The soft start rise time of module output is adjustable in the module via PMBus. The TON_RISE command can set the rise 1001: Vout set to VOUT_MARGIN_LOW (Ignore Fault) time in ms, and allows choosing soft start times between 1010: Vout set to VOUT_MARGIN_HIGH (Ignore Fault) 200μs and 14ms. Temperature Status via PMBus Output Voltage Adjustment Using the PMBus The module provides information related to temperature of the module through standardized PMBus commands. The VOUT_SCALE_MONITOR parameter is important for a Commands READ_TEMPERATURE1, READ_TEMPERATURE_2 number of PMBus commands related to output voltage are mapped to module temperature and internal trimming, margining, over/under voltage protection and the temperature of the PWM controller, respectively. The PGOOD thresholds. The output voltage of the module is temperature readings are returned in °C and are two bytes. determined by the value of the RTrim resistor connected between TRIM pin and analog ground VS-, as specified PMBus Adjustable Output Over and Under Voltage earlier in the data sheet. The information on the output Protection voltage divider ratio is conveyed to the module through the August 1, 2017 ©2017 General Electric Company. All rights reserved. Page 18 Data Sheet GE TM 80A GigaDLynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14Vdc input; 0.6Vdc to 2.0Vdc output; 80A Output Current The module has output over and under voltage protection capability. The PMBus command VOUT_OV_FAULT_LIMIT is STATUS_BYTE : Returns one byte of information with a used to set the output over voltage threshold. The default summary of the most critical device faults. value is configured to be 115% of the commanded output. Bit Default Flag The command VOUT_UV_FAULT_LIMIT sets the threshold Position Value that detects an output under voltage fault. The default 7 X 0 values are 85% of the commanded output voltage. Both 6 OFF 0 commands use two data bytes formatted in the Linear 5 VOUT Overvoltage 0 format. 4 IOUT Overcurrent 0 3 VIN Undervoltage 0 PMBus Adjustable Input Undervoltage Lockout 2 Temperature 0 The module allows adjustment of the input under voltage 1 CML (Comm. Memory Fault) 0 lockout and hysteresis. The command VIN_ON allows setting 0 None of the above 0 the input voltage turn on threshold, while the VIN_OFF command sets the input voltage turn off threshold. For both STATUS_WORD : Returns two bytes of information with a the VIN_ON and VIN_OFF commands, possible values are summary of the module’s fault/warning conditions. 4.5V to 14V . Both VIN_ON and VIN_OFF commands use the Low Byte “Linear” format with two data bytes. Bit Default Flag Position Value Measurement of Output Current, Output Voltage, 7 X 0 Input Voltage and output power 6 OFF 0 The module can measure key module parameters such as 5 VOUT Overvoltage 0 output current, output voltage and input voltage and 4 IOUT Overcurrent 0 provide this information through the PMBus interface. 3 VIN Undervoltage 0 2 Temperature 0 Measuring Output Current Using the PMBus 1 CML (Comm. Memory Fault) 0 The module measures output current by using the inductor 0 None of the above 0 winding resistance as a current sense element. The inductor winding resistance is then multiplied by the current gain High Byte factor that will be used to scale the measured voltage into a Bit Default current reading. This gain factor is the argument of the Flag Position Value IOUT_CAL_GAIN command, and consists of two bytes in the 7 VOUT fault or warning 0 Linear data format. During manufacture, each module is 6 IOUT fault 0 calibrated by measuring and storing the current gain factor 5 VIN Fault 0 into non-volatile storage. 4 X 0 The current measurement accuracy is also improved by 3 PowerGOOD 0 each module being calibrated during manufacture with the 2 Fan Fault 0 offset in the current reading. The IOUT_CAL_OFFSET 1 Shortciruit 0 command is used to store and read the current offset. The 0 X 0 READ_IOUT command provides tmodule average output current information. This command only supports positive STATUS_VOUT : Returns one byte of information relating to output current, i.e. current sourced from the module. If the the status of the module’s output voltage related faults. converter is sinking current a reading of 0 is provided. The Bit Default Flag READ_IOUT command returns two bytes of data in the Position Value Linear data format. 7 VOUT OV Fault 0 6 X 0 Measuring Output Voltage Using the PMBus 5 X 0 4 VOUT UV Fault 0 The module provides output voltage information using the 3 X 0 READ_VOUT command. The command returns two bytes of 2 X 0 data in Linear format 1 X 0 Measuring Input Voltage Using the PMBus 0 X 0 The module provides input voltage information using the READ_VIN command. The command returns two bytes of data in the Linear format. Reading the Status of the Module using the PMBus The module supports a number of status information commands implemented in PMBus. A 1 in the bit position indicates the fault that is flagged. August 1, 2017 ©2017 General Electric Company. All rights reserved. Page 19 Data Sheet GE TM 80A GigaDLynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14Vdc input; 0.6Vdc to 2.0Vdc output; 80A Output Current STATUS_IOUT : Returns one byte of information relating to MFR_VIN_MIN : Returns minimum input voltage as two data the status of the module’s output voltage related faults. bytes of information in Linear format (upper five bits are exponent – fixed at -2, and lower 11 bits are mantissa in Bit Default two’s complement format – fixed at 12) Flag Position Value MFR_VOUT_MIN : Returns minimum output voltage as two 7 IOUT OC Fault 0 data bytes of information in Linear format (upper five bits 6 X 0 are exponent – fixed at -10, and lower 11 bits are mantissa 5 X 0 in two’s complement format – fixed at 614) 4 X 0 3 X 0 MFR_SPECIFIC_00 : Returns information related to the type 2 X 0 of module and revision number. Bits [7:2] in the Low Byte 1 X 0 indicate the module type (xxxxxx corresponds to the PLX002 0 X 0 series of module), while bits [7:3] indicate the revision number of the module. STATUS_INPUT : Returns one byte of information relating to the status of the module’s output voltage related faults. Low Byte Bit Default Flag Bit Default Position Value Flag Position Value 7:2 Module Name xxxxxx 7 VIN_OV_FAULT 0 1:0 Reserved 10 6 X 0 5 X 0 High Byte 4 VIN_UV_FAULT 0 Bit Default 3 X 0 Flag Position Value 2 X 0 7:3 Module Revision Number None 1 X 0 2:0 Reserved 000 0 X 0 STATUS_TEMPERATURE : Returns one byte of information relating to the status of the module’s temperature related Writing to OTP (One Time Programmable) Memory faults. The GDT080 EEPROM memory can be completely written Bit Default in entirety, for example, using STORE_DEFAULT_ALL Flag Position Value command, only four times. During the situation of partial 7 OT Fault 0 rewrites, for example, when trying to store only four 6 OT Warning 0 commands using STORE_DEFAULT_CODE command four 5 X 0 times in succession, numerous writes are possible within 4 X 0 the confines of available memory. 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 data 0 5 Packet Error Check Failed 0 4 Memory Fault 0 3 X 0 2 X 0 1 X 0 0 X 0 August 1, 2017 ©2017 General Electric Company. All rights reserved. Page 20 Data Sheet GE TM 80A GigaDLynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14Vdc input; 0.6Vdc to 2.0Vdc output; 80A Output Current Summary of Supported PMBus Commands Please refer to the PMBus 1.2 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 if the 03 CLEAR_FAULTS 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 (EEPROM) on 11 STORE_DEFAULT_ALL the module. Takes about 50ms for the command to execute.* Restores all current register settings in the module from values in the module non-volatile 12 RESTORE_DEFAULT_ALL 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 Bit Position 13 STORE_DEFAULT_CODE 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 -13. 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 0 1 1 *NOTE: The EEPROM memory can be completely written in entirety (for example, using STORE_DEFAULT_ALL command) only four times. During the situation of partial rewrites, numerous writes are available within the confines of the available memory (for example, using STORE_DEFAULT_CODE command). August 1, 2017 ©2017 General Electric Company. All rights reserved. Page 21 Data Sheet GE TM 80A GigaDLynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14Vdc input; 0.6Vdc to 2.0Vdc output; 80A Output Current Table 6 (continued) Hex Non-Volatile Command Brief Description Code Memory Storage Apply a fixed offset voltage to the output voltage command value. Exponent is fixed at -13. Format Linear, two’s complement binary 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 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. Exponent is fixed at -13. 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 1 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 0 0 1 1 1 1 1 Sets the target voltage for margining the output low. Exponent is fixed at -13 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 1 0 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 Low Byte Default Value 0 1 0 0 1 0 0 0 Sets the scaling of the output voltage – equal to the ratio of internal reference Vref to the Output voltage. The internal reference is fixed at 0.6V. The output voltage read back gets scaled by the value of this parameter. 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 2A VOUT_SCALE_MONITOR YES Function Exponent Mantissa Default Value 1 0 1 1 1 0 1 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 0 0 0 0 0 0 Sets the value of input voltage at which the module turns on. Exponent is fixed at -6 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 0 0 1 0 1 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 1 0 0 1 1 August 1, 2017 ©2017 General Electric Company. All rights reserved. Page 22 Data Sheet GE TM 80A GigaDLynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14Vdc input; 0.6Vdc to 2.0Vdc output; 80A Output Current Table 6 (continued) Hex Non-Volatile Command Brief Description Code Memory Storage Sets the value of input voltage at which the module turns off. Exponent is fixed at -6 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 0 0 1 0 1 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 1 1 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 V: Variable based on factory calibration 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 39 IOUT_CAL_OFFSET YES Function Exponent Mantissa Default Value V: Variable based on factory calibration 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 voltage level for an output overvoltage fault. Exponent is fixed at -13. Format Linear, two’s compliment 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 40 VOUT_OV_FAULT_LIMIT YES Default Value 0 0 0 1 0 1 1 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 0 1 1 0 Instructs the module on the action to take in response to an output overvoltage fault Format Unsigned Binary Bit Position 7 6 5 4 3 2 1 0 41 VOUT_OV_FAULT_RESPONSE Access r/w r/w r/w r/w r/w r r r YES RSP RSP Function RS[2]RS[1]RS[0] X X X [1] [0] Default Value 1 0 1 1 1 0 0 0 August 1, 2017 ©2017 General Electric Company. All rights reserved. Page 23 Data Sheet GE TM 80A GigaDLynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14Vdc input; 0.6Vdc to 2.0Vdc output; 80A Output Current Table 6 (continued) Hex Non-Volatile Command Brief Description Code Memory Storage Sets the value of output voltage at which the module generates warning for over-voltage. Exponent is fixed at -13 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 42 VOUT_OV_WARN_LIMIT Function Exponent Mantissa YES Default Value 0 0 0 1 0 1 0 1 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 0 0 1 Sets the value of output voltage at which the module generates warning for under-voltage. Exponent is fixed at -13 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 43 VOUT_UV_WARN_LIMIT Function Exponent Mantissa YES Default Value 0 0 0 1 0 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 1 0 0 1 0 0 0 Sets the voltage level for an output undervoltage fault. Exponent is fixed at -13. 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 44 VOUT_UV_FAULT_LIMIT YES Default Value 0 0 0 1 0 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 1 0 1 0 0 0 0 Instructs the module on the action to take in response to an output undervoltage fault Format Unsigned Binary Bit Position 7 6 5 4 3 2 1 0 45 VOUT_UV_FAULT_RESPONSE Access r/w r/w r/w r/w r/w r r r YES RSP RSP Function RS[2]RS[1]RS[0] X X X [1] [0] Default Value 1 0 1 1 1 0 0 0 Sets the current level for an output overcurrent fault (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/w r r Function Exponent Mantissa 46 IOUT_OC_FAULT_LIMIT YES Default Value 1 1 1 0 0 0 1 1 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 0 0 1 1 1 1 Sets the value of current level at which the module generates warning for overcurrent. 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 4A IOUT_OC_WARN_LIMIT YES Default Value 1 1 1 0 0 0 1 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 1 1 1 1 1 1 1 August 1, 2017 ©2017 General Electric Company. All rights reserved. Page 24 Data Sheet GE TM 80A GigaDLynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14Vdc input; 0.6Vdc to 2.0Vdc output; 80A Output Current Table 6 (continued) Hex Non-Volatile Command Brief Description Code Memory Storage Sets the temperature level above which over-temperature fault occurs. 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 4F OT_FAULT_LIMIT YES Default Value 1 1 1 0 1 0 1 1 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 1 1 1 0 0 1 1 1 Configures the over temperature fault response Format Unsigned Binary Bit Position 7 6 5 4 3 2 1 0 50 OT_FAULT_RESPONSE Access r/w r/w r/w r/w r/w r r r YES RSP RSP Function RS[2]RS[1]RS[0] X X X [1] [0] Default Value 1 0 1 1 1 0 0 0 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 OT_WARN_LIMIT YES Default Value 1 1 1 0 1 0 1 1 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 1 0 0 1 0 1 1 0 Configures the VIN overvoltage fault response. Format Unsigned Binary Bit Position 7 6 5 4 3 2 1 0 056 VIN_OV_FAULT_RESPONSE Access r/w r/w r/w r/w r/w r r r YES RSP RSP Function RS[2]RS[1]RS[0] X X X [1] [0] Default Value 1 0 0 0 0 0 0 0 Sets the value of the input voltage that causes input voltage low warning. Exponent fixed at -6 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 57 VIN_OV_WARN_LIMIT YES Default Value 1 1 0 1 0 0 1 1 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 1 0 0 1 0 0 1 1 August 1, 2017 ©2017 General Electric Company. All rights reserved. Page 25 Data Sheet GE TM 80A GigaDLynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14Vdc input; 0.6Vdc to 2.0Vdc output; 80A Output Current Table 6 (continued) Hex Non-Volatile Memory Command Brief Description Code Storage Sets the value of the input voltage that causes input voltage low warning. Exponent fixed at -6 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 58 VIN_UV_WARN_LIMIT Function Exponent Mantissa YES Default Value 1 1 0 0 1 0 1 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 1 0 0 0 0 0 0 Sets the value of the input voltage that causes an input undervoltage fault. Exponent fixed at -6. 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 59 VIN_UV_FAULT_LIMIT Function Exponent Mantissa YES Default Value 1 1 0 0 1 0 1 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 1 0 1 Instructs the module on what action to take In response to an input undervoltage fault. Format Unsigned Binary Bit Position 7 6 5 4 3 2 1 0 5A VIN_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 1 0 1 1 1 0 0 0 Sets the output voltage level at which the PGOOD pin is asserted high. Exponent is fixed at -13. 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 1 0 0 1 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 1 1 1 Sets the output voltage level at which the PGOOD pin is de-asserted low. Exponent is fixed at -13. 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 1 0 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 Low Byte Default Value 0 1 0 0 1 0 0 0 August 1, 2017 ©2017 General Electric Company. All rights reserved. Page 26 Data Sheet GE TM 80A GigaDLynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14Vdc input; 0.6Vdc to 2.0Vdc output; 80A Output Current Table 6 (continued) Hex Non-Volatile Memory Command Brief Description Code Storage Sets the delay time in ms 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 60 TON_DELAY YES Default Value 1 1 1 1 1 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 0 0 0 0 0 0 Sets the rise time in ms 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 0 1 1 1 0 1 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 1 1 1 1 1 1 1 1 Sets the delay time in ms of the output voltage during turn-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/w Function Exponent Mantissa 64 TOFF_DELAY YES Default Value 1 1 1 1 1 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 0 0 0 0 0 0 Sets the fall time in ms of the output voltage during turn-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/w Function Exponent Mantissa 65 TOFF_FALL YES Default Value 1 0 1 1 1 0 1 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 1 1 1 1 1 1 1 1 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 NO Access r r R r r r r r Flag X OFF VOUT_OVIOUT_OCVIN_UVTEMP CML OTHER 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 Flag VOUTIOUT_OC X X PGOODX X X 79 STATUS_WORD NO 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 Flag X OFF VOUT_OVIOUT_OCVIN_UV TEMP CML OTHER Default Value 0 0 0 0 0 0 0 0 Table 6 (continued) August 1, 2017 ©2017 General Electric Company. All rights reserved. Page 27 Data Sheet GE TM 80A GigaDLynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14Vdc input; 0.6Vdc to 2.0Vdc output; 80A Output Current Hex Non-Volatile Command Brief Description Code Memory Storage Returns one byte of information with the status of the module’s output voltage related faults Format Unsigned Binary NO 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 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 NO Access r r r r r r r r Flag IOUT_OC X X X IOUT_OC_WARN 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 input related faults Format Unsigned Binary Bit Position 7 6 5 4 3 2 1 0 7C STATUS_INPUT Access NO r r r r r r r r VIN_OV VIN_UV_ VIN_UV Flag VIN_OV_FAULT _WARNI X X X X WARNING _FAULT NG 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 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. Exponent is fixed at -6 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 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 V Returns the value of the output voltage of the module. Exponent is fixed at -13 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 V V V V V 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 V Table 6 (continued) August 1, 2017 ©2017 General Electric Company. All rights reserved. Page 28 Data Sheet GE TM 80A GigaDLynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14Vdc input; 0.6Vdc to 2.0Vdc output; 80A Output Current Hex Non-Volatile Command Brief Description Code Memory Storage 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 V Returns the module inductor temperature in ºC 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 8D READ_TEMPERATURE_1 Default Value 1 1 1 0 1 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 V Returns the module PWM controller temperature in ºC 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 1 1 1 0 1 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 V Returns the switching Frequency of the converter. The Frequency is in Kilohertz and is read only, consisting of two bytes. 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 95 READ_FREQUENCY Default Value 0 0 0 0 0 0 0 1 Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r r Function Mantissa Default Value 1 0 0 1 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 Bit Position 7 6 5 4 3 2 1 0 YES Access r r r r r r r r Default Value 0 0 1 0 0 0 1 0 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 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 Table 6 (continued) August 1, 2017 ©2017 General Electric Company. All rights reserved. Page 29 Data Sheet GE TM 80A GigaDLynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14Vdc input; 0.6Vdc to 2.0Vdc output; 80A Output Current Hex Non-Volatile Command Brief Description Code Memory Storage 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 Mantissa A4 MFR_VOUT_MIN YES Default Value 1 0 1 0 0 0 1 1 Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r r Function Mantissa Default Value 1 1 0 1 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 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 1 0 0 0 Returns module 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 Module Name Default Value 0 1 0 1 0 0 1 0 Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r r Function Module Name Default Value 0 0 1 1 1 1 0 0 Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r r Function Module Name Default Value 0 0 0 0 0 1 1 0 Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r r Function Module Name Bit Position 7 6 5 4 3 2 1 0 D1 MFR_SPECIFIC_01 YES Access r r r r r r r r Function Module Name Default Value 0 0 1 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 Module Name Default Value 0 0 1 1 0 0 1 0 Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r r Function Module Name Default Value 0 0 0 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 Module Name Default Value 0 0 0 0 0 1 1 0 Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r r August 1, 2017 ©2017 General Electric Company. All rights reserved. Page 30 Data Sheet GE TM 80A GigaDLynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14Vdc input; 0.6Vdc to 2.0Vdc output; 80A Output Current Table 6 (continued) Hex Non-Volatile Command Brief Description Code Memory Storage DB MFR_VOUT_MARGIN_HIGH Returns the target voltage for margining the output high. Exponent is fixed at -13. YES 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 V V V V V 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 V Returns the target voltage for margining the output low. Exponent is fixed at -13 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 DC MFR_VOUT_MARGIN_LOW YES 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 r r r r Function Mantissa Default Value V V V V V V V V Returns the index derived from the resistor strapped to the RTUNE pin of the module. Format Unsigned Binary Bit Position 7 6 5 4 3 2 1 0 DD MFR_RTUNE_INDEX YES Access r r r r r r r r Function Reserved Default Value V V V V V V V V Gets or sets the write protection status of various PMBus commands. When a bit is set, the corresponding PMBus command is write protected and can only be read. Format Unsigned Binary Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r r Function Reserved Default Value 0 0 0 0 0 0 0 1 Bit Position 15 14 13 12 11 10 9 8 Access r r r r r r r r Function See Description Below DF MFR_WRITE_PROTECT YES Default Value 1 1 1 1 1 1 1 1 Bit 0: ON_OFF_CONFIG Bit 1: IOUT_CAL command comprising both IOUT_CAL_GAIN and IOUT_CAL_OFFSET Bit 2: IOUT_OC_FAULT_LIMIT Bit 3: IOUT_OC_FAULT_RESPONSE Bit 4: OT_FAULT_LIMIT Bit 5: OT_FAULT_RESPONSE Bit 6: TOFF_MAX_WARN_LIMIT Bit 7: MFR_EXT_TEMP_CAL_OFFSET Bit 8: MFR_PHASE_CONTROL Bit 9: MFR_SPECIFIC_01 Gets or sets the target output voltage when switching off the device, in volts. Setting a non-zero value here will enable shut-down into pre-bias. 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 E0 MFR_VOUT_OFF Function 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 August 1, 2017 ©2017 General Electric Company. All rights reserved. Page 31 Data Sheet GE TM 80A GigaDLynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14Vdc input; 0.6Vdc to 2.0Vdc output; 80A Output Current Table 6 (continued) Hex Non-Volatile Command Brief Description Code Memory Storage Allows user to enable/disable VTRACK and SYNC feature of the module. YES Format Unsigned Binary Bit Position 7 6 5 4 3 2 1 0 Access r r r r r/w r/w r/w r/w Function Reserved Default Value 0 0 0 0 0 0 0 0 Bit Position 15 14 13 12 11 10 9 8 E7 MFR_FEATURES_CONTROL Access r r r r r r r r Function See Description Below Default Value 0 0 0 0 0 0 0 0 Bit 0: VTRACK ENABLE, 0 = Disabled; 1 = Enabled Bit 1: SYNC ENABLE, 0 = Disabled; 1 = Enabled Bit 2: SYNC IN/OUT, 0 = Sync signal input; 1 = Sync Signal Output Bit 3: SYNC Edge, 0 = Rising Edge Digital Power Insight (DPI) GE offers a software tool that set helps users evaluate and simulate the PMBus performance of the GDT080 modules without the need to write software. The software can be downloaded for free at http://go.ge-energy.com/DigitalPowerInsight.html. A GE USB to I2C adapter and associated cable set are required for proper functioning of the software suite. For first time users, the GE DPI Evaluation Kit can be purchased from leading distributors at a nominal price and can be used across the entire range of GE Digital POL Module. August 1, 2017 ©2017 General Electric Company. All rights reserved. Page 32 Data Sheet GE TM 80A GigaDLynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14Vdc input; 0.6Vdc to 2.0Vdc output; 80A Output Current Thermal Considerations Power modules operate in a variety of thermal environments; however, sufficient cooling should always be provided to help ensure reliable operation. Considerations include ambient temperature, airflow, module power dissipation, and the need for increased reliability. A reduction in the operating temperature of the module will result in an increase in reliability. The thermal data presented here is based on physical measurements taken in a wind tunnel. The test set-up is shown in Figure 38. The preferred airflow direction for the module is shown in Figure 39. 25.4_ Wind Tunnel (1.0) Figure 39. Preferred airflow direction and location of hot- spot of the module (Tref). PWBs Power Module The thermal reference points, Tref used in the specifications are also shown in Figure 39. For reliable operation the temperatures at these points should not exceed 120°C. The output power of the module should not exceed the rated power of the module (Vo,set x Io,max). 76.2_ Please refer to the Application Note “Thermal (3.0) Characterization Process For Open-Frame Board-Mounted x Power Modules” for a detailed discussion of thermal aspects including maximum device temperatures. Probe Location for measuring 12.7_ airflow and (0.50) ambient temperature Air flow Figure 38. Thermal Test Setup. August 1, 2017 ©2017 General Electric Company. All rights reserved. Page 33 Data Sheet GE TM 80A GigaDLynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14Vdc input; 0.6Vdc to 2.0Vdc output; 80A Output Current Example Application Circuit Requirements: Vin: 12V Vout: 1.2V Iout: 80A max., worst case load transient is from 20A to 60A Vout: 1.5% of Vout (18mV) for worst case load transient Vin, ripple 2% of Vin (220mV p-p) Vin+ Vout+ VIN VOUT VS+ PGOOD MODULE CLK TRIM SEQ RTUNE CI3 CI2 CI1 CO3 CO1 CO2 DATA RTUNE ADDR0 SMBALRT# RTrim ADDR1 ON/OFF RADDR1 RADDR0 SIG_GND SYNC GND VS- GND GND CI1 Decoupling cap - 1x0.1F/16V ceramic capacitor (e.g. Murata LLA215R71A224MA14) CI2 6x22F/16V ceramic capacitor (e.g. Murata GRM32ER61C226KE20) CI3 470F/16V bulk electrolytic CO1 Decoupling cap - 1x0.047F/16V ceramic capacitor (e.g. Murata LLA215R71A224MA14) CO2 6 x 47F/6.3V ceramic capacitor (e.g. Murata GRM31CR60J476ME19) CO3 5 x 1000F/2.5V Polymer (e.g. Sanyo Poscap) RTune 4.22kohms SMT resistor (can be 1206, 0805 or 0603 size) RTrim 2k SMT resistor (can be 1206, 0805 or 0603 size, recommended tolerance of 0.1%) August 1, 2017 ©2017 General Electric Company. All rights reserved. Page 34 Data Sheet GE TM 80A GigaDLynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14Vdc input; 0.6Vdc to 2.0Vdc output; 80A Output 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.) TOP VIEW SIDE VIEWS August 1, 2017 ©2017 General Electric Company. All rights reserved. Page 35 Data Sheet GE TM 80A GigaDLynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14Vdc input; 0.6Vdc to 2.0Vdc output; 80A Output Current Recommended Pad Layout Pinout Details PIN FUNCTION PIN FUNCTION PIN FUNCTION 1 GND 15 SEQ 29 SMBALERT# 2 VIN 16 VS+ 30 NC 3 GND 17 SIG_GND 31 NC 4 VIN 18 NC 32 NC 5 GND 19 PGOOD 33 NC 6 GND 20 ADDR0 7 VOUT 21 NC 8 VOUT 22 SYNC 9 GND 23 ADDR1 10 GND 24 RTUNE 11 VOUT 25 ON/OFF 12 VOUT 26 CLK 13 VS- 27 NC 14 TRIM 28 DATA August 1, 2017 ©2017 General Electric Company. All rights reserved. Page 36 Data Sheet GE TM 80A GigaDLynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14Vdc input; 0.6Vdc to 2.0Vdc output; 80A Output Current Packaging Details TM The 80A GigaDLynx 80A modules are supplied in tape & reel as standard. Modules are shipped in quantities of 80 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: 56.00 mm (2.205”) Surface Mount Information August 1, 2017 ©2017 General Electric Company. All rights reserved. Page 37 Data Sheet GE TM 80A GigaDLynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14Vdc input; 0.6Vdc to 2.0Vdc output; 80A Output Current according to the MSL rating (see J-STD-033A). The shelf life Pick and Place for dry packed SMT packages will be a minimum of 12 TM The 80A GigaDLynx modules use an open frame months from the bag seal date, when stored at the following construction and are designed for a fully automated conditions: < 40° C, < 90% relative humidity. assembly process. The modules are fitted with a label 300 designed to provide a large surface area for pick and place Per J-STD-020 Rev. C Peak Temp 260°C operations. The label meets all the requirements for surface 250 mount processing, as well as safety standards, and is able o Cooling to withstand reflow temperatures of up to 300 C. The label 200 Zone also carries product information such as product code, * Min. Time Above 235°C 15 Seconds serial number and the location of manufacture. 150 Heating Zone *Time Above 217°C 1°C/Second 60 Seconds Nozzle Recommendations 100 The module weight has been kept to a minimum by using 50 open frame construction. Variables such as nozzle size, tip style, vacuum pressure and placement speed should be 0 considered to optimize this process. The minimum Reflow Time (Seconds) recommended inside nozzle diameter for reliable operation Figure 40. Recommended linear reflow profile using is 10mm. The maximum nozzle outer diameter, which will Sn/Ag/Cu solder. safely fit within the allowable component spacing, is 17 mm. Bottom Side / First Side Assembly Post Solder Cleaning and Drying Considerations This module is not recommended for assembly on the Post solder cleaning is usually the final circuit-board bottom side of a customer board. If such an assembly is assembly process prior to electrical board testing. The result attempted, components may fall off the module during the of inadequate cleaning and drying can affect both the second reflow process. reliability of a power module and the testability of the finished circuit-board assembly. For guidance on Lead Free Soldering 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. 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). The recommended linear reflow profile using Sn/Ag/Cu solder is shown in Fig. 40. Soldering outside of the recommended profile requires testing to verify results and performance. MSL Rating TM The 80A GigaDLynx 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 packages should not be broken until time of use. Once the original package is broken, the floor life of the product at conditions of  30°C and 60% relative humidity varies August 1, 2017 ©2017 General Electric Company. All rights reserved. Page 38 Reflow Temp (°C) Preliminary Data Sheet GE TM 80A GigaDLynx : Non-Isolated DC-DC Power Modules 4.5Vdc –14Vdc input; 0.6Vdc to 2.0Vdc output; 80A Output Current Ordering Information Please contact your GE Sales Representative for pricing, availability and optional features. Table 7. Device Codes Input Output Output On/Off Device Code Sequencing Comcodes Voltage Range Voltage Current Logic GDT080A0X3-SRZ 4.5 – 14Vdc 0.6 – 2.0 Vdc 80A Negative Yes 150037110 GDT080A0X43-SRZ 4.5 – 14Vdc 0.6 – 2.0 Vdc 80A Positive Yes 150044134 -Z refers to RoHS compliant parts Table 8. Coding Scheme Package Sequencing Output Output On/Off Remote Family Options ROHS Compliance Identifier Option current voltage logic Sense G D T 080A0 X 3 -SR -H Z P=Pico D=Dlynx T=with EZ 80A X = 4 = positive 3 = S = Surface Extra Z = ROHS6 Digital Sequence programm Remote Mount Ground U=Micro No entry = able output Sense Pins V = X=without negative R = Tape & M=Mega DLynx sequencing Reel Analog. G=Giga 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: +1 877 546 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. August 1, 2017 ©2017 General Electric Company. All International rights reserved. Version 8.2