Data Sheet GE EBDW025A0B Barracuda* Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output Features RoHS Compliant  Compliant to RoHS EU Directive 2011/65/EU (-Z versions)  Compliant to REACH Directive (EC) No 1907/2006  Compatible with reflow pin/paste soldering process  High and flat efficiency profile >95.2% at 12Vdc,40% to 80% rated output  Wide input voltage range: 36-75V dc  Delivers up to 25A output current dc  Remote sense and output voltage trim  Fully very tightly regulated output voltage  Output voltage adjust (via PMBus): 5.0V to 13.2V dc dc  Low output ripple and noise  No reverse current during prebias start-up or shut-down  Industry standard, DOSA compliant, Eighth brick: Applications 58.4 mm x 22.8 mm x 11.3 mm (2.30 in x 0.90 in x 0.44 in)  Distributed power architectures  Constant switching frequency  Intermediate bus voltage applications  Positive remote On/Off logic  Servers and storage applications  Output over current/voltage protection  Networking equipment including Power over Ethernet (PoE)  Digital interface with PMBus™ Rev.1.2 compliance^  Fan assemblies other systems requiring a tightly regulated  Over temperature protection output voltage  Wide operating temperature range (-40°C to 85°C)  CAN/CSA† C22.2 No. 60950-1-07, 2nd Edition + A1:2011 Options # (MOD), ANSI/UL 60950-1-2011, IEC 60950-1 (2nd edition); am1, and VDE‡ (EN60950-1, 2nd Ed.) Licensed  Negative Remote On/Off logic (1=option code, factory § preferred)  CE mark 2006/96/EC directives  Auto-restart after fault shutdown (4=option code, factory  Meets the voltage and current requirements for ETSI 300- preferred) 132-2 and complies with and licensed for Basic insulation rating per EN60950-1  Base plate option (-H=option code) ¤  2250 Vdc Isolation tested in compliance with IEEE 802.3 PoE  Passive Droop Load Sharing (-P=option code) standards  ISO** 9001 and ISO14001 certified manufacturing facilities Description The EBDW025A0B Barracuda™ series of dc-dc converters are a new generation of DC/DC power modules designed to support 9.6 -12V intermediate bus applications where multiple low voltages are subsequently generated using point of load (POL) converters, dc as well as other application requiring a tightly regulated output voltage. The EBDW025A0B series operate from an input voltage range of 36 to 75Vdc, and provide up to 25A output current at output voltages from 5.0Vdc to 12.0Vdc, and 300W output power from output voltages of 12.1Vdc to 13.2Vdc in a DOSA standard eighth brick. The converter incorporates digital control, synchronous rectification technology, a fully regulated control topology, and innovative packaging techniques to achieve efficiency exceeding 95.4% peak at 12Vdc output. This leads to lower power dissipations such that for many applications a heat sink is not required. Standard features include output voltage trim, remote sense, on/off control, output overcurrent and over voltage protection, over temperature protection, input under and over voltage lockout, power good signal and PMBus interface. The output is fully isolated from the input, allowing versatile polarity configurations and grounding connections. Built-in filtering for both input and output minimizes the need for external filtering. * Trademark of General Electric Company ^ PMBus name and logo are registered trademarks of SMIF, Inc. # 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. § This product is intended for integration into end-user equipment . All of the required procedures of end-use equipment should be followed. ¤ IEEE and 802 are registered trademarks of the Institute of Electrical and Electronics Engineers, Incorporated. ** ISO is a registered trademark of the International Organization of Standards. March 18, 2016 ©2016 General Electric Company. All rights reserved. Page 1 Data Sheet GE EBDW025A0B Barracuda™ Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output 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 device reliability. Parameter Device Symbol Min Max Unit Input Voltage* Continuous V -0.3 75 V IN dc Operating transient ≤ 100mS 100 V dc Operating Input transient slew rate, 50V to 75V IN IN (Output may exceed regulation limits, no protective shutdowns - - 10 V/µs shall activate, CO=220μF to CO, max) Non- operating continuous V 80 100 V IN dc Operating Ambient Temperature All TA -40 85 °C (See Thermal Considerations section) Logic Pin Voltage (to SIG_GND or V (-)) O All Vpin -0.3 3.6 Vdc TRIM/C1, C2, ADDR0, ADDR1, CLK, DATA, SMBALERT Storage Temperature All T -55 125 °C stg I/O Isolation Voltage (100% factory Hi-Pot tested) All 2250 V   dc * Input over voltage protection will shutdown the output voltage when the input voltage exceeds threshold level. 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 VIN 36 48 75 Vdc Maximum Input Current I - - 9 A IN,max dc (VIN=0V to 75V, IO=IO, max) Input No Load Current All IIN,No load 50 mA (V = V , I = 0, module enabled) IN IN, nom O Input Stand-by Current All I 25 mA IN,stand-by (VIN = VIN, nom, module disabled) External Input Capacitance All 100 - - μF 2 2 Inrush Transient All It - - 1 A s Input Terminal Ripple Current (Measured at module input pin with maximum specified input capacitance and ൏ 500uH inductance between voltage source All - 950 - mA rms and input capacitance CIN=220uF, 5Hz to 20MHz, VIN= 48V, IO= IOmax) Input Reflected Ripple Current, peak-to-peak (5Hz to 20MHz, 12μH source impedance; V = 48V, I = I ; see All - 24 - mA IN O Omax p-p Figure 12) Input Ripple Rejection (120Hz) All - 50 - dB CAUTION: This power module is not internally fused. An input line fuse must always be used. This power module can be used in a wide variety of applications, ranging from simple standalone operation to an integrated part of sophisticated power architecture. To preserve maximum flexibility, internal fusing is not included, however, to achieve maximum safety and system protection, always use an input line fuse. The safety agencies require a fast-acting fuse with a maximum rating of 15 A (see Safety Considerations section). Based on the information provided in this Data Sheet on inrush energy and maximum dc input current, the same type of fuse with a lower rating can be used. Refer to the fuse manufacturer’s Data Sheet for further information. March 18, 2016 ©2016 General Electric Company. All rights reserved. Page 2 Data Sheet GE EBDW025A0B Barracuda™ Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output Electrical Specifications (continued) Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. Parameter Device Symbol Min Typ Max Unit Output Voltage Set-point (Default) (VIN=VIN,nom, IO=12.5A, TA =25°C) All VO, set 11.97 12.00 12.03 Vdc (Adjustable via PMBus) Output Voltage Variation from Default All w/o -P V 11.76 12.24 V O  dc (Over all operating input voltage (40V to 75V), resistive load, and -P Option V 11.60 12.40 V O  dc temperature conditions until end of life) Output Voltage (V =36V, T = 25ºC) All V 10.8 V IN A O   dc Output Regulation [VIN, min = 40V] Line (VIN=VIN, min to VIN, max) All w/o -P  0.2  % VO, set Load (IO=IO, min to IO, max) All w/o -P  0.2  % VO, set Line (VIN=VIN, min to VIN, max) -P Option  0.5  % VO, set Load (I =I to I ), Intentional Droop -P Option 0.50 V O O, min O, max dc Temperature (T = -40ºC to +85ºC) All 2 % V A   O, set Output Ripple and Noise on nominal output (VIN=VIN, nom and IO=IO, min to IO, max) RMS (5Hz to 20MHz bandwidth) All 70 mV   rms Peak-to-Peak (5Hz to 20MHz bandwidth) All  200  mVpk-pk External Output Capacitance All CO, max 220  10,000 μF Output Current All I 0 25 A O dc VOUT_OC_FAULT_LIMIT (Default) All I 30 A O,lim   dc (Adjustable via PMBus) Efficiency (VIN=VIN, nom, TA=25°C, VO= VO,set) IO=100% IO, max All η 94.7 % I =40% I to 80% I All η 95.2 % O O, max O, max , Switching Frequency (primary MOSFETs) f 150 kHz sw (Output Ripple 2X switching frequency) Dynamic Load Response dI /d =1A/10s; V =V , ; T =25°C; (Tested with a 10μF O t in in nom A ceramic and 3x 470μF polymer capacitor and across the load.) Load Change from IO = 50% to 75% of IO,max: Vpk  750  mVpk Peak Deviation All ts  2  ms Settling Time (V <10% peak deviation) O Load Change from I = 75% to 50% of I : O O,max  750  Peak Deviation All V mV pk pk  2  Settling Time (VO <10% peak deviation) ts ms Isolation Specifications Parameter Symbol Min Typ Max Unit Isolation Capacitance C  1000  pF iso Isolation Resistance R 10 MΩ iso   General Specifications Parameter Device Symbol Typ Unit Calculated Reliability Based upon Telcordia SR-332 Issue 2: All MTBF 3,374,462 Hours Method I, Case 3, (IO=80%IO, max, TA=40°C, Airflow = 200 LFM), 9 All FIT 296.3 10 /Hours 90% confidence Weight – Open Frame 30.0 (1.06) g (oz.) Weight – with Base plate option 39.5 (1.39) g (oz.) March 18, 2016 ©2016 General Electric Company. All rights reserved. Page 3 Data Sheet GE EBDW025A0B Barracuda™ Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output 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 Remote On/Off Signal Interface (VIN=VIN, min to VIN, max , Signal referenced to VIN- terminal) Negative Logic: device code suffix “1” Logic LO = module On, Logic HI = module Off Positive Logic: No device code suffix required Logic LO = module Off, Logic HI = module On On/Off Thresholds: Remote On/Off Current – Logic LO (Vin =100V) All I 280 310 μA on/off  Logic LO Voltage All Von/off -0.3  0.8 Vdc Logic HI Voltage – (Typ = Open Collector) All Von/off 2.0  14.5 Vdc Logic HI maximum allowable leakage current All I 10 μA on/off   (Von/off = 2.0V) Maximum voltage allowed on On/Off pin All Von/off   14.5 Vdc TON_DELAY and TON_RISE (I =I ) O O, max (Adjustable via PMBus) T delay, Enable All w/o -P   160 ms with Vin Tdelay=Time until VO = 10% of VO,set from either application of Vin with Remote On/Off set to On (Enable with Vin); or T delay, Enable All w/o -P   40 ms operation of Remote On/Off from Off to On with Vin with on/off already applied for at least 150 milli-seconds (Enable T , delay Enable w/ -P   180* ms with on/off). with Vin * Increased Tdelay due to startup for parallel modules. T delay, Enable w/ -P   40* ms with on/off Trise=Time for VO to rise from 10% to 90% of VO,set, For CO All w/o -P Trise   40 ms >5000uF, IO must be < 50% IO, max during Trise. * Increased T when Vo exists at startup for parallel rise modules. w/ -P Trise   300* ms Load Sharing Current Balance (difference in output current across all modules with -P Option Idiff 3 A outputs in parallel, no load to full load) Remote Sense Range All VSense   0.5 Vdc External Resistor Trim Range All VO, set 6.0 13.2 Vdc VOUT_COMMAND All V 5.0 13.2 V O, set dc (Adjustable via PMBus) VOUT_OV_FAULT_LIMIT All V 15 V O,limit dc (Adjustable via PMBus) OT_FAULT_LIMIT All T 140 °C ref   (Adjustable via PMBus) Input Undervoltage Lockout (Adjustable via PMBus) VIN_ON 34 35 36 V dc VIN_OFF 32 33.5 34.5 V dc Input Overvoltage Lockout (Adjustable via PMBus) Turn-off Threshold [VIN_OV_FAULT_LIMIT] 83 85 86 Vdc Turn-on Threshold 76 79  Vdc (follows VIN_OV_FAULT_LIMIT -7V) Pull down resistance of Power Good pin All 150 Ω Sink current capability into Power Good pin (VPG=2.2V) All 15 mA March 18, 2016 ©2016 General Electric Company. All rights reserved. Page 4 Data Sheet GE EBDW025A0B Barracuda™ Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output Digital Interface Specifications Unless otherwise indicated, specifications apply over all operating input voltage, resistive load, and temperature conditions. See Feature Descriptions for additional information. Parameter Conditions Symbol Min Typ Max Unit PMBus Signal Interface Characteristics Input High Voltage (CLK, DATA) VIH 2.1 3.6 V Input Low Voltage (CLK, DATA) VIL 0.8 V Input high level current (CLK, DATA) IIH -10 10 μA Input low level current (CLK, DATA) IIL -10 10 μA Output Low Voltage (CLK, DATA, SMBALERT#) I=2mA VOL 0.4 V OUT Output high level open drain leakage current (DATA, V=3.6V I 0 10 μA OUT OH SMBALERT#) Pin capacitance C 0.7 pF O PMBus Operating frequency range (* 5-10 kHz to accommodate hosts not supporting Slave Mode FPMB 5* 400 kHz clock stretching) Measurement System Characteristics Output current reading range IOUT(RNG) 0.56 63.9375 A Output current reading resolution I 0.19 A OUT(RES) Output current reading accuracy 5A < Iout <25A IOUT(ACC) -5.0 4.0 % Output current reading accuracy (absolute 0.56A < Iout <5A IOUT(ACC) -1.4 2.7 A difference between actual and reported values) V reading range V 0 15.9997 V OUT OUT(RNG) VOUT reading resolution VOUT(RES) 0.244 mV VOUT reading accuracy VOUT(ACC) -2.0 0.6 2.0 % VIN reading range VIN(RNG) 0 127.875 V V reading resolution V 125 mV IN IN(RES) V reading accuracy V -4.0 0.8 4.0 % IN IN(ACC) Temperature reading resolution T 0.25 °C (RES) Temperature reading accuracy T(ACC) -5.0 5.0 % March 18, 2016 ©2016 General Electric Company. All rights reserved. Page 5 Data Sh heet G GE E EBDW02 25A0B Ba arracuda a™ Serie es; DC-DC C Converter Pow wer Modu ules 3 36-75Vdc Input; 12.0V Vdc, 25.0A, , 300W Out tput C Characteris stic Curves s T The following figures provide typical characteristics for the e EBDW025A0B B (12V, 25A) at 25ºC. The figures are identica al for either p positive or nega ative Remote O On/Off logic. INPU UT VOLTAGE, V (V V) TIME, t (20 ms/div) O F Figure 1. Typical Input Chara acteristic at Ro oom Temperat ture. Figur re 4. Typical St tart-Up Using Remote On/O Off with Vin applied, negative lo ogic version sh hown. OUTP PUT CURRENT, IO (A) TIME, t t (1 ms/div) F Figure 2. Typical Converter E Efficiency Vs. O Output current t at Figur re 5. Typical Tr ransient Respo onse to Step ch hange in Load d R Room Tempera ature. from 25% to 50% t to 25% of Full Load at 48 Vd dc Input and CO=3x470uF Polym mer.. TIM ME, t (40 ms/div) TIME, t t (1 ms/div) F Figure 3. Typic cal Start-Up Us sing Vin with R Remote On/Of ff Figur re 6. Typical Tr ransient Respo onse to Step C Change in Load d e enabled, negat tive logic versi ion shown. from 50% to 75% t to 50% of Full Load at 48 Vd dc Input and CO=3x470uF Polym mer.. M March 18, 2016 ©2 2016 General Ele ectric Company. A All rights reserve ed. Page 6 6 OUTPUT VOLTAGE INPUT VOLTAGE VO (V) (5V/div) VIN(V) (20V/div) EFFCIENCY, η (%) INPUT CURRENT, Ii (A) OUTPUT CURRENT OUTPUT VOLTAGE OUTPUT VOLTAGE On/Off VOLTAGE OUTPUT CURRENT OUTPUT VOLTAGE IO (A) (5A/div) VO (V) (500mV/div) VO (V) (5V/div) VON/OFF (V) (2V/div) I I (A (A)) ((5 5A/d A/diiv v)) V V (V (V)) ((5 500m 00mV V/ /div) div) O O O O Data Sheet GE EBDW025A0B Barracuda™ Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output Characteristic Curves (continued) INPUT VOLTAGE, Vin (V) INPUT VOLTAGE, Vin (V) Figure 7. Typical Output Voltage Regulation vs. Input Figure 10. Typical Output Voltage Regulation vs. Input Voltage at Room Temperature. Voltage for the –P Version at Room Temperature. OUTPUT CURRENT, IO (A) OUTPUT CURRENT, IO (A) Figure 8. Typical Output Voltage Regulation vs. Output Figure 11. Typical Output Voltage Regulation vs. Output Current at Room Temperature. Current for the –P Version at Room Temperature. 36 Vin 48 Vin 75 Vin TIME, t (2s/div) Figure 9. Typical Output Ripple and Noise at Room Temperature I = I and and C . o o,max OMin March 18, 2016 ©2016 General Electric Company. All rights reserved. Page 7 OUTPUT VOLTAGE, OUTPUT VOLTAGE, VO (V) VO (V) (50mV/div) OUTPUT VOLTAGE, VO (V) OUTPUT VOLTAGE, VO (V) OUTPUT VOLTAGE, V (V) O Data Sheet GE EBDW025A0B Barracuda™ Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output Test Configurations Design Considerations Input Source Impedance The power module should be connected to a low ac-impedance source. A highly inductive source impedance can affect the stability of the power module. For the test configuration in Figure 12, a 100μF electrolytic capacitor, C , in (ESR<0.7 at 100kHz), mounted close to the power module helps ensure the stability of the unit. If the module is subjected to rapid on/off cycles, a 330μF input capacitor is required. Consult the factory for further application guidelines. Safety Considerations Note: Measure input reflected-ripple current with a simulated For safety-agency approval of the system in which the power source inductance (LTEST) of 12 µH. Capacitor CS offsets module is used, the power module must be installed in possible battery impedance. Measure current as shown above. compliance with the spacing and separation requirements of nd Figure 12. Input Reflected Ripple Current Test Setup. the end-use safety agency standard, i.e., UL60950-1 2 Ed., nd nd Ed., and VDE0805-1 EN60950-1 2 CSA C22.2 No. 60950-1 2 Ed. If the input source is non-SELV (ELV or a hazardous voltage greater than 60 Vdc and less than or equal to 75Vdc), for the module’s output to be considered as meeting the requirements for safety extra-low voltage (SELV), all of the following must be true:  The input source is to be provided with reinforced insulation from any other hazardous voltages, including the ac mains.  One VIN pin and one VOUT pin are to be grounded, or both the input and output pins are to be kept floating. Note: Use a 1.0 µF ceramic capacitor and a 10 µF aluminum or  The input pins of the module are not operator accessible. tantalum capacitor. Scope measurement should be made  Another SELV reliability test is conducted on the whole using a BNC socket. Position the load between system (combination of supply source and subject 51 mm and 76 mm (2 in. and 3 in.) from the module. module), as required by the safety agencies, to verify that under a single fault, hazardous voltages do not appear at the module’s output. Figure 13. Output Ripple and Noise Test Setup. Note: Do not ground either of the input pins of the module CONTACT AND without grounding one of the output pins. This may DISTRIBUTION LOSSES allow a non-SELV voltage to appear between the VO1 VI(+) output pins and ground. IO II The power module has safety extra-low voltage (SELV) outputs LOAD SUPPL Y when all inputs are SELV. The input to these units is to be provided with a maximum 15 A VI(–) VO2 fast-acting (or time-delay) fuse in the unearthed lead. CONT ACT RESIST ANCE The power module has internally generated voltages Note: All measurements are taken at the module terminals. When exceeding safety extra-low voltage. Consideration should be socketing, place Kelvin connections at module terminals to avoid taken to restrict operator accessibility. measurement errors due to socket contact resistance. Figure 14. Output Voltage and Efficiency Test Setup. March 18, 2016 ©2016 General Electric Company. All rights reserved. Page 8 Data Sheet GE EBDW025A0B Barracuda™ Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output The EBDW025A0B module contains circuitry to detect and Feature Descriptions respond to input overvoltage conditions. If the overvoltage Overcurrent Protection condition causes the input voltage to rise above the limit in the Specifications Table, the module will shut down. The module is To provide protection in a fault output overload condition, the factory default configured for auto-restart operation. The EBDW025A0B module is equipped with internal current- auto-restart feature continually monitors the input voltage and limiting circuitry and can endure current limiting continuously. will restart the module when the level falls 7V below the If the overcurrent condition causes the output voltage to fall VIN_OV_FAULT level. below 4.0V, the module will shut down. The module is factory default configured for auto-restart operation. The auto-restart The VIN_OV_FAULT threshold level can be reconfigured via the feature continually attempts to restore the operation until fault PMBus interface. condition is cleared. If the output overload condition still exists Remote On/Off (i) when the module restarts, it will shut down again. This operation will continue indefinitely until the overcurrent The module contains a standard on/off control circuit condition is corrected. reference to the V (-) terminal. Two factory configured remote IN The IOUT_OC_WARN threshold level, IOUT_OC_FAULT on/off logic options are available. Positive logic remote on/off threshold level, and IOUT_OC_FAULT_RESPONSE can be turns the module on during a logic-high voltage on the reconfigured via the PMBus interface. If the FAULT_RESPONSE ON/OFF pin, and off during a logic LO. Negative logic remote is reconfigured to remain latched off following an overcurrent on/off turns the module off during a logic HI, and on during a shutdown, the overcurrent latch is reset by either cycling the logic LO. Negative logic, device code suffix "1," is the factory- input power, or by toggling the on/off pin for one millisecond. preferred configuration. The On/Off circuit is powered from an internal bias supply, derived from the input voltage terminals. Output Overvoltage Protection To turn the power module on and off, the user must supply a The module contains circuitry to detect and respond to output switch to control the voltage between the On/Off terminal and overvoltage conditions. If the overvoltage condition causes the the V (-) terminal (V ). The switch can be an open collector IN on/off output voltage to rise above the limit in the Specifications or equivalent (see Figure 15). A logic LO is V = -0.3V to 0.8V. on/off Table, the module will shut down. The EBDW025A0B module is The typical Ion/off during a logic LO (Vin=48V, On/Off factory default configured for auto-restart operation. The Terminal=0.3V) is 147µA. The switch should maintain a logic- auto-restart feature continually attempts to restore the low voltage while sinking 310µA. During a logic HI, the operation until fault condition is cleared. If the output maximum Von/off generated by the power module is 8.2V. The overvoltage condition still exists when the module restarts, it maximum allowable leakage current of the switch at Von/off = will shut down again. This operation will continue indefinitely 2.0V is 10µA. If using an external voltage source, the maximum until the overvoltage condition is corrected. voltage V on the pin is 14.5V with respect to the V (-) on/off IN The VOUT_OV_FAULT threshold level and VOUT_OV_FAULT terminal. _RESPONSE can be reconfigured via the PMBus interface. If the If not using the remote on/off feature, perform one of the FAULT _RESPONSE is reconfigured to remain latched off following to turn the unit on: following an overvoltage shutdown, the overvoltage latch is For negative logic, short ON/OFF pin to VIN(-). reset by either cycling the input power, or by toggling the For positive logic: leave ON/OFF pin open. on/off pin for one millisecond. Overtemperature Protection The modules feature an overtemperature protection circuit to safeguard against thermal damage. The circuit shuts down the module when the default maximum device reference temperature is exceeded. The module is factory default configured to automatically restart once the reference temperature cools by ~25°C. The OT_WARNING and OT_FAULT threshold levels and OT_FAULT_RESPONSE can be reconfigured via the PMBus interface. If the FAULT _RESPONSE is reconfigured to remain Figure 15. Remote On/Off Implementation. latched off following an overtemperature shutdown, the overtemperature latch is reset by either cycling the input power or by toggling the on/off pin for one millisecond. Input Under Voltage Lockout When Vin exceeds VIN_ON, the module output is enabled, when Vin falls below VIN_OFF, the module output is disabled. VIN_ON and VIN_OFF can be reconfigured via the PMBus interface. A minimum 2V hysteresis between VIN_ON and VIN_OFF is required. Input Over Voltage Lockout March 18, 2016 ©2016 General Electric Company. All rights reserved. Page 9 Data Sheet GE EBDW025A0B Barracuda™ Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output Feature Descriptions (continued) Load Sharing For higher power requirements, the EBDW025A0 power module offers an optional feature for parallel operation (-P Option code). This feature provides a precise forced output voltage load regulation droop characteristic. The output set point and droop slope are factory calibrated to insure optimum matching of multiple modules’ load regulation characteristics. To implement load sharing, the following requirements should be followed: Figure 16. Circuit Configuration for remote sense.  The VOUT(+) and VOUT(-) pins of all parallel modules must be connected together. Balance the trace resistance for each module’s path to the output power planes, to insure best load Configurable Control Pins sharing and operating temperature balance. The EBDW025A0B contains two configurable control pins, T/C1  V must remain between 40V and 75V for droop sharing IN dc dc and C2, referenced to the module secondary SIG_GND. See to be functional. Mechanical Views for pin locations. The following table list the  It is permissible to use a common Remote On/Off signal to default factory configurations for the functions assigned to start all modules in parallel. these pins. Additional configurations can be accomplished via  These modules contain means to block reverse current flow the PMBus command, MFR_CPIN_ARA_CONFIG. Following the upon start-up, when output voltage is present from other table, there is a feature description for each function. parallel modules, thus eliminating the requirement for external output ORing devices. Modules with the –P option Pin Designation/Function Module Configuration will self determine the presence of voltage on the output from T/C1 C2 Code other operating modules, and automatically increase its Turn On/Off (O) Power Good w/o -P Factory Default On delay, T , as specified in the Feature Specifications delay Trim On/Off (O) w/o -P Via PMBus Table. Trim Power Good w/o -P Via PMBus  When parallel modules startup into a pre-biased output, e.g. On/Off (O) Power Good with -P Factory Default partially discharged output capacitance, the T is rise automatically increased, as specified in the Feature Remote On/Off(o) Specifications Table, to insure graceful startup.  Insure that the load is <50% IO,MAX (for a single module) until The module contains an additional remote on/off control input all parallel modules have started (load full start > module On/Off(o), via either the T/C1 or C2 pin, reference to the Tdelay time max + Trise time). SIG_GND pin. The factory default configuration is set to ignore  If fault tolerance is desired in parallel applications, output this input, unless activated by the PMBus command, MFR_ ORing devices should be used to prevent a single module CPIN_ON_OFF_CONFIG. This command is also used to failure from collapsing the load bus. configure the logic for the On/Off(o) pin. Positive logic remote on/off turns the module on during a logic HI voltage on the Remote Sense ON/OFF pin, and off during a logic LO. Negative logic remote on/off turns the module off during a logic HI, and on during a Remote sense minimizes the effects of distribution losses by logic LO. The On/Off(o) circuit is powered from an internal bias regulating the voltage at the remote-sense connections (See supply, referenced to SIG_GND. To turn the power module on Figure 15). The SENSE(-) pin should be always connected to and off, the user must supply a switch to control the voltage V (–).The voltage between the remote-sense pins and the O between the On/Off (o) terminal and the SIG_GND pin output terminals must not exceed the output voltage sense (Von/off(o)). The switch can be an open collector or equivalent range given in the Feature Specifications table: (see Figure 13). A logic LO is Von/off(o) = -0.3V to 0.8V. The [V (+) – V (–)] – [SENSE(+) ]  0.5 V O O typical Ion/off(o) during a logic low is 330µA. The switch should Although the output voltage can be increased by both the maintain a logic LO voltage while sinking 250µA. During a logic remote sense and by the trim, the maximum increase for the HI, the maximum Von/off(o) generated by the power module is output voltage is not the sum of both. The maximum increase 3.3V. The maximum allowable leakage current of the switch at is the larger of either the remote sense or the trim. The amount Von/off(o) = 2.0V is 130µA. If using an external voltage source, of power delivered by the module is defined as the voltage at the maximum voltage Von/off on the pin is 3.3V with respect to the output terminals multiplied by the output current. When the Vi(-) terminal. using remote sense and trim, the output voltage of the module If not using the Remote On/Off(o) feature, the pin may be left can be increased, which at the same output current, would N/C. increase the power output of the module. Care should be taken to ensure that the maximum output power of the module remains at or below the maximum rated power (Maximum rated power = Vo,set x Io,max). March 18, 2016 ©2016 General Electric Company. All rights reserved. Page 10 Data Sheet GE EBDW025A0B Barracuda™ Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output 511 Feature Descriptions (continued)   R  10.22 trimdown   20   Power Good, PG R  15 .3k The EBDW025A0B module provides a Power Good (PG) feature, trimdown which compares the module’s output voltage to the module’s Connecting an external resistor (Rtrim-up) between the T/C1 pin POWER_GOOD_ON and POWER_GOOD_OFF values. These and the VO(+) (or Sense (+)) pin increases the output voltage set values are adjustable via PMBus. PG is asserted when the point. The following equations determine the required external module’s output voltage is above the POWER_GOOD_ON resistor value to obtain a percentage output voltage change of value, and PG is de-asserted if any condition such as ∆%: overtemperature, overcurrent or loss of regulation occurs that would result in the output voltage going below the  5.11 12 .0V (100 %) 511  R    10 .22  trimup   POWER_GOOD_OFF value. 1.225 %  %   The PG signal, provided on pin C2, is implemented with an Where V  12 .0V  desired  %   100 open-drain node, pulled up via a 10kΩ resistor to 3.3V 12 .0V   internally. For Positive Logic PG (default), the PG signal is HI, For example, to trim-up the output voltage of the module by when PG is asserted, and LO, when the PG is de-asserted. For 5% to 12.6V, Rtrim-up is calculated is as follows: Negative Logic PG, the PG signal is LO, when PG is asserted,  %  5 and HI, when the PG is de-asserted. 5 .11 12 .0 (100  5) 511   The PMBus command MFR_PGOOD_POLARITY is used to set R    10 .22  trimup   1 .225 5 5   the logic polarity of the signal. R  938.8 trimup If not using the Power Good feature, the pin may be left N/C. The voltage between the Vo(+) and Vo(–) terminals must not Trim, Output Voltage Programming exceed the minimum output overvoltage protection value shown in the Feature Specifications table. This limit includes Trimming allows the output voltage set point to be increased any increase in voltage due to remote-sense compensation or decreased; this is accomplished by connecting an external and output voltage set-point adjustment trim. resistor between the TRIM pin and either the V (+) pin or the O Although the output voltage can be increased by both the VO(-) pin. remote sense and by the trim, the maximum increase for the output voltage is not the sum of both. The maximum increase V (+) O is the larger of either the remote sense or the trim. The amount R of power delivered by the module is defined as the voltage at trim-up the output terminals multiplied by the output current. When using remote sense and trim, the output voltage of the module LOAD T/C1 can be increased, which at the same output current would increase the power output of the module. Care should be EBDW025A0B R trim-down taken to ensure that the maximum output power of the module remains at or below the maximum rated power (Maximum rated power = VO,set x IO,max). V (-) O Thermal Considerations Figure 17. Circuit Configuration to Trim Output Voltage. The power modules operate in a variety of thermal environments and sufficient cooling should be provided to help Connecting an external resistor (R ) between the T/C1 trim-down ensure reliable operation. pin and the Vo(-) (or Sense(-)) pin decreases the output voltage Thermal considerations include ambient temperature, airflow, set point. To maintain set point accuracy, the trim resistor module power dissipation, and the need for increased tolerance should be ±1.0%. reliability. A reduction in the operating temperature of the The following equation determines the required external module will result in an increase in reliability. resistor value to obtain a percentage output voltage change of ∆%. The thermal data presented here is based on physical 511   R   10 .22  measurements taken in a wind tunnel, using automated trim down    %   thermo-couple instrumentation to monitor key component 12 .0V V Where   desired temperatures: FETs, diodes, control ICs, magnetic cores,  %   100   12 .0V   ceramic capacitors, opto-isolators, and module pwb conductors, while controlling the ambient airflow rate and For example, to trim-down the output voltage of the module temperature. For a given airflow and ambient temperature, the by 20% to 9.6V, Rtrim-down is calculated as follows: module output power is increased, until one (or more) of the % 20 components reaches its maximum derated operating March 18, 2016 ©2016 General Electric Company. All rights reserved. Page 11 Data Sh heet G GE E EBDW02 25A0B Ba arracuda a™ Serie es; DC-DC C Converter Pow wer Modu ules 3 36-75Vdc Input; 12.0V Vdc, 25.0A, , 300W Out tput Please refer to the Application No ote “Thermal Characterization n T Thermal Co onsideratio ons (continued) Proc cess For Open-Frame Board-M Mounted Powe er Modules” for r te emperature, as s defined in IPC C-9592. This pr rocedure is the en a de etailed discussion of thermal a aspects including maximum repeated for a d different airflow w or ambient t temperature un ntil a device temperatur res. fa amily of module output derat ting curves is o obtained. Hea at Transfer via Convection n Incre eased airflow o over the module enhances th he heat transfer via c convection. The thermal dera ating of figure 2 20-22 shows the m maximum outp put current tha at can be delive ered by each mod dule in the indic cated orientation without exc ceeding the max ximum THx tem mperature versus local ambie ent temperatur re (TA) f for several air f flow conditions s. The use of Figure 2 20 is shown in t the following e example: Exam mple Wha at is the minimu um airflow nec cessary for a EB BDW025A0B oper rating at V = 48 8 V, an output current of 20A, and a I max ximum ambient t temperature of 60 °C in tran nsverse orien ntation. Solution: Given: Vin= = 48V, IO = 20A A, TA = 60 °C Dete ermine required d airflow velocity (Use Figure 20): Velo ocity = 2.0m/s (4 400 LFM) or gre eater. H Heat-dissipating components s are mounted on the top side e of the module. Heat is removed by conduction, convection an nd radiation to the e surrounding e environment. P Proper cooling c can b be verified by m measuring the t thermal reference temperat ture (T THx). Peak temperature (THx) occurs at the position indica ated in n Figure 18 and d 19. Peak tem mperature occu urs at the position in ndicated in Figure 18 and 19.. For reliable op peration this te emperature sh hould not excee ed the listed te emperature threshold. LOCAL AMBIENT TE EMPERATURE, T TA (C) Figur re 20. Output C Current Derati ing for the Ope en Frame EBDW W025A0B in th he Transverse Orientation; A Airflow Direc ction from Vin( (+) to Vin(-); Vin n = 48V. F Figure 18. Loca ation of the the ermal reference temperatur re T TH . Do not exc ceed 113 °C. 1 F Figure 19. Loca ation of the the ermal reference temperatur re T TH2 for Base Plate module. D Do not exceed 110 °C. T The output pow wer of the module should not exceed the rat ted p power for the m module as listed d in the Orderin ng Information n LOC CAL AMBIENT T TEMPERATURE, T (C) A ta able. Figur re 21. Output C Current Derati ing for the Bas se plate EBDW W025A0B-H in the Transvers se Orientation n; Airflow M March 18, 2016 ©2 2016 General Ele ectric Company. A All rights reserve ed. Page 12 2 OUTPUT CURRENT, IO (A) OUTPUT CURRENT, IO (A) Data Sh heet G GE E EBDW02 25A0B Ba arracuda a™ Serie es; DC-DC C Converter Pow wer Modu ules 3 36-75Vdc Input; 12.0V Vdc, 25.0A, , 300W Out tput Di irection from V Vin(+) to Vin(-); Vin = 48V. Max. sustain tempe erature : T Thermal Consideratio ons (contin nued) 245C (J-STD-020C C Table 4-2: Pac ckaging Thickn ness>=2.5mm / / 3 Volu ume > 2000mm ), Peak k temperature over 245C is not suggested d due to the pote ential reliability risk of components under co ontinuous high- temp perature. Min. sustain duration above 217C : 90 seconds s Min. sustain duration above 180C : 150 second ds Max. heat up rate: 3C/sec Max. cool down rat te: 4C/sec In co ompliance with h JEDEC J-STD- -020C spec for 2 times reflow w requ uirement. Pb-f free Reflow P Profile BMP P module will co omply with J-S STD-020 Rev. D (Mois sture/Reflow S Sensitivity Class sification for Nonhermetic Solid State Surface Mount Devices s) for both Pb- L LOCAL AMBIENT T TEMPERATUR RE, TA (C) free solder profiles and MSL class sification proc cedures. BMP w will comply wit th JEDEC J-STD D-020C Fi igure 22. Outp put Current De erating for the Base Plate spec cification for 3 times reflow re equirement. Th he suggested EB BDW025A0Bxx x-H and 0.25” heat sink in th he Transverse Pb-free solder past te is Sn/Ag/Cu (SAC). The recommended O Orientation; Air rflow Airflow D Direction from m Vin(-) to Vin(+ +); linea ar reflow profile e using Sn/Ag/Cu solder is shown in Figure Vin = 48V. 23. L Layout Con nsideration ns Peak Temp p. 240 -245°C T The EBDW025A A0B power mod dule series are low profile in o order to o be used in fin ne pitch system m card architec ctures. As such h, c component clea arance betwee en the bottom of the power Ramp down max. 4°C/Sec m module and the e mounting board is limited. Avoid placing 217°C c copper areas on the outer lay yer directly und derneath the po ower 200°C m module. Also avoid placing via interconnect ts underneath the Time Limited 90 S Sec. p power module. above 217°C C 150°C F For additional la ayout guide-lin nes, refer to FLT T007A0Z Data Preheat time 100-150 Sec. S Sheet. Ram mp up T Through-Hole Lead-F Free Soldering max. 3 3°C/Sec Information n 25°C Time e Figu ure 23. Recomm mended linear r reflow profile e using T The RoHS-comp pliant, Z version, through-hole products use e the Sn/A Ag/Cu solder. S SAC (Sn/Ag/Cu) Pb-free solder r and RoHS-com mpliant c components. Th he non-Z versio on products us se lead-tin (Pb/ /Sn) MSL L Rating s solder and RoH HS-compliant co omponents. Bo oth version The EBDW025A0B modules have e a MSL rating a as indicated in m modules are de esigned to be p processed through single or d dual w wave soldering machines. Th he pins have an n RoHS-complia ant, the D Device Codes t table, last page e of this docum ment. p pure tin finish th hat is compatible with both P Pb and Pb-free Stor rage and Han ndling w wave soldering processes. A m maximum preh heat rate of 3C C/s is The recommended d storage envir ronment and handling s suggested. The e wave preheat t process shou uld be such tha at the proc cedures for mo oisture-sensitive e surface mount packages is s te emperature of f the power mo odule board is k kept below 210 0C. deta ailed in J-STD-0 033 Rev. A (Han ndling, Packing, Shipping and F For Pb solder, th he recommend ded pot temperature is 260C C, Use of Moisture/Re eflow Sensitive Surface Moun nt Devices). w while the Pb-fre ee solder pot is s 270C max. N Not all RoHS- Mois sture barrier ba ags (MBB) with desiccant are required for c compliant throu ugh-hole produ ucts can be pro ocessed with MSL ratings of 2 or r greater. Thes se sealed packa ages should no ot p paste-through- -hole Pb or Pb-free reflow pro ocess. If additio onal be b broken until tim me of use. Once e the original p package is in nformation is n needed, please e consult with y your GE brok ken, the floor lif fe of the product at condition ns of 30°C and d representative for more details. 60% % relative humid dity varies acco ording to the M MSL rating (see J-ST TD-025A). The s shelf life for dry y packed SMT p packages will R Reflow Lead-Free Sold dering Info ormation be a minimum of 1 12 months from m the bag seal date, when T The RoHS-comp pliant through- -hole products s can be proces ssed store ed at the follow wing conditions s: < 40° C, < 90 0% relative w with the following paste-throu ugh-hole Pb or r Pb-free reflow w hum midity. p process. M March 18, 2016 ©2 2016 General Ele ectric Company. A All rights reserve ed. Page 13 3 OUTPUT OUTPUT CUR CURRENT RENT, I I (A) (A) O O Temp Data Sheet GE EBDW025A0B Barracuda™ Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output Power Modules: Soldering and Cleaning Application Note Post Solder Cleaning and Drying (AP01-056EPS). Considerations Post solder cleaning is usually the final circuit-board assembly process prior to electrical board testing. The result of inadequate cleaning and drying can affect both the reliability of a power module and the testability of the finished circuit-board assembly. For guidance on appropriate soldering, cleaning and drying procedures, refer to GE Board Mounted EMC Consideration The circuit and plots in Figure 24 shows a suggested configuration to meet the conducted emission limits of EN55022 Class B. For further information on designing for EMC compliance, please refer to the FLT012A0Z data sheet. Level [dBµV] 80 70 60 +x 50 +x + x 40 30 xx x 20 ++ + 10 0 150k 300k 500k 1M 2M 3M 4M5M 7M 10M 30M Frequency [Hz] x xMES CE0916111952_fin QP + +MES CE0916111952_fin AV MES CE0916111952_pre PK MES CE0916111952_pre AV Figure 24. EMC Considerations March 18, 2016 ©2016 General Electric Company. All rights reserved. Page 14 Data Sheet GE EBDW025A0B Barracuda™ Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output Packaging Details All versions of the EBDW025A0B are supplied as standard in the plastic trays shown in Figure 25. Each tray contains a total of 18 power modules. The trays are self-stacking and each shipping box for the EBDW025A0B module contains 2 full trays plus one empty hold-down tray giving a total number of 36 power modules. Tray Specification Material PET (1mm) 9 11 Max surface resistivity 10 -10 /PET Color Clear Capacity 18 power modules Min order quantity 36pcs (1 box of 2 full trays + 1 empty top tray) Open Frame Module Tray Base Plate Module Tray Figure 25. EBDW025 Packaging Tray March 18, 2016 ©2016 General Electric Company. All rights reserved. Page 15 Data Sheet GE EBDW025A0B Barracuda™ Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output is used in systems that do support ARA, Bit 4 of the Digital Feature Descriptions MFR_CPIN_ARA_CONFIG command can be used to PMBus Interface Capability reconfigure the module to utilize ARA. In this case, the EBDW025A0B will no longer respond to its programmed The EBDW025A0B series is equipped with a digital PMBus address, when in an ALERT active state. The master is interface to allow the module to be configured, and expected to perform the modified received byte operation, communicate with system controllers. Detailed timing and and retire the ALERT active signal. At this time, the electrical characteristics of the PMBus can be found in the EBDW025A0B will return to it’s resistor programmed address, PMB Power Management Protocol Specification, Part 1, allowing normal master-slave communications to proceed. revision 1.2, available at http://pmbus.org. The EBDW025A0B The EBDW025A0B does not contain capability to arbitrate supports both the 100kHz and 400kHz bus timing data bus contention caused by multiple modules responding requirements. The EBDW025A0B shall stretch the clock, as to the modified received byte operation. Therefore, when the long as it does not exceed the maximum clock LO period of ARA is used in a multiple module PMBus application, it is 35ms. The EBDW025A0B will check the Packet Error Checking necessary to have the EBDW025A0B module at the lowest scheme (PEC) byte, if provided by the PMBus master, and programmed address in order for the host to properly include a PEC byte in all responses to the master. However, determine all modules’ address that are associated with an the EBDW025A0B does not require a PEC byte from the active SMBAlert. Please contact your GE sales representative PMBus master. for further assistance, and for more information on the SMBus alert response protocol, see the System Management The EBDW025A0B supports a subset of the commands in the Bus (SMBus) specification. PMBus 1.2 specification. Most all of the controller parameters can be programmed using the PMBus and stored PMBus Addressing as defaults for later use. All commands that require data The power module can be addressed through the PMBus input or output use the linear format. The exponent of the using a device address. The module has 64 possible data words is fixed at a reasonable value for the command addresses (0 to 63 in decimal) which can be set using and altering the exponent is not supported. Direct format resistors connected from the ADDR0 and ADDR1 pins to GND. data input or output is not supported by the EBDW025A0B. Note that some of these addresses (0 through 12, 40, 44, 45, The supported commands are described in greater detail and 55 in decimal) are reserved according to the SMBus below. specifications and may not be useable. The address is set in the form of two octal (0 to 7) digits, with each pin setting one The EBDW025A0B contains non-volatile memory that is used digit. The ADDR1 pin sets the high order digit and ADDR0 sets to store configuration settings and scale factors. The the low order digit. The resistor values suggested for each settings programmed into the device are not automatically digit are shown in Table 4 (1% tolerance resistors are saved into this non-volatile memory though. The recommended). STORE_DEFAULT_ALL command must be used to commit the Table 4 current settings to non-volatile memory as device defaults. The settings that are capable of being stored in non-volatile Digit Resistor Value (KΩ) memory are noted in their detailed descriptions. 0 10 1 15.4 SMBALERT Interface Capability 2 23.7 The EBDW025A0B also supports the SMBALERT response 3 36.5 protocol. The SMBALERT response protocol is a mechanism through which the EBDW025A0B can alert the PMBus master 4 54.9 that it has an active status or alarm condition via pulling the 5 84.5 SMBALERT pin to an active low. The master processes this 6 130 condition, and simultaneously addresses all slaves on the 7 200 PMBus through the Alert Response Address. Only the slave(s) that caused the alert (and that support the protocol) ADDR1 acknowledges this request. The master performs a modified ADDR0 receive byte operation to get the slave’s address. At this point, the master can use the PMBus status commands to R R ADDR0 ADDR1 query the slave that caused the alert. Note: The EBDW025A0B can only respond to a single address at any given time. Therefore, the factory default state for the SIG_GND EBDW025A0B module is to retain it’s resistor programmed address, when it is in an ALERT active condition, and not Figure 26. Circuit showing connection of resistors used to respond to the ARA. This allows master systems, which do set the PMBus address of the module. not support ARA, to continue to communicate with the slave 2 EBDW025A0B using the programmed address, and using the The user must know which I C addresses are reserved in a various READ_STATUS commands to determine the cause for system for special functions and set the address of the the SMBALERT. The CLEAR_FAULTS command will retire the module to avoid interfering with other system operations. active SMBALERT. However, when the EBDW025A0B module Both 100kHz and 400kHz bus speeds are supported by the March 18, 2016 ©2016 General Electric Company. All rights reserved. Page 16 Data Sheet GE EBDW025A0B Barracuda™ Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output module. Connection for the PMBus interface should follow PU: Factory set to 1. EBDW025A0B requires On/Off(i) pin to the High Power DC specifications given in section 3.1.3 in the be connected to proper input rail for module to power up. SMBus specification V2.0 for the 400kHz bus speed or the This bit is used together with the CMD, CPR and ON bits to Low Power DC specifications in section 3.1.2. The complete determine startup. SMBus specification is available from the SMBus web site, Bit Value Action smbus.org. Module does not power up until commanded by the analog ON/OFF pin and the OPERATION PMBus Data Format 1 command as programmed in bits [2:0] of the For commands that set or report any voltage thresholds ON_OFF_CONFIG register. related to output voltage (including VOUT_COMMAND, CMD: The CMD bit controls how the device responds to the VOUT_MARGIN, POWER_GOOD and READ_VOUT), the module OPERATION command. supports the linear data format consisting of a two byte value with a 16-bit, unsigned mantissa, and a fixed exponent Bit Value Action of -12. The format of the two data bytes is shown below: Module ignores the ON bit in the OPERATION 0 command Module responds to the ON bit in the 1 OPERATION command CPR: Factory set to 1. EBDW025A0B requires On/Off(i) pin to be connected to proper input rail for module to power up. This bit is used together with the CMD and ON bits to determine startup. The value of the number is then given by Bit Value Action -12 Module requires the analog ON/OFF pin to be Value = Mantissa x 2 1 asserted to start the unit For commands that set all other thresholds, voltages or report such quantities, the module supports the linear data PMBus Adjustable Input Undervoltage Lockout format consisting of a two byte value with an 11-bit, two’s The module allows adjustment of the input under voltage complement mantissa and a 5-bit, two’s complement lockout and hysteresis. The command VIN_ON allows setting exponent. The format of the two data bytes is shown below: the input voltage turn on threshold, while the VIN_OFF command sets the input voltage turn off threshold. For both the VIN_ON and VIN_OFF commands, possible values range from 32.000 to 46.000V in 0.125V steps. VIN_ON must be 2.000V greater than VIN_OFF. Both the VIN_ON and VIN_OFF commands use the “Linear” format with two data bytes. The upper five bits [7:3] of the high data byte form the two’s complement representation of the exponent, which is fixed at –3 (decimal). The remaining 11 The value is of the number is then given by bits are used for two’s complement representation of the Exponent Value = Mantissa x 2 th mantissa, with the 11 bit fixed at zero since only positive numbers are valid. The data associated with VIN_ON and PMBus Enabled On/Off VIN_OFF can be stored to non-volatile memory using the The module can also be turned on and off via the PMBus STORE_DEFAULT_ALL command. interface. The OPERATION command is used to actually turn the module on and off via the PMBus, while the PMBus Adjustable Soft Start Delay and Rise Time ON_OFF_CONFIG command configures the combination of The soft start delay and rise time can be adjusted in the analog ON/OFF pin input and PMBus commands needed to module via PMBus. The TON_DELAY command sets the delay turn the module on and off. Bit [7] in the OPERATION time in ms, and allows choosing delay times between 10ms command data byte enables the module, with the following and 500ms, with resolution of 0.5ms. The TON_RISE functions: command sets the rise time in ms, and allows choosing soft start times between 15ms and 500ms, with resolution of 0 : Output is disabled 0.5ms. When setting TON_RISE, make sure that the charging 1 : Output is enabled current for output capacitors can be delivered by the module This module uses the lower five bits of the ON_OFF_CONFIG in addition to any load current to avoid nuisance tripping of data byte to set various ON/OFF options as follows: the overcurrent protection circuitry during startup. Both the TON_RISE and TON_DELAY commands use the “Linear” Bit Position 4 3 2 1 0 format with two data bytes. The upper five bits [7:3] of the Access r r/w r r r high data byte form the two’s complement representation of Function PU CMD CPR POL CPA the exponent, which is fixed at –1 (decimal). The remaining 11 Default Value 1 1 1 1 1 bits are used for two’s complement representation of the March 18, 2016 ©2016 General Electric Company. All rights reserved. Page 17 Data Sheet GE EBDW025A0B Barracuda™ Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output th mantissa, with the 11 bit fixed at zero since only positive data byte form the two’s complement representation of the numbers are valid. The data associated with TON_RISE and exponent, which is fixed at –3 (decimal). The remaining 11 TON_DELAY can be stored to non-volatile memory using the bits are used for two’s complement representation of the th STORE_DEFAULT_ALL command. mantissa, with the 11 bit fixed at zero since only positive numbers are valid. Output Voltage Adjustment Using the PMBus During module manufacture, offset and gain correction The EBDW025A0B module output voltage set point is values are written into the non-volatile memory of the adjusted using the VOUT_COMMAND. The output voltage module to null errors in the tolerance and A/D conversion of setting uses the Linear data format, with the 16 bits of the Vin. The command MFR_VIN_READ_CAL_OFFSET can be used VOUT_COMMAND formatted as an unsigned mantissa, and a to read the offset - two bytes consisting of a five-bit fixed exponent of -12 (decimal) (read from VOUT_MODE). exponent (fixed at -3) and a 11-bit mantissa in two’s -12 complement format. The resolution is 125mV. The command V = Mantissa x 2 OUT MFR_VIN_READ_CAL_GAIN can be used to read the gain The range limits for VOUT_COMMAND are 5.00V to 13.20V, correction - two bytes consisting of a unsigned 16 bit and the resolution is 0.244mV. number. The resolution of this correction factor 0.000122. The data associated with VOUT_COMMAND can be stored to The corrected input voltage reading is then given by: non-volatile memory using the STORE_DEFAULT_ALL command. V (Read) IN Output Voltage Margining Using the PMBus [V (A/D)(MFR_VIN_READ_CAL_GAIN/8192 )] IN The EBDW025A0B module can also have its output voltage MFR_VIN_READ_CAL_OFFSET margined via PMBus commands. The command VOUT_MARGIN_HIGH sets the margin high voltage, while the Measuring Output Current Using the PMBus command VOUT_MARGIN_LOW sets the margin low voltage. The module measures output current by using the output Both the VOUT_MARGIN_HIGH and VOUT_MARGIN_LOW filter inductor winding resistance as a current sense element. commands use the “Linear” mode with the exponent fixed at The module can provide output current information using the –12 (decimal). The data associated with VOUT_MARGIN_HIGH READ_IOUT command. The command returns two bytes of and VOUT_MARGIN_LOW can be stored to non-volatile data in the linear format. The upper five bits [7:3] of the high memory using the STORE_DEFAULT_ALL command. data byte form the two’s complement representation of the The module is commanded to go to the margined high or low exponent, which is fixed at –4 (decimal). The remaining 11 voltages using the OPERATION command. Bits [5:2] are used bits are used for two’s complement representation of the th to enable margining as follows: mantissa, with the 11 bit fixed at zero since only positive numbers are valid. 00XX : Margin Off 0110 : Margin Low (Act on Fault) During module manufacture, offset and gain correction 1010 : Margin High (Act on Fault) values are written into the non-volatile memory of the Measuring Output Voltage Using the PMBus module to null errors in the tolerance and A/D conversion of I . The command MFR_IOUT_CAL_OFFSET can be used to OUT The module can provide output voltage information using the read the offset - two bytes consisting of a five-bit exponent READ_VOUT command. The command returns two bytes of (fixed at -4) and a 11-bit mantissa in two’s complement data in the linear format, with the 16 bits of the READ_VOUT format. The resolution is 0.19A. The command formatted as an unsigned mantissa, and a fixed exponent of MFR_IOUT_CAL_GAIN can be used to read the gain -12 (decimal). correction - two bytes consisting of a unsigned 16 bit number. The resolution of this correction factor 0.000122. During module manufacture, an offset correction value is The READ_IOUT command provides module average output written into the non-volatile memory of the module to null current information. This command only supports positive errors in the tolerance and A/D conversion of V . The OUT current sourced from the module. If the converter is sinking command MFR_VOUT_READ_CAL_OFFSET can be used to current a reading of 0 is provided. read the offset - two bytes consisting of a signed 16-bit mantissa in two’s complement format, using a fixed I (Read) OUT exponent of -12 (decimal). The resolution is 0.244mV. The [I (A/D) (MFR_IOUT _CAL _GAIN / 8192)] OUT corrected Output voltage reading is then given by: MFR_IOUT _CAL _OFFSET V (Read)[V (A/D) OUT OUT Note that the current reading provided by the module is MFR_VOUT_READ_CAL_OFFSET corrected for temperature. Measuring Input Voltage Using the PMBus Measuring the Temperature using the PMBus The module can provide input voltage information using the The module can provide temperature information using the READ_VIN command. The command returns two bytes of READ_TEMPERATURE_1 command. The command returns data in the linear format. The upper five bits [7:3] of the high two bytes of data in the linear format. The upper five bits [7:3] March 18, 2016 ©2016 General Electric Company. All rights reserved. Page 18 Data Sheet GE EBDW025A0B Barracuda™ Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output of the high data byte form the two’s complement STATUS_IOUT : Returns one byte of information relating to representation of the exponent, which is fixed at –2 (decimal). the status of the module’s output current related faults. The remaining 11 bits are used for two’s complement Bit Position Flag Default Value representation of the mantissa. 7 IOUT OC Fault 0 6 X 0 Note that the module’s temperature sensor is located close 5 IOUT OC Warning 0 to the module hot spot TH (see Thermal Considerations).and 1 4 X 0 is subjected to temperatures higher than the ambient air 3 X 0 temperature near the module. The temperature reading will 2 X 0 be highly influenced by module load and airflow conditions. 1 X 0 Reading the Status of the Module using the PMBus 0 X 0 The module supports a number of status information STATUS_INPUT : Returns one byte of information relating to commands implemented in PMBus. However, not all features the status of the module’s input voltage related faults. are supported in these commands. A X in the FLAG cell Bit Position Flag Default Value indicates the bit is not supported. 7 VIN OV Fault 0 6 X 0 STATUS_WORD : Returns two bytes of information with a 5 X 0 summary of the module’s fault/warning conditions. 4 VIN UV Fault 0 High Byte 3 Module Off (Low VIN) 0 Bit Position Flag Default Value 2 X 0 15 VOUT fault 0 1 X 0 14 IOUT fault or warning 0 0 X 0 13 Input Voltage fault 0 12 X 0 STATUS_TEMPERATURE : Returns one byte of information 11 POWER_GOOD# (is negated) 0 relating to the status of the module’s temperature related 10 X 0 faults. 9 X 0 Bit Position Flag Default Value 8 X 0 7 OT Fault 0 6 OT Warning 0 Low Byte 5 X 0 Bit Position Flag Default Value 4 X 0 7 X 0 3 X 0 6 OFF 0 2 X 0 5 VOUT Overvoltage 0 1 X 0 4 IOUT Overcurrent 0 0 X 0 3 VIN Undervoltage 0 2 Temperature 0 STATUS_CML : Returns one byte of information relating to the 1 CML (Comm. Memory Fault) 0 status of the module’s communication related faults. 0 X 0 Bit Position Flag Default Value Invalid/Unsupported STATUS_VOUT : Returns one byte of information relating to 7 0 Command the status of the module’s output voltage related faults. 6 Invalid/Unsupported Data 0 Bit Position Flag Default Value 5 Packet Error Check Failed 0 7 VOUT OV Fault 0 4 X 0 6 X 0 3 X 0 5 X 0 2 X 0 4 X 0 1 X 0 3 X 0 0 X 0 2 X 0 1 X 0 0 X 0 March 18, 2016 ©2016 General Electric Company. All rights reserved. Page 19 Data Sheet GE EBDW025A0B Barracuda™ Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output Summary of Supported PMBus Commands This section outlines the PMBus command support for the EBDW025A0B bus converters. Each supported command is outlined in order of increasing command codes with a quick reference table of all supported commands included at the end of the section. Each command will have the following basic information. Command Name [Code] Command support Data format Factory default Additional information may be provided in tabular form or other format, if necessary. OPERATION [0x01] Command support: On/Off Immediate and Margins (Act on Fault). Soft off with sequencing not supported and Margins (Ignore Fault) not supported. Therefore bits 6, 3, 2, 1 and 0 set as read only at factory defaults. Format 8 bit unsigned (bit field) Bit Position 7 6 5 4 3 2 1 0 Access r/w r r/w r/w r r r r Function ON/OFF Bits[5:4] Bits[3:2] N/A Default Value 1 0 0 0 1 0 0 0 ON_OFF_CONFIG [0x02] Command support: Bit 1 polarity will be set based upon module code [0=Negative on/off logic, 1=positive on/off logic to allow customer system to know hardware on/off logic Format 8 bit unsigned (bit field) Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r/w r r Function (reserved) Bit 4 pu Bit 3 cmd Bit 2 cpr Bit 1 pol Bit 0 cpa module Default Value 0 0 0 1 1 1 1 code CLEAR_FAULTS [0x03] Command support: All functionality STORE_DEFAULT_ALL[0x11] Command support: All functionality – Stores operating parameters to EEprom memory. Command requires ≤ 500ms to execute. Delay any additional commands to module for sufficient time to complete execution. RESTORE_DEFAULT_ALL[0x12] Command support: All functionality – Restores operating parameters from EEprom memory. Command requires ≤ 200ms to execute. Delay any additional commands to module for sufficient time to complete execution. VOUT_MODE[0x20] Command support: Supported. Factory default: 0x14 – indicates linear mode with exp = -12 Format 8 bit unsigned (bit field) Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r r Function Mode (linear) 2’s complement exponent Default Value 0 0 0 1 0 1 0 0 VOUT_COMMAND [0x21] Data format: 16 bit unsigned mantissa (implied exponent per VOUT_MODE) -12 Factory default: 12.000V ( 12.00 / 2 → 49,152 = 0xC000 ) Range limits (max/min): 13.200V/5.000V Units: volt Command support: Supported, except when Trim function is selected via MFR_C1_C2_ARA_CONFIG [0xE0]. VOUT_CAL_OFFSET [0x23] Range limits (max/min): +0.25/-0.25 Units: volt Command support: read/write support, lockout per MFR_DEVICE_TYPE, functionality implemented March 18, 2016 ©2016 General Electric Company. All rights reserved. Page 20 Data Sheet GE EBDW025A0B Barracuda™ Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output VOUT_MARGIN_HIGH [0x25] Range limits (max/min): 13.2/5.0 Units: volt Command support: read/write support, full functionality except “Ignore faults”. Note: Range cross-check - value must be greater than VOUT_MARGIN_LOW value. VOUT_MARGIN_LOW [0x26] Range limits (max/min): 13.2/5.0 Units: volt Command support: read/write support, full functionality except “Ignore faults”. Note: Range cross-check - value must be less than VOUT_MARGIN_HIGH value. VOUT_DROOP [0x28] Factory default: 0 (No droop); 15 (Parallel operation) Range limits (max/min): 50/0 Units: mv/A Command support: All functionality VIN_ON [0x35] Range limits (max/min): 46/32 Units: volt Command support: All functionality Note: Special interlock checks between VIN_ON and VIN_OFF maintain a hysteresis gap of 2V minimum and do not allow the OFF level to be higher than and ON level VIN_OFF [0x36] Range limits (max/min): 46/32 Units: volt Command support: All functionality Note: Special interlock checks between VIN_ON and VIN_OFF maintain a hysteresis gap of 2V minimum and do not allow the OFF level to be higher than and ON level VOUT_OV_FAULT_LIMIT [0x40] Range limits (max/min): 15.99/8.0 Units: volt Command support: All functionality Note: Range cross- check – value must be greater than VOUT_COMMAND value. VOUT_OV_FAULT_RESPONSE [0x41] Command support: ‐ Response settings (bits RSP0:1) – only a setting of 10, unit shuts down and responds according to the retry settings below, is supported. ‐ Retry settings (bits RS0:2) – only settings of 000 (unit does not attempt to restart on fault) and 111 unit continuously restarts (normal startup) while fault is present until commanded off, bias power is removed or another fault condition causes the unit to shutdown. ‐ Delay time setting (bits 0-2) – only DT0:2 = 0 (no delay) supported. Default Settings: The default settings for the VOUT_OV_FAULT_RESPONSE command are; ‐ The unit shuts down in response to a VOUT over voltage condition. ‐ The unit will continuously restart (normal startup) while the VOUT over voltage condition is present until it is commanded off, bias power is removed or another fault condition causes the unit to shutdown. ‐ The shutdown delay is set to 0 delay cycles. Format 8 bit unsigned (bit field) Bit Position 7 6 5 4 3 2 1 0 Access r r r/w r/w r/w r r r Function RSP[1] RSP[0] RS[2] RS[1] RS[0] DT[2] DT[1] DT[0] Default Value 1 0 1 1 1 0 0 0 March 18, 2016 ©2016 General Electric Company. All rights reserved. Page 21 Data Sheet GE EBDW025A0B Barracuda™ Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output IOUT_OC_FAULT_LIMIT [0x46] Range limits (max/min): 60/20 Units: amp Command support: All functionality Note: Range cross-check – value must be greater than IOUT_OC_WARN_LIMIT value. IOUT_OC_FAULT_RESPONSE [0x47] Command support: ‐ Response settings (bits RSP0:1) – only settings of 11, unit shuts down and responds according to the retry settings below, is supported. ‐ Retry settings (bits RS0:2) – only settings of 000 (unit does not attempt to restart on fault) and 111 unit continuously restarts (normal startup) while fault is present until commanded off, bias power is removed or another fault condition causes the unit to shutdown. ‐ Delay time setting (bits 0-2) – only DT0:2 = 0 (no delay) supported. Default Settings: The default settings for the IOUT_OC_FAULT_RESPONSE command are; ‐ The unit shuts down in response to an IOUT over current condition. ‐ The unit will continuously restart (normal startup) while the IOUT over current condition is present until it is commanded off, bias power is removed or another fault condition causes the unit to shutdown. ‐ The shutdown delay is set to 0 delay cycles. Format 8 bit unsigned (bit field) Bit Position 7 6 5 4 3 2 1 0 Access r r r/w r/w r/w r r r Function RSP[1] RSP[0] RS[2] RS[1] RS[0] DT[2] DT[1] DT[0] Default Value 1 1 1 1 1 0 0 0 IOUT_OC_WARN_LIMIT [0x4A] Range limits (max/min): 40/10 Units: amp Command support: read/write support, functionality complete Note: Range cross-check – value must be less than IOUT_OC_FAULT_LIMIT value. OT_FAULT_LIMIT [0x4F] Range limits (max/min): 140/25 Units: degrees C. Command support: All functionality Note: Range cross-check – value must be greater than OT_WARN_LIMIT value. OT_FAULT_RESPONSE [0x50] Command support: ‐ Response settings (bits RSP0:1) – only setting of 10, unit shuts down and responds according to the retry settings below. ‐ Retry settings (bits RS0:2) – only settings of 000 (unit does not attempt to restart on fault) and 111 unit continuously restarts (normal startup) while fault is present until commanded off, bias power is removed or another fault condition causes the unit to shutdown. ‐ Delay time setting (bits 0-2) – only DT0:2 = 0 (no delay) supported. Default Settings: The default settings for the OT_FAULT_RESPONSE command are; ‐ The unit shuts down in response to an over-temperature condition. ‐ The unit will continuously restart (normal startup) while the over-temperature condition is present until it is commanded off, bias power is removed or another fault condition causes the unit to shutdown. ‐ The shutdown delay is set to 0 delay cycles. Format 8 bit unsigned (bit field) Bit Position 7 6 5 4 3 2 1 0 Access r r r/w r/w r/w r r r Function RSP[1] RSP[0] RS[2] RS[1] RS[0] DT[2] DT[1] DT[0] Default Value 1 0 1 1 1 0 0 0 March 18, 2016 ©2016 General Electric Company. All rights reserved. Page 22 Data Sheet GE EBDW025A0B Barracuda™ Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output OT_WARN_LIMIT [0x51] Range limits (max/min): 125/25 Units: degrees C. Command support: All functionality Note: Range cross-check – value must be less than OT_FAULT_LIMIT value. VIN_OV_FAULT_LIMIT [0x55] Range limits (max/min): 90/48 Units: volt Command support: All functionality VIN_OV_FAULT_RESPONSE [0x56] Command support: Response settings (bits RSP0:1) – only settings of 11 (The device’s output is disabled while the fault is present.) is supported.. ‐ Retry settings (bits RS0:2) – only settings of 000 (unit does not attempt to restart on fault. ‐ Delay time setting (bits 0-2) – only DT0:2 = 0 (no delay) supported. Default Settings: The default settings for the VIN_OV_FAULT_RESPONSE command are; ‐ The unit shuts down in response to a VIN over voltage condition. ‐ The unit will continuously prepares to restart (normal startup) while the VIN over voltage condition is present until it is commanded off, bias power is removed, the VIN over voltage condition is removed, or another fault condition causes the unit to shutdown. ‐ The shutdown delay is set to 0 delay cycles. Format 8 bit unsigned (bit field) Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r r Function RSP[1] RSP[0] RS[2] RS[1] RS[0] DT[2] DT[1] DT[0] Default Value 1 1 0 0 0 0 0 0 POWER_GOOD_ON [0x5E] Range limits (max/min): 13.2/4.8 Units: volt Command support: full support Note: Range cross-check – value must be greater than POWER_GOOD_OFF value by 1.6V. POWER_GOOD_OFF [0x5F] Range limits (max/min): 13.2/3.0 Units: volt Command support: full support Note: Range cross-check – value must be less than POWER_GOOD_ON value by 1.6V. TON_DELAY [0x60] Range limits (max/min): 500/40 Units: milliseconds Command support: full support TON_RISE [0x61] Range limits (max/min): 500/40 Units: milliseconds Command support: full support March 18, 2016 ©2016 General Electric Company. All rights reserved. Page 23 Data Sheet GE EBDW025A0B Barracuda™ Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output STATUS_WORD [0x79] Command support: full implementation for supported functions (note: Fans, MFR_SPECIFIC, Unknown not supported) Format 8 bit unsigned (bit field) Bit Position 15 14 13 12 11 10 9 8 Access r r r r r r r r #PWR_ UN 1 1 1 Function VOUT I/POUT INPUT MFR_SPEC FANS OTHER 1 GOOD KNOWN Format 8 bit unsigned (bit field) Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r r OUTPUT VOUT_O VIN_UV NONE OF 1 BUSY Function IOUT_OC _FAULT TEMP CML 1 _OFF V _FAULT _FAULT ABOVE (1) Not supported STATUS_VOUT [0x7A] Command support: VOUT_OV_FAULT support, all bit reset supported Format 8 bit unsigned (bit field) Bit Position 7 6 5 4 3 2 1 0 Access r/reset(1) r/ reset r/ reset r/ reset r/ reset r/ reset r/ reset r/ reset VOUT_ TON_ TOFF_ VOUT VOUT_OV VOUT_OV VOUT_UV VOUT_UV Function MAX MAX_ MAX_ TRACKING 1 1 1 _FAULT _WARN _WARN _FAULT 1 1 1 1 _WARN FAULT WARN ERROR (1) Not supported STATUS_IOUT [0x7B] Command support: IOUT_OC_FAULT support, all bit reset supported Format 8 bit unsigned (bit field) Bit Position 7 6 5 4 3 2 1 0 Access r/ reset(1) r/ reset r/ reset r/ reset r/ reset r/ reset r/ reset r/ reset Function In Power IOUT_OC IOUT_OC _LV IOUT_OC IOUT_UC Current Share POUT_OP POUT_OP Limiting 1 1 1 1 1 _FAULT _FAULT _WARN _FAULT Fault _FAULT _WARN 1 Mode (1) Not supported STATUS_INPUT [0x7C] Command support: VIN_OV_FAULT support, all bit reset supported Format 8 bit unsigned (bit field) Bit Position 7 6 5 4 3 2 1 0 Access r/ reset(1) r/ reset r/ reset r/ reset r/ reset r/ reset r/ reset r/ reset Unit Off VIN_OV VIN_OV VIN_UV VIN_UV IIN_OC IIN_OC PIN_OP Function (low input 1 1 1 1 1 _FAULT _WARN _WARN _FAULT _FAULT _WARN _WARN voltage) (1) Not supported STATUS_TEMPERATURE [0x7D] Command support: OT_WARN, OT_FAULT supported, all bit reset supported Format 8 bit unsigned (bit field) Bit Position 7 6 5 4 3 2 1 0 Access r/ reset(1) r/ reset r/ reset r/ reset r/ reset r/ reset r/ reset r/ reset UT_ UT_ Function OT_ FAULT OT_ WARN reserved reserved reserved reserved 1 1 WARN FAULT (1) Not supported March 18, 2016 ©2016 General Electric Company. All rights reserved. Page 24 Data Sheet GE EBDW025A0B Barracuda™ Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output STATUS_CML [0x7E] Command support: PEC_FAULT, INVALID_DATA, INVALID_CMD supported, all bit reset supported Format 8 bit unsigned (bit field) Bit Position 7 6 5 4 3 2 1 0 Access r/ reset(1) r/ reset r/ reset r/ reset r/ reset r/ reset r/ reset r/ reset COM Memory/ INVALID INVALID MEMORY PROC Function PEC FAILED reserved FAULT Logic fault 1 1 CMD DATA FAULT FAULT 1 1 (other) (other) (1) Not supported READ_VIN [0x88] Command support: full support READ_VOUT [0x8B] Command support: full support READ_IOUT [0x8C] Command support: full support READ_TEMPERATURE_1 [0x8D] Command support: full support MFR_DEVICE_TYPE [0xD0] Command support: partial support in place (Mod Name) Format Unsigned Binary Bit Pos. 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 Access r/w r/w r/w r/w r/w r r r r/w r/w r/w r/w r/w r/w r/w r/w Function Reserved Module Name WPE Res Default 0 0 0 0 0 0 0 0 1 0 0 0 1 0 1 0 Byte Bit Description Value Meaning High Byte 7:0 Reserved 1 7:2 Module Name 1xxxxx Module Name 0 Write Protect Enable not active. Low Byte 1 WPE 1 Write Protect Enable active. 0 Reserved 0 Reserved 1. Present module designations (Non-isolated units will have a 0XXXXX format) a. QBDW033A0B4xxx: 100000 b. QBDW025A0B4xxx: 100001 c. EBDW025A0B4xxx: 100010 d. EBDW020A0B4xxx: 100011 MFR_VOUT_READ_CAL_GAIN [0xD1] Factory default: 0x2000 Range limits (max/min): 0x2666/0x1999 Units: N/A Command support: support for VOUT gain calibration (factor in flash), lockout per MFR_DEVICE_TYPE MFR_VOUT_READ_CAL_OFFSET [0xD2] Range limits (max/min): exp must = -12 Units: N/A Command support: support for VOUT offset calibration (factor in flash), lockout per MFR_DEVICE_TYPE MFR_VIN_READ_CAL_GAIN [0xD3] Factory default: 0X2000 Range limits (max/min): 0x2666/0x1999 Command support: support for VIN gain calibration (factor in flash), lockout per MFR_DEVICE_TYPE March 18, 2016 ©2016 General Electric Company. All rights reserved. Page 25 Data Sheet GE EBDW025A0B Barracuda™ Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output MFR_VIN_READ_CAL_OFFSET [0xD4] Data format: VIN linear format Range limits (max/min): exp must = -3 Units: N/A Command support: support for VIN offset calibration (factor in flash), lockout per MFR_DEVICE_TYPE MFR_IOUT_CAL_GAIN [0xD6] Range limits (max/min): 0x2666/0x1999 Units: N/A Command support: support for IOUT gain calibration, lockout per MFR_DEVICE_TYPE MFR_IOUT_CAL_OFFSET [0xD7] Range limits (max/min): exp must = -4 Units: N/A Command support: support for IOUT offset calibration, lockout per MFR_DEVICE_TYPE MFR_FW_REV [0xDB] Range limits (max/min): 0 - 0xff (0.00 – 15.15) Units: N/A Command support: full read support MFR_C1_C2_ARA_CONFIG [0xE0] Command Code Command support: Full support. Command MFR_C1_C2_ARA_CONFIG Format 8 bit unsigned (bit field) 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 Reserved ARA Assignment Table Default Value 0 0 0 0 0 0 0 0 Bit Description Value Meaning 7:5 Reserved 000 Reserved ARA not functional, module remains at resistor programmed address when SMBLAERT 0 is asserted 4 ARA 1 ARA functional, module responds to ARA only, when SMBLAERT is asserted T/C1 pin: ON/OFF (Secondary) 0000 C2 pin: POWER_GOOD PIN T/C1 pin: TRIM 3:0 0001 Configuration* C2 pin: POWER_GOOD T/C1 pin: TRIM 0010 C2 pin: ON/OFF (Secondary) * All EBDW without –P option Bit Description Value Meaning 7:5 Reserved 000 Reserved ARA not functional, module remains at resistor programmed address when SMBLAERT 0 is asserted 4 ARA 1 ARA functional, module responds to ARA only, when SMBLAERT is asserted PIN T/C1 pin: ON/OFF (Secondary) 3:0 0000 Configuration** C2 pin: POWER_GOOD ** All EBDW with –P option March 18, 2016 ©2016 General Electric Company. All rights reserved. Page 26 Data Sheet GE EBDW025A0B Barracuda™ Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output MFR_ C2_LOGIC [0xE1] Command Code Command support: full support (bits 0 and 1) as follows: MFR_C2_LOGIC Command Format 8 bit unsigned (bit field) Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r/ w r/ w Function Reserved On/Off(primary & secondary) combination logic Default Value 0 0 0 0 0 0 0 0 Bit Description Value Meaning 7:2 Reserved 000000 Reserved 0 Secondary side on/off pin state, when mapped to either T/C1 or C2, is ignored ON/OFF 1 Configuration 1 AND – Primary and Secondary side on/off 0 Negative Logic (Low Enable: Input < 0.8V wrt Vout(-) Secondary Side 0 ON/OFF Logic 1 Positive Logic (High Enable: Input > 2.0V wrt Vout(-) MFR_PGOOD_POLARITY [0xE2] Command support: full support (bit 0) as follows: Bit 0: 0 = Negative PGOOD logic (module PGOOD asserted when pin is LO, PGOOD de-asserted when pin is HI) 1 = Positive PGOOD logic (module PGOOD de-asserted when pin is LO, PGOOD asserted when pin is HI) Command MFR_PGOOD_POLARITY Format 8 bit unsigned (bit field) Bit Position 7 6 5 4 3 2 1 0 Access r r r r r r r r/w Function Reserved logic Default Value 0 0 0 0 0 0 0 1 MFR_MODULE_DATE_LOC_SN [0xF0] Command support: read/write support for 12 byte block, lockout per MFR_DEVICE_TYPE March 18, 2016 ©2016 General Electric Company. All rights reserved. Page 27 Data Sheet GE EBDW025A0B Barracuda™ Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output Barracuda PMBus Command Quick Reference Table CMD DATA DATA PMBUS CMD DATA FORMAT TRANSFER TYPE DEFAULT VALUE CODE BYTES UNITS OPERATION 0x01 1 Bit field N/A R/W byte 0x80 0x1D (Neg Logic) ON_OFF_CONFIG 0x02 1 Bit field N/A R/W byte 0x1F (Pos Logic) CLEAR_FAULTS 0x03 0 N/A N/A Send byte none STORE_DEFAULT_ALL 0x11 0 N/A N/A Send byte none RESTORE_DEFAULT_ALL 0x12 0 N/A N/A Send byte none VOUT_MODE 0x20 1 mode + exp N/A Read byte 0x14 VOUT_COMMAND 0x21 2 VOUT linear Volts R/W word 12.000V VOUT_CAL_OFFSET 0x23 2 VOUT linear Volts R/W word MS VOUT_MARGIN_HIGH 0x25 2 VOUT linear Volts R/W word 12.600V VOUT_MARGIN_LOW 0x26 2 VOUT linear Volts R/W word 11.400V VOUT_DROOP 0x28 2 VOUT linear mV/A R/W word 0 VIN_ON 0x35 2 VIN linear v R/W word 35.000V VIN_OFF 0x36 2 VIN linear v R/W word 33.000V VOUT_OV_FAULT_LIMIT 0x40 2 VOUT linear v R/W word 15.99V VOUT_OV_FAULT_RESPONSE 0x41 1 Bit field N/A R/W byte 0xB8 IOUT_OC_FAULT_LIMIT 0x46 2 IOUT linear Amps R/W word 30.000A IOUT_OC_FAULT_RESPONSE 0x47 1 Bit field N/A R/W byte 0xF8 IOUT_OC_WARN_LIMIT 0x4A 2 IOUT linear Amps R/W word 27.500A OT_FAULT_LIMIT 0x4F 2 TEMP linear Deg. C R/W word 135C OT_FAULT_RESPONSE 0x50 1 Bit field N/A R/W byte 0xB8 OT_WARN_LIMIT 0x51 2 TEMP linear Deg. C R/W word 125C VIN_OV_FAULT_LIMIT 0x55 2 VIN linear v R/W word 85V VIN_OV_FAULT_RESPONSE 0x56 1 Bit field N/A R/W byte 0xC0 POWER_GOOD_ON 0x5E 2 VOUT linear v R/W word 10.100V POWER_GOOD_OFF 0x5F 2 VOUT linear V R/W word 8.500V TON_DELAY 0x60 2 Time linear msec R/W word 40ms TON_RISE 0x61 2 Time linear msec R/W word 40ms STATUS_WORD 0x79 2 Bit field N/A Read word N/A STATUS_VOUT 0x7A 1 Bit field N/A Read byte N/A STATUS_IOUT 0x7B 1 Bit field N/A Read byte N/A STATUS_INPUT 0x7C 1 Bit field N/A Read byte N/A STATUS_TEMPERATURE 0x7D 1 Bit field N/A Read byte N/A STATUS_CML 0x7E 1 Bit field N/A Read byte N/A READ_VIN 0x88 2 VIN linear v Read word N/A READ_VOUT 0x8B 2 VOUT linear v Read word N/A READ_IOUT 0x8C 2 IOUT linear Amps Read word N/A READ_TEMP1 0x8D 2 TEMP linear Deg. C Read word N/A PMBUS_REVISION 0x98 1 Bit Field n/a Read byte 1.2 MFR_DEVICE_TYPE 0xD0 2 Custom N/A R/W word 0x008A MFR_VOUT_READ_CAL_GAIN 0xD1 2 16 bit unsigned N/A R/W word 0x2000 MFR_VOUT_READ_CAL_OFF 0xD2 2 VOUT linear N/A R/W word MS MFR_VIN_READ_CAL_GAIN 0xD3 2 16 bit unsigned N/A R/W word MS MFR_VIN_READ_CAL_OFF 0xD4 2 VIN linear N/A R/W word MS MFR_IOUT_CAL_GAIN 0xD6 2 16 bit unsigned N/A R/W word MS MFR_IOUT_CAL_OFFSET 0xD7 2 IOUT linear N/A R/W word MS MFR_FW_REV 0xDB 2 8 bit unsigned N/A Read byte 0xMj.Mn.Bh.Bl MFR_C1_C2_ARA_CONFIG 0xE0 1 Bit field N/A R/W byte 0x00 MFR_ C2_LOGIC 0xE1 1 Bit field N/A R/W byte 0x00 MFR_PGOOD _POLARITY 0xE2 1 Bit field N/A R/W byte 0x01 MFR_MOD_DATE_LOC_SN 0xF0 12 8 bit char N/A R/W block YYLLWW123456 MS=Module specific March 18, 2016 ©2016 General Electric Company. All rights reserved. Page 28 Data Sh heet G GE E EBDW02 25A0B Ba arracuda a™ Serie es; DC-DC C Converter Pow wer Modu ules 3 36-75Vdc Input; 12.0V Vdc, 25.0A, , 300W Out tput M Mechanical Outline fo or EBDW02 25A0B Thro ough-hole M Module D Dimensions are e in millimeters s and [inches]. T Tolerances: x.x mm  0.5 mm [x.xx in.  0.02 in.] (Unless oth herwise indicat ted) x.xx mm  0.25 mm m [x.xxx in  0.0 010 in.] Top side e label includes s GE name, pro oduct designatiion and date co ode. Top View w* Side View w *For optional pin lengths, see Table 2, Device C Coding Scheme e and Options Bottom View w Pin N Number Pin N Name 1 VIN N(+) 2 ON/ /OFF 3 VIN N(-) 4 VOU UT(-) 5 SENSE(-) 6 TRIM M/C1 7 SENS SE(+) 8 VOU UT(+) 9 C C2 10 SIG_ _GND 11 DA ATA 12 SMBA ALERT 13 CL LK 14 ADD DR1 15 ADD DR0 M March 18, 2016 ©2 2016 General Ele ectric Company. A All rights reserve ed. Page 29 9 Data Sh heet G GE E EBDW02 25A0B Ba arracuda a™ Serie es; DC-DC C Converter Pow wer Modu ules 3 36-75Vdc Input; 12.0V Vdc, 25.0A, , 300W Out tput M Mechanical Outline fo or EBDW02 25A0B–H (B Baseplate v version) Mo odule D Dimensions are e in millimeters s and [inches]. T Tolerances: x.x mm  0.5 mm [x.xx in.  0.02 in.] (Unless oth herwise indicat ted) x.xx mm  0.25 mm m [x.xxx in  0.0 010 in.] Top View * *Side label inclu udes product d designation, an nd data code. Side View* * * *For optional piin lengths, see Table 2, Device Coding Scheme and Option ns Bottom View*** ***Bottom lab bel includes GE name, produc ct designation, and data code e Pin Number Piin Name 1 VIN(+) 2 O ON/OFF 3 VIN(-) 4 V VOUT(-) 5 S SENSE(-) 6 T TRIM/C1 7 S SENSE(+) 8 V VOUT(+) 9 C2 10 SIG_GND 11 DATA 12 SM MBALERT 13 CLK 14 A ADDR1 15 A ADDR0 M March 18, 2016 ©2 2016 General Ele ectric Company. A All rights reserve ed. Page 30 0 Data Sh heet G GE E EBDW02 25A0B Ba arracuda a™ Serie es; DC-DC C Converter Pow wer Modu ules 3 36-75Vdc Input; 12.0V Vdc, 25.0A, , 300W Out tput M Mechanical Outline fo or EBDW02 25A0B–35P PHZ (Basepl late version) Module D Dimensions are e in millimeters s and [inches]. T Tolerances: x.x mm  0.5 mm [x.xx in.  0.02 in.] (Unless oth herwise indicat ted) x.xx mm  0.25 mm m [x.xxx in  0.0 010 in.] Top View * *Side label inclu udes product d designation, an nd data code. Side View* * * *For optional piin lengths, see Table 2, Device Coding Scheme and Option ns Bottom View*** ***Bottom lab bel includes GE name, produc ct designation, and data code e Pin Number Piin Name 1 VIN(+) 2 O ON/OFF 3 VIN(-) 4 V VOUT(-) 5 S SENSE(-) 6 T TRIM/C1 7 S SENSE(+) 8 V VOUT(+) 9 C2 10 SIG_GND 11 DATA 12 SM MBALERT 13 CLK 14 A ADDR1 15 A ADDR0 M March 18, 2016 ©2 2016 General Ele ectric Company. A All rights reserve ed. Page 31 1 Data Sheet GE EBDW025A0B Barracuda™ Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output Recommended Pad Layouts 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.] Through-Hole Modules Pin Number Pin Name 1 VIN(+) 2 ON/OFF 3 VIN(-) 4 VOUT(-) 5 SENSE(-) 6 TRIM/C1 7 SENSE(+) 8 VOUT(+) 9 C2 10 SIG_GND 11 DATA 12 SMBALERT 13 CLK 14 ADDR1 15 ADDR0 Hole and Pad diameter recommendations: Pin Number Hole Dia mm [in] Pad Dia mm [in] 1, 2, 3, 5, 6, 7 1.6 [.063] 2.1 [.083] 4, 8 2.2 [.087] 3.2 [.126] 9, 10, 11, 12, 13, 14, 15 1.0 [.039] 1.5 [.059] March 18, 2016 ©2016 General Electric Company. All rights reserved. Page 32 Data Sheet GE EBDW025A0B Barracuda™ Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output Ordering Information Please contact your GE Sales Representative for pricing, availability and optional features. Table 1. Device Codes Output Output Connector MSL Product codes Input Voltage Efficiency Comcodes Voltage Current Type Rating EBDW025A0B41Z 48V (3675Vdc) 12V 25A 94.7% Through hole 2a CC109165973 EBDW025A0B841Z 12V 25A 94.7% Through hole 2a 150033964 48V (3675Vdc) EBDW025A0B641-HZ 48V (3675Vdc) 12V 25A 94.7% Through hole 2a 150023453 EBDW025A0B641-PZ 48V (3675Vdc) 12V 25A 94.7% Through hole 2a 150047405 EBDW025A0B641-PHZ 48V (3675Vdc) 12V 25A 94.7% Through hole 2a CC109172945 EBDW025A0B641-03HZ 48V (3675Vdc) 12V 25A 94.7% Through hole 2a 150033148 Table 2. Device Options 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.ge.com/powerelectronics 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. March 18, 2016 ©2016 General Electric Company. All rights reserved. Version 1.29