Data Sheet GE EBDW020A0B Barracuda* Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 20.0A, 240W Output Features RoHS Compliant  Compliant to RoHS II 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 >95.4% at 12Vdc, 55% to 90% rated output  Wide input voltage range: 36-75Vdc  Delivers up to 20A 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 Applications  Industry standard, DOSA compliant Eighth brick: 58.4 mm x 22.8 mm x 11.3 mm  Distributed power architectures (2.30 in x 0.90 in x 0.44 in)  Intermediate bus voltage applications  Constant switching frequency  Servers and storage applications  Positive remote On/Off logic  Networking equipment including Power over Ethernet  Output over current/voltage protection (PoE)  Digital interface with PMBus™ Rev.1.2 compliance^  Fan assemblies other systems requiring a tightly  Over temperature protection regulated output voltage  Wide operating temperature range (-40°C to 85°C) Options  CAN/CSA† C22.2 No. 60950-1-07, 2nd Edition + A1:2011 # (MOD), ANSI/UL 60950-1-2011, IEC 60950-1 (2nd edition);  Negative Remote On/Off logic (1=option code, factory am1, and VDE‡ (EN60950-1, 2nd Ed.) Licensed 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  Base plate option (-H=option code) rating per EN60950-1  Passive Droop Load Sharing (-P=option code) ¤  2250 Vdc Isolation tested in compliance with IEEE 802.3 PoE  Surface Mount Pins (SMT, -S=option code) standards  ISO** 9001 and ISO14001 certified manufacturing facilities Description The EBDW020A0B 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 EBDW020A0B series operate from an input voltage range of 36 to 75V , and provide up to 20A output current at output voltages from 5.0V to 12.0V , and 240W output power from dc dc dc 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 reaching 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 EBDW020A0B Barracuda Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 20.0A, 240W 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, 50VIN to 75VIN (Output may exceed regulation limits, no protective - - 10 V/µs shutdowns shall activate, C =220μF to C ) O O, 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 VO(-)) All V -0.3 3.6 V pin dc TRIM/C1, C2, ADDR0, ADDR1, CLK, DATA, SMBALERT Storage Temperature All Tstg -55 125 °C 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 - - 7 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 IIN,stand-by 25 mA (V = V , module disabled) IN IN, nom External Input Capacitance All CIN 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 - 900 - mArms 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; VIN= 48V, IO= IOmax ; see All - 24 - mAp-p Figure 11) 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 EBDW020A0B Barracuda Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 20.0A, 240W 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=10A, 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 VO 11.76  12.24 Vdc (Over all operating input voltage (40V to 75V), resistive load, and temperature conditions until end of life) -P Option VO 11.63  12.37 Vdc Output Voltage (V =36V, T = 25ºC) All V 10.8 V IN A O   dc Output Regulation [VIN, min = 40V] Line (V =V to V ) All w/o -P 0.2 % V IN IN, min IN, max   O, set Load (IO=IO, min to IO, max) All w/o -P  0.2  % VO, set Line (V =V to V) -P Option 0.5 % V IN IN, min IN, max   O, set Load (I =I to I ), Intentional Droop -P Option 0.50 V O O, min O, max dc Temperature (TA = -40ºC to +85ºC) All  2  % VO, 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  mVrms Peak-to-Peak (5Hz to 20MHz bandwidth) All 200 mV   pk-pk All w/o -02 C 220 10,000 μF OUT External Output Capacitance  1 All w -02 C 220 10,000 μF OUT Output Current All I 0 20 A O dc VOUT_OC_FAULT_LIMIT (Default) All w/o -02 I  23  A O,lim dc (Adjustable via PMBus) All w -02 IO,lim 28 Adc   Efficiency (V =V , V = V , T=25°C) IN IN, nom O O,set A I = 100% I All η 95.2 % O O, max IO= 55% - 90% IO, max All η 95.4 % Switching Frequency (primary MOSFETs) fsw 150 kHz (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 1 x 470μF polymer capacitor across the load.) Load Change from I = 50% to 75% of I : O O,max All w/o - __ __ Peak Deviation V 750 mVpk pk 02 __ __ Settling Time (VO <10% peak deviation) ts 800 s Load Change from I = 75% to 50% of I : O O,max All w/o - __ __ Peak Deviation V 750 mVpk pk 02 __ __ Settling Time (VO <10% peak deviation) ts 800 s (dI /d =1A/10s; V =V , ; T =25°C; tested with a 10μF O t in in nom A ceramic and 1 x 220μF polymer capacitor across the load.) Load Change from IO = 50% to 75% of IO,max: __ __ Peak Deviation All w -02 Vpk 300 mVpk __ __ Settling Time (VO <10% peak deviation) ts 700 s Load Change from IO = 75% to 50% of IO,max: __ __ Peak Deviation All w -02 Vpk 300 mVpk __ __ Settling Time (VO <10% peak deviation) ts 700 s Note (1): Polymer capacitors required. Isolation Specifications Parameter Symbol Min Typ Max Unit Isolation Capacitance Ciso  1000  pF Isolation Resistance Riso 10   MΩ March 18, 2016 ©2016 General Electric Company. All rights reserved. Page 3 Data Sheet GE EBDW020A0B Barracuda Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 20.0A, 240W 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 (V =V to V , Signal referenced to Vterminal) IN IN, min IN, max IN- Negative Logic: device code suffix “1” Logic Low = module On, Logic High = module Off Positive Logic: No device code suffix required Logic Low = module Off, Logic High = module On On/Off Thresholds: Remote On/Off Current – Logic Low (Vin =100V) All Ion/off 280  310 μA Logic Low Voltage All Von/off -0.3  0.8 Vdc Logic High Voltage – (Typ = Open Collector) All V 2.0  14.5 V on/off dc Logic High 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 (IO=IO, max) (Adjustable via PMBus) All w/o -P Tdelay, Enable with Vin   160 ms Tdelay=Time until VO = 10% of VO,set from either application of Vin T delay, Enable with All w/o-P   40 ms with Remote On/Off set to On (Enable with Vin); or operation of on/off Remote On/Off from Off to On with Vin already applied for at w/ -P T , 180* ms delay Enable with Vin   least 150 milli-seconds (Enable with on/off). Tdelay, Enable with * Increased T due to startup for parallel modules. delay w/ -P 40* ms   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 Trise when Vo exists at startup for parallel w/ -P Trise   300* ms modules. Load Sharing Current Balance (difference in output current across all modules with outputs in -P Option Idiff 3 A parallel, no load to full load) Remote Sense Range All VSense   0.5 Vdc External Resistor Trim Range All V 6.0 13.2 V O, set dc VOUT_COMMAND All VO, set 5.0 13.2 Vdc (Adjustable via PMBus) VOUT_OV_FAULT_LIMIT All VO,limit 15 Vdc (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 Vdc VIN_OFF 32 33.5 34.5 Vdc Input Overvoltage Lockout (Adjustable via PMBus) Turn-off Threshold [VIN_OV_FAULT_LIMIT] 85 V   dc Turn-on Threshold 79 V   dc (follows VIN_OV_FAULT_LIMIT -7V) Pull down resistance of Power Good pin All 150 Ω Sink current capability into Power Good pin (V =2.2V) All 15 mA PG March 18, 2016 ©2016 General Electric Company. All rights reserved. Page 4 Data Sheet GE EBDW020A0B Barracuda Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 20.0A, 240W Output General Specifications Parameter Device Symbol Typ Unit Calculated Reliability Based upon Telcordia SR-332 Issue All MTBF 4,169,213 Hours 2: Method I, Case 3, (IO=80%IO, max, TA=40°C, Airflow = 200 9 All FIT 239.9 10 /Hours LFM), 90% confidence Weight – Open Frame 30.0 (1.06) g (oz.) Weight – with Base plate option 39.5 (1.39) g (oz.) 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) I -10 10 μA IH Input low level current (CLK, DATA) I -10 10 μA IL Output Low Voltage (CLK, DATA, SMBALERT#) I=2mA VOL 0.4 V OUT Output high level open drain leakage current (DATA, VOUT=3.6V IOH 0 10 μA SMBALERT#) Pin capacitance CO 0.7 pF PMBus Operating frequency range PMB 5* 400 kHz (* 5-10 kHz to accommodate hosts not supporting clock Slave Mode F stretching) Measurement System Characteristics Output current reading range IOUT(RNG) 0.56 63.9375 A Output current reading resolution IOUT(RES) 0.19 A Output current reading accuracy 5A < Iout <20A IOUT(ACC) -5.0 4.0 % Output current reading accuracy (absolute difference 0.56A < Iout <5A IOUT(ACC) -1.4 2.7 A between actual and reported values) VOUT reading range VOUT(RNG) 0 15.9997 V V reading resolution V 0.244 mV OUT OUT(RES) V reading accuracy V -2.0 0.6 2.0 % OUT OUT(ACC) VIN reading range VIN(RNG) 0 127.875 V VIN reading resolution VIN(RES) 125 mV VIN reading accuracy VIN(ACC) -4.0 0.8 4.0 % Temperature reading resolution T 0.25 °C (RES) Temperature reading accuracy T -5.0 5.0 % (ACC) March 18, 2016 ©2016 General Electric Company. All rights reserved. Page 5 Data Sheet GE EBDW020A0B Barracuda Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 20.0A, 240W Output Characteristic Curves The following figures provide typical characteristics for the EBDW020A0B (12V, 20A) at 25ºC. The figures are identical for either positive or negative Remote On/Off logic. INPUT VOLTAGE, VO (V) OUTPUT CURRENT, IO (A) Figure 1. Typical Input Characteristic at Room Temperature. Figure 2. Typical Converter Efficiency Vs. Output current at Room Temperature. TIME, t (20 ms/div) TIME, t (40 ms/div) Figure 3. Typical Start-Up Using Remote On/Off with Vin Figure 4. Typical Start-Up Using Vin with Remote On/Off applied, negative logic version shown. enabled, negative logic version shown. TIME, t (1 ms/div) TIME, t (1 ms/div) Figure 5. Typical Transient Response to Step Change in Load Figure 6. Typical Transient Response to Step Change in Load from 25% to 50% to 25% of Full Load at 48Vdc Input and C = from 50% to 75% to 50% of Full Load at 48Vdc Input and O 470uF Polymer, without -02 option. C = 470uF Polymer, without -02 option. O March 18, 2016 ©2016 General Electric Company. All rights reserved. Page 6 OUTPUT CURRENT OUTPUT VOLTAGE OUTPUT VOLTAGE On/Off VOLTAGE INPUT CURRENT, Ii (A) IO (A) (5A/div) VO (V) (500mV/div) VO (V) (5V/div) VON/OFF (V) (2V/div) OUTPUT CURRENT OUTPUT VOLTAGE OUTPUT VOLTAGE INPUT VOLTAGE EFFCIENCY, η (%) IO (A) (5A/div) VO (V) (500mV/div) VO (V) (5V/div) VIN(V) (20V/div) Data Sheet GE EBDW020A0B Barracuda Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 20.0A, 240W Output Characteristic Curves (continued) The following figures provide typical characteristics for the EBDW020A0B (12V, 20A) at 25ºC. The figures are identical for either positive or negative Remote On/Off logic. INPUT VOLTAGE, Vin (V) INPUT VOLTAGE, Vin (V) Figure 7. Typical Output Voltage Regulation vs. Input Figure 8. Typical Output Voltage Regulation vs. Input Voltage Voltage at Room Temperature. for the –P Version at Room Temperature. 36 Vin 48 Vin 75 Vin OUTPUT CURRENT, IO (A) TIME, t (2s/div) Figure 9. Typical Output Voltage Regulation vs. Output Figure 10. Typical Output Ripple and Noise at Room Current for the –P Version at Room Temperature. Temperature Io = Io,max and and COMin. TIME, t (1 ms/div) TIME, t (1 ms/div) Figure 11. Typical Transient Response to Step Change in Figure 12. Typical Transient Response to Step Change in Load from 25% to 50% to 25% of Full Load at 48Vdc Input Load from 50% to 75% to 50% of Full Load at 48Vdc Input and CO= 220uF Polymer, with -02 option. and CO= 220uF Polymer, with -02 option. March 18, 2016 ©2016 General Electric Company. All rights reserved. Page 7 OUTPUT CURRENT OUTPUT VOLTAGE OUTPUT VOLTAGE, VO (V) I (A) (10A/div) V (V) (200mV/div) OUTPUT VOLTAGE, VO (V) O O OUTPUT CURRENT OUTPUT VOLTAGE OUTPUT VOLTAGE, OUTPUT VOLTAGE, VO (V) I (A) (10A/div) V (V) (200mV/div) V (V) (50mV/div) O O O Data Sheet GE EBDW020A0B Barracuda Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 20.0A, 240W 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 13, 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 13. 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 14. 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 15. Output Voltage and Efficiency Test Setup. March 18, 2016 ©2016 General Electric Company. All rights reserved. Page 8 Data Sheet GE EBDW020A0B Barracuda Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 20.0A, 240W Output The EBDW020A0B 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 EBDW020A0B 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 16). A logic LO is V = -0.3V to 0.8V. on/off Table, the module will shut down. The EBDW020A0B 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 16. 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 EBDW020A0B Barracuda Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 20.0A, 240W Output Feature Descriptions (continued) Load Sharing For higher power requirements, the EBDW020A0 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 17. 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 Remote On/Off(o) sharing and operating temperature balance.  V must remain between 40V and 75V for droop sharing IN dc dc The module contains an additional remote on/off control input to be functional. On/Off(o), via either the T/C1 or C2 pin, reference to the  It is permissible to use a common Remote On/Off signal to SIG_GND pin. The factory default configuration is set to ignore start all modules in parallel. this input, unless activated by the PMBus command,  These modules contain means to block reverse current flow MFR_CPIN_ON_OFF_CONFIG. This command is also used to upon start-up, when output voltage is present from other configure the logic for the On/Off(o) pin. Positive logic remote parallel modules, thus eliminating the requirement for on/off turns the module on during a logic HI voltage on the external output ORing devices. Modules with the –P option ON/OFF pin, and off during a logic LO. Negative logic remote will self-determine the presence of voltage on the output on/off turns the module off during a logic HI, and on during a from other operating modules, and automatically increase its logic LO. The On/Off(o) circuit is powered from an internal bias Turn On delay, T , as specified in the Feature Specifications delay supply, referenced to SIG_GND. To turn the power module on Table. and off, the user must supply a switch to control the voltage  When parallel modules startup into a pre-biased output, e.g. between the On/Off (o) terminal and the SIG_GND pin (V (o)). on/off partially discharged output capacitance, the T is rise The switch can be an open collector or equivalent (see Figure automatically increased, as specified in the Feature 14). A logic LO is Von/off(o) = -0.3V to 0.8V. The typical Ion/off(o) Specifications Table, to insure graceful startup. during a logic low is 330µA. The switch should maintain a logic  Insure that the load is <50% IO,MAX (for a single module) until LO voltage while sinking 250µA. During a logic HI, the all parallel modules have started (load full start > module maximum Von/off(o) generated by the power module is 3.3V. The Tdelay time max + Trise time). maximum allowable leakage current of the switch at Von/off(o) =  If fault tolerance is desired in parallel applications, output 2.0V is 130µA. If using an external voltage source, the ORing devices should be used to prevent a single module maximum voltage V on the pin is 3.3V with respect to the on/off failure from collapsing the load bus. V (-) terminal. i If not using the Remote On/Off(o) feature, the pin may be left Remote Sense N/C. Remote sense minimizes the effects of distribution losses by regulating the voltage at the remote-sense connections (See Figure 17). The SENSE(-) pin should be always connected to V (–).The voltage between the remote-sense pins and the O output terminals must not exceed the output voltage sense range given in the Feature Specifications table: [V (+) – V (–)] – [SENSE(+) ]  0.5 V O O Although the output voltage can be increased by both the remote sense and by the trim, the maximum increase for the output voltage is not the sum of both. The maximum increase is the larger of either the remote sense or the trim. The amount of power delivered by the module is defined as the voltage at the output terminals multiplied by the output current. When using remote sense and trim, the output voltage of the module can be increased, which at the same output current, would 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 EBDW020A0B Barracuda Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 20.0A, 240W Output 511   Feature Descriptions (continued) R  10.22  trimdown   20   Power Good, PG R  15.3k The EBDW020A0B 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  POWER_GOOD_OFF value. trimup   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, R is calculated is as follows: trim-up Negative Logic PG, the PG signal is LO, when PG is asserted, and HI, when the PG is de-asserted.  %  5  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 Trimming allows the output voltage set point to be increased shown in the Feature Specifications table. This limit includes or decreased; this is accomplished by connecting an external any increase in voltage due to remote-sense compensation resistor between the TRIM pin and either the V (+) pin or the O and output voltage set-point adjustment trim. V (-) pin. Although the output voltage can be increased by both the O 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 trim-up of power delivered by the module is defined as the voltage at 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 EBDW020A0B 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 = V x I ). O,set O,max V (-) O Thermal Considerations Figure 18. 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 (Rtrim-down) between the T/C1 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  measurements taken in a wind tunnel, using automated R   10 .22  trimdown    %   thermo-couple instrumentation to monitor key component temperatures: FETs, diodes, control ICs, magnetic cores, Where  12 .0V V  desired  %   100 ceramic capacitors, opto-isolators, and module pwb 12 .0V   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 20A0B Ba arracuda a Series; DC-DC C Converte er Power r Module es 3 36-75Vdc Input; 12.0V Vdc, 20.0A, , 240W 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 aspects includ ding 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 21-23 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 21 is shown in t the following e example: Exam mple Wha at is the minimu um airflow nec cessary for a EB BDW020A0B oper rating at V = 48 8 V, an output current of 15A, and a I max ximum ambient t temperature of 60 °C in tran nsverse orien ntation. Solution: Velo ocity = 0.5m/s (1 100 LFM) or gre eater. Give en: Vin= 48V, IO = = 14A, TA = 60 ° °C Dete ermine required d airflow velocity (Use Figure 21): Velo ocity = 0.5m/s (1 100 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 temperatu ure (T TH or TH ). Pea ak temperature e occurs at the e position indicated 1 2 in n Figure 19 and d 20. For reliab ble operation th his temperatur re s should not exce eed TH =125°C C or TH =105°C C. For extremely y 1 2 h high reliability y you can limit th his temperature e to a lower va alue. LOC CAL AMBIENT T TEMPERATURE, TA (C) Fig gure 21. Outpu ut Current Der rating for the O Open Frame EB BDW020A0B in n the Transverse Orientation n; Airflow Direction from V Vin(-) to Vin(+); Vin = 48V. F Figure 19. Location of the thermal reference e temperature T TH. D Do not exceed 113 °C. F Figure 20. Loca ation of the the ermal reference temperatur re T TH3 for Baseplate module. D Do not exceed 110 °C. T The output pow wer of the module should not exceed the rat ted LOC CAL AMBIENT T TEMPERATURE,, T (C) A p power for the m module as listed d in the Orderin ng Information n Fig gure 22. Outpu ut Current Der rating for the Base Plate ta able. EB BDW020A0Bxx x-H in the Tran nsverse Orientation; Airflow Direction from V Vin(-) to Vin(+); ; Vin = 48V. M March 18, 2016 ©2 2016 General Ele ectric Company. A All rights reserve ed. Page 12 2 O OUTP UTPUT UT CU CURRE RRENT NT, I IO O (A) (A) O OUTP UTPUT UT CU CURRE RRENT NT, I IO O (A) (A) Data Sh heet G GE E EBDW02 20A0B Ba arracuda a Series; DC-DC C Converte er Power r Module es 3 36-75Vdc Input; 12.0V Vdc, 20.0A, , 240W Out tput Max. sustain tempe erature : T Thermal Co onsideratio ons (continued) 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. C (Mois sture/Reflow S Sensitivity Class sification for LOCAL AMBIEN NT TEMPERATU URE, TA (C) Nonhermetic Solid State Surface Mount Devices s) for both Pb- F Figure 23. Outp put Current De erating for the e Base Plate free solder profiles and MSL class sification E EBDW020A0Bx xx-H and 0.25” heat sink in t the Transverse e proc cedures. BMP w will comply wit th JEDEC J-STD D-020C O Orientation; Airflow Direction from Vin(-) to Vin(+); Vin = 48V. spec cification for 3 times reflow re equirement. Th he suggested Pb-free solder past te is Sn/Ag/Cu (SAC). The recommended L Layout Con nsideration ns linea ar reflow profile e using Sn/Ag/Cu solder is shown in Figure T The EBDW020A A0B power mod dule series are low profile in o order 24. 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 m module and the e mounting board is limited. Avoid placing Peak Temp p. 240 -245°C c copper areas on the outer lay yer directly und derneath the po ower m module. Also avoid placing via interconnect ts underneath the Ramp down max. 4°C/Sec p power module. 217°C F For additional la ayout guide-lin nes, refer to FLT T007A0Z Data 200°C Time Limited 90 S Sec. S Sheet. above 217°C 150°C T Through-Hole Lead-F Free Soldering Preheat time 100-150 Sec. Information n Ram mp up T The RoHS-comp pliant, Z version, through-hole products use e the max. 3 3°C/Sec S SAC (Sn/Ag/Cu) Pb-free solder r and RoHS-com mpliant 25°C c components. Th he non-Z versio on products us se lead-tin (Pb/ /Sn) Time e s solder and RoH HS-compliant co omponents. Bo oth version Figu ure 24. Recomm mended linear r reflow profile e using m modules are de esigned to be p processed through single or d dual Sn/A Ag/Cu solder. w wave soldering machines. Th he pins have an n RoHS-complia ant, Sur rface Moun nt Informat tion 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 s suggested. The e wave preheat t process shou uld be such tha at the The recommended d storage envir ronment and handling te emperature of f the power mo odule board is k kept below 210 0C. proc cedures for mo oisture-sensitive e surface mount packages is s F For Pb solder, th he recommend ded pot temperature is 260C C, deta ailed in J-STD-0 033 Rev. A (Han ndling, Packing, Shipping and w while the Pb-fre ee solder pot is s 270C max. N Not all RoHS- Use of Moisture/Re eflow Sensitive Surface Moun nt Devices). c compliant throu ugh-hole produ ucts can be pro ocessed with Mois sture barrier ba ags (MBB) with desiccant are provided for p paste-through- -hole Pb or Pb-free reflow pro ocess. If additio onal the E EBDW020A0Bx xx-SZ modules.. These sealed packages in nformation is n needed, please e consult with y your GE shou uld not be brok ken until time o of use. Once th he original representative for more details. pack kage is broken, the floor life o of the product a at conditions o of  30 0°C and 60% re elative humidity y varies accord ding to the MSL L R Reflow Lead-Free Sold dering Info ormation ratin ng (see J-STD-0 033A). The shelf life for dry pa acked SMT pack kages is a minimum of 12 mo onths from the bag seal date,, T The RoHS-comp pliant through- -hole products s can be proces ssed when stored at the e following con nditions: < 40° C, < 90% w with the following paste-throu ugh-hole Pb or r Pb-free reflow w p process. relat tive humidity. M March 18, 2016 ©2 2016 General Ele ectric Company. A All rights reserve ed. Page 13 3 OUTPUT CURRENT, I (A) O Temp Data Sh heet G GE E EBDW02 20A0B Ba arracuda a Series; DC-DC C Converte er Power r Module es 3 36-75Vdc Input; 12.0V Vdc, 20.0A, , 240W Out tput P Pick and Place T The EBDW020A A0B modules us se an open frame constructio on a and are designe ed for a fully automated asse embly process.. The m modules are fitt ted with a labe el designed to p provide a large e s surface area fo or pick and plac ce operations. The label mee ets all the requiremen nts for surface mount process sing, as well as s s safety standard ds, and is able t to withstand re eflow temperatures o o of up to 300 C. The label also o carries produc ct information such a as product code, serial numbe er and the loca ation of m manufacture. F Figure 25. Pick k and Place Location. N Nozzle Recom mmendations s T The module we eight has been kept to a minim mum by using open frame construc ction. Even so, these modules s have a relativ vely la arge mass whe en compared to conventional SMT components. V Variables such as nozzle size, tip style, vacuu um pressure and p placement spee ed should be considered to o optimize this p process. The m minimum recom mmended nozz zle diameter for r reliable operation is 6mm. The e maximum no ozzle outer d diameter, which h will safely fit within the allow wable compon nent s spacing, is 9 mm m. O Oblong or oval nozzles up to 1 11 x 9 mm may y also be used w within the spac ce available. M MSL Rating T The EBDW020A A0B modules ha ave a MSL ratin ng as indicated d in the Device Codes table, last page of this doc cument. P Post Solder r Cleaning and Drying g C Considerat tions P Post solder clea aning is usually y the final circu uit-board assem mbly p process prior to o electrical boa ard testing. The e result of in nadequate clea aning and drying can affect b both the reliability o of a power mod dule and the te estability of the e finished c circuit-board as ssembly. For guidance on appropriate solde ering, c cleaning and dr rying procedur res, refer to GE Board Mounte ed P Power Modules s: Soldering and d Cleaning Application Note (A AP01-056EPS). M March 18, 2016 ©2 2016 General Ele ectric Company. A All rights reserve ed. Page 14 4 Data Sheet GE EBDW020A0B Barracuda Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 20.0A, 240W Output EMC Considerations The circuit and plots in Figure 26 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 FLT007A0Z data sheet. Level [dBµV] 80 70 60 x+ 50 + x + x 40 30 xxx 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 26. EMC Considerations. March 18, 2016 ©2016 General Electric Company. All rights reserved. Page 15 Data Sheet GE EBDW020A0B Barracuda Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 20.0A, 240W Output Packaging Details All versions of the EBDW020A0B are supplied as standard in the plastic trays shown in Figure 27. The trays are self- stacking and each shipping box for the EBDW020A0B module contains 2 or 3 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/Through Hole Pin Tray; 12 power modules/SMT Pin Tray Min order quantity Through Hole Pin: 36pcs (1 box of 2 full trays + 1 empty top tray) SMT Pin: 36pcs (1 box of 3 full trays + 1 empty top tray) SMT Pin Tray Open Frame Through Hole Pin Module Tray Base Plate Through Hole Pin Module Tray Figure 27. EBDW020 Packaging Tray March 18, 2016 ©2016 General Electric Company. All rights reserved. Page 16 Data Sheet GE EBDW020A0B Barracuda Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 20.0A, 240W Output active SMBALERT. However, when the EBDW020A0B module Digital Feature Descriptions is used in systems that do support ARA, Bit 4 of the PMBus Interface Capability MFR_CPIN_ARA_CONFIG command can be used to reconfigure the module to utilize ARA. In this case, the The EBDW020A0B series is equipped with a digital PMBus EBDW020A0B will no longer respond to its programmed interface to allow the module to be configured, and address, when in an ALERT active state. The master is communicate with system controllers. Detailed timing and expected to perform the modified received byte operation, electrical characteristics of the PMBus can be found in the and retire the ALERT active signal. At this time, the PMB Power Management Protocol Specification, Part 1, EBDW020A0B will return to it’s resistor programmed address, revision 1.2, available at http://pmbus.org. The EBDW020A0B allowing normal master-slave communications to proceed. supports both the 100kHz and 400kHz bus timing The EBDW020A0B does not contain capability to arbitrate requirements. The EBDW020A0B shall stretch the clock, as data bus contention caused by multiple modules responding long as it does not exceed the maximum clock LO period of to the modified received byte operation. Therefore, when the 20ms. The EBDW020A0B will check the Packet Error Checking ARA is used in a multiple module PMBus application, it is scheme (PEC) byte, if provided by the PMBus master, and necessary to have the EBDW020A0B module at the lowest include a PEC byte in all responses to the master. However, programmed address in order for the host to properly the EBDW020A0B does not require a PEC byte from the determine all modules’ address that are associated with an PMBus master. active SMBAlert. Please contact your GE sales representative for further assistance, and for more information on the The EBDW020A0B supports a subset of the commands in the SMBus alert response protocol, see the System Management PMBus 1.2 specification. Most all of the controller Bus (SMBus) specification. parameters can be programmed using the PMBus and stored as defaults for later use. All commands that require data PMBus Addressing input or output use the linear format. The exponent of the The power module can be addressed through the PMBus data words is fixed at a reasonable value for the command using a device address. The module has 64 possible and altering the exponent is not supported. Direct format addresses (0 to 63 in decimal) which can be set using data input or output is not supported by the EBDW020A0B. resistors connected from the ADDR0 and ADDR1 pins to GND. The supported commands are described in greater detail Note that some of these addresses (0 through 12, 40, 44, 45, below. and 55 in decimal) are reserved according to the SMBus specifications and may not be useable. The address is set in The EBDW020A0B contains non-volatile memory that is used the form of two octal (0 to 7) digits, with each pin setting one to store configuration settings and scale factors. The digit. The ADDR1 pin sets the high order digit and ADDR0 sets settings programmed into the device are not automatically the low order digit. The resistor values suggested for each saved into this non-volatile memory though. The digit are shown in Table 4 (1% tolerance resistors are STORE_DEFAULT_ALL command must be used to commit the recommended). current settings to non-volatile memory as device defaults. Table 4 The settings that are capable of being stored in non-volatile Digit Resistor Value (KΩ) memory are noted in their detailed descriptions. 0 10 SMBALERT Interface Capability 1 15.4 The EBDW020A0B also supports the SMBALERT response 2 23.7 protocol. The SMBALERT response protocol is a mechanism 3 36.5 through which the EBDW020A0B 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 receive byte operation to get the slave’s address. At this ADDR0 point, the master can use the PMBus status commands to R R query the slave that caused the alert. Note: The ADDR0 ADDR1 EBDW020A0B can only respond to a single address at any given time. Therefore, the factory default state for the SIG_GND EBDW020A0B module is to retain it’s resistor programmed address, when it is in an ALERT active condition, and not Figure 28. 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 EBDW020A0B 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. March 18, 2016 ©2016 General Electric Company. All rights reserved. Page 17 Data Sheet GE EBDW020A0B Barracuda Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 20.0A, 240W Output Both 100kHz and 400kHz bus speeds are supported by the PU: Factory set to 1. EBDW025A0B requires On/Off(i) pin to module. Connection for the PMBus interface should follow be connected to proper input rail for module to power up. the High Power DC specifications given in section 3.1.3 in the This bit is used together with the CMD, CPR and ON bits to SMBus specification V2.0 for the 400kHz bus speed or the determine startup. Low Power DC specifications in section 3.1.2. The complete Bit Value Action SMBus specification is available from the SMBus web site, Module does not power up until commanded smbus.org. by the analog ON/OFF pin and the OPERATION 1 command as programmed in bits [2:0] of the PMBus Data Format ON_OFF_CONFIG register. For commands that set or report any voltage thresholds CMD: The CMD bit controls how the device responds to the related to output voltage (including VOUT_COMMAND, OPERATION command. VOUT_MARGIN, POWER_GOOD and READ_VOUT), the module Bit Value Action supports the linear data format consisting of a two byte Module ignores the ON bit in the OPERATION value with a 16-bit, unsigned mantissa, and a fixed exponent 0 command of -12. The format of the two data bytes is shown below: 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. Bit Value Action The value of the number is then given by Module requires the analog ON/OFF pin to be 1 -12 asserted to start the unit Value = Mantissa x 2 For commands that set all other thresholds, voltages or PMBus Adjustable Input Undervoltage Lockout report such quantities, the module supports the linear data The module allows adjustment of the input under voltage format consisting of a two byte value with an 11-bit, two’s lockout and hysteresis. The command VIN_ON allows setting complement mantissa and a 5-bit, two’s complement the input voltage turn on threshold, while the VIN_OFF exponent. The format of the two data bytes is shown below: 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 th Value = Mantissa x 2 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 PMBus Adjustable Soft Start Delay and Rise Time the module on and off via the PMBus, while the 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 March 18, 2016 ©2016 General Electric Company. All rights reserved. Page 18 Data Sheet GE EBDW020A0B Barracuda Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 20.0A, 240W Output bits are used for two’s complement representation of the data in the linear format. The upper five bits [7:3] of the high 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 EBDW020A0B 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 120mV. 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 V (Read) IN command. [V (A/D)(MFR_VIN_READ _CAL_GAIN/8192 )] IN Output Voltage Margining Using the PMBus MFR_VIN_READ _CAL_OFFSET The EBDW020A0B module can also have its output voltage margined via PMBus commands. The command Measuring Output Current Using the PMBus VOUT_MARGIN_HIGH sets the margin high voltage, while the The module measures output current by using the output command VOUT_MARGIN_LOW sets the margin low voltage. filter inductor winding resistance as a current sense element. Both the VOUT_MARGIN_HIGH and VOUT_MARGIN_LOW The module can provide output current information using the commands use the “Linear” mode with the exponent fixed at READ_IOUT command. The command returns two bytes of –12 (decimal). The data associated with VOUT_MARGIN_HIGH data in the linear format. The upper five bits [7:3] of the high and VOUT_MARGIN_LOW can be stored to non-volatile data byte form the two’s complement representation of the memory using the STORE_DEFAULT_ALL command. exponent, which is fixed at –4 (decimal). The remaining 11 The module is commanded to go to the margined high or low bits are used for two’s complement representation of the th voltages using the OPERATION command. Bits [5:2] are used mantissa, with the 11 bit fixed at zero since only positive to enable margining as follows: numbers are valid. 00XX : Margin Off During module manufacture, offset and gain correction 0110 : Margin Low (Act on Fault) values are written into the non-volatile memory of the 1010 : Margin High (Act on Fault) module to null errors in the tolerance and A/D conversion of Measuring Output Voltage Using the PMBus I . The command MFR_IOUT_CAL_OFFSET can be used to OUT read the offset - two bytes consisting of a five-bit exponent The module can provide output voltage information using (fixed at -4) and a 11-bit mantissa in two’s complement the READ_VOUT command. The command returns two bytes format. The resolution is 0.19A. The command of data in the linear format, with the 16 bits of the MFR_IOUT_CAL_GAIN can be used to read the gain READ_VOUT formatted as an unsigned mantissa, and a fixed correction - two bytes consisting of a unsigned 16 bit exponent of -12 (decimal). number. The resolution of this correction factor 0.000122. The READ_IOUT command provides module average output During module manufacture, an offset correction value is current information. This command only supports positive written into the non-volatile memory of the module to null current sourced from the module. If the converter is sinking errors in the tolerance and A/D conversion of VOUT. The current a reading of 0 is provided. command MFR_VOUT_READ_CAL_OFFSET can be used to I (Read) read the offset - two bytes consisting of a signed 16-bit OUT mantissa in two’s complement format, using a fixed [I (A/D) (MFR _IOUT _CAL _GAIN / 8192)] OUT exponent of -12 (decimal). The resolution is 0.244mV. The MFR _IOUT _CAL _OFFSET corrected Output voltage reading is then given by: Note that the current reading provided by the module is V (Read)[V (A/D) OUT OUT corrected for temperature. MFR_VOUT_READ_CAL_OFFSET Measuring Input Voltage Using the PMBus The module can provide input voltage information using the READ_VIN command. The command returns two bytes of March 18, 2016 ©2016 General Electric Company. All rights reserved. Page 19 Data Sheet GE EBDW020A0B Barracuda Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 20.0A, 240W Output Measuring the Temperature using the PMBus STATUS_IOUT : Returns one byte of information relating to The module can provide temperature information using the the status of the module’s output current related faults. READ_TEMPERATURE_1 command. The command returns Bit Position Flag Default Value two bytes of data in the linear format. The upper five bits 7 IOUT OC Fault 0 [7:3] of the high data byte form the two’s complement 6 X 0 representation of the exponent, which is fixed at –2 (decimal). 5 IOUT OC Warning 0 The remaining 11 bits are used for two’s complement 4 X 0 representation of the mantissa. 3 X 0 Note that the module’s temperature sensor is located close 2 X 0 to the module hot spot TH1 (see Thermal Considerations).and 1 X 0 is subjected to temperatures higher than the ambient air 0 X 0 temperature near the module. The temperature reading will be highly influenced by module load and airflow conditions. STATUS_INPUT : Returns one byte of information relating to the status of the module’s input voltage related faults. Reading the Status of the Module using the PMBus Bit Position Flag Default Value The module supports a number of status information 7 VIN OV Fault 0 commands implemented in PMBus. However, not all features 6 X 0 are supported in these commands. A X in the FLAG cell 5 X 0 indicates the bit is not supported. 4 VIN UV Fault 0 3 Module Off (Low VIN) 0 STATUS_WORD : Returns two bytes of information with a 2 X 0 summary of the module’s fault/warning conditions. 1 X 0 High Byte 0 X 0 Bit Position Flag Default Value 15 VOUT fault 0 STATUS_TEMPERATURE : Returns one byte of information 14 IOUT fault or warning 0 relating to the status of the module’s temperature related 13 Input Voltage fault 0 faults. 12 X 0 Bit Position Flag Default Value 11 POWER_GOOD# (is negated) 0 7 OT Fault 0 10 X 0 6 OT Warning 0 9 X 0 5 X 0 8 X 0 4X 0 Low Byte 3 X 0 Bit Position Flag Default Value 2 X 0 7 X 0 1 X 0 6 OFF 0 0 X 0 5 VOUT Overvoltage 0 4 IOUT Overcurrent 0 STATUS_CML : Returns one byte of information relating to the 3 VIN Undervoltage 0 status of the module’s communication related faults. 2 Temperature 0 Bit Position Flag Default Value 1 CML (Comm. Memory Fault) 0 Invalid/Unsupported 7 0 0 X 0 Command 6 Invalid/Unsupported Data 0 STATUS_VOUT : Returns one byte of information relating to 5 Packet Error Check Failed 0 the status of the module’s output voltage related faults. 4 X 0 Bit Position Flag Default Value 3 X 0 7 VOUT OV Fault 0 2 X 0 6 X 0 1 X 0 5 X 0 0 X 0 4 X 0 3 X 0 2 X 0 1 X 0 0 X 0 March 18, 2016 ©2016 General Electric Company. All rights reserved. Page 20 Data Sheet GE EBDW020A0B Barracuda Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 20.0A, 240W Output Summary of Supported PMBus Commands This section outlines the PMBus command support for the EBDW020A0B 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. RESTORE_DEFAULT_ALL[0x12] Command support: All functionality – Restores operating parameters from EEprom memory. 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 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 21 Data Sheet GE EBDW020A0B Barracuda Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 20.0A, 240W 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 22 Data Sheet GE EBDW020A0B Barracuda Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 20.0A, 240W Output IOUT_OC_FAULT_LIMIT [0x46] Range limits (max/min): 41.5/20 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): 30.3/7.6 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 23 Data Sheet GE EBDW020A0B Barracuda Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 20.0A, 240W 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 24 Data Sheet GE EBDW020A0B Barracuda Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 20.0A, 240W 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 25 Data Sheet GE EBDW020A0B Barracuda Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 20.0A, 240W 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 1 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 26 Data Sheet GE EBDW020A0B Barracuda Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 20.0A, 240W 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 27 Data Sheet GE EBDW020A0B Barracuda Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 20.0A, 240W 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 28 Data Sheet GE EBDW020A0B Barracuda Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 20.0A, 240W Output Barracuda PMBus Command Quick Reference Table CMD DATA DATA TRANSFER PMBUS CMD DATA FORMAT DEFAULT VALUE CODE BYTES UNITS TYPE 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 23.000A (w/o -02 option) IOUT_OC_FAULT_LIMIT 0x46 2 IOUT linear Amps R/W word 28.000A (w -02 option) 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 21.000A 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 0x008E 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 29 Data Sh heet G GE E EBDW02 20A0B Ba arracuda a Series; DC-DC C Converte er Power r Module es 3 36-75Vdc Input; 12.0V Vdc, 20.0A, , 240W Out tput M Mechanical Outline fo or EBDW02 20A0B 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  0.25mm 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 le engths, see Tab ble 2, Device Co oding Scheme 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 30 0 Data Sh heet G GE E EBDW02 20A0B Ba arracuda a Series; DC-DC C Converte er Power r Module es 3 36-75Vdc Input; 12.0V Vdc, 20.0A, , 240W Out tput M Mechanical Outline fo or EBDW02 20A0Bxx-S SMT 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  0.25mm 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 Bottom Vie ew 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 Isometric V View Bottom Side (Components removed f for clarity) M March 18, 2016 ©2 2016 General Ele ectric Company. A All rights reserve ed. Page 31 1 Data Sh heet G GE E EBDW02 20A0B Ba arracuda a Series; DC-DC C Converte er Power r Module es 3 36-75Vdc Input; 12.0V Vdc, 20.0A, , 240W Out tput M Mechanical Outline fo or EBDW02 20A0B–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. * *For optional piin lengths, see Table 2, Device Coding Scheme and Option ns Side View* * ***Bottom lab bel includes GE name, produc ct designation, and data code e Bottom View*** 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 32 2 Data Sheet GE EBDW020A0B Barracuda Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 20.0A, 240W 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  0.25mm [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] SMT 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 March 18, 2016 ©2016 General Electric Company. All rights reserved. Page 33 Data Sheet GE EBDW020A0B Barracuda Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 20.0A, 240W 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 EBDW020A0B41Z 48V (3675Vdc) 12V 20A 94.8% Through hole 2a CC109167482 EBDW020A0B641Z 48V (3675Vdc) 12V 20A 94.8% Through hole 2a 150046402 EBDW020A0B41-HZ 48V (3675Vdc) 12V 20A 94.8% Through hole 2a CC109167490 2a EBDW020A0B641-HZ 48V (3675Vdc) 12V 20A 94.8% Through hole 150023769 EBDW020A0B841-HZ 12V 20A 94.8% Through hole 2a 150029356 48V (3675Vdc) EBDW020A0B641-02HZ 12V 20A 94.8% Through hole 2a 150027293 48V (3675Vdc) EBDW020A0B841-02HZ 48V (3675Vdc) 12V 20A 94.8% Through hole 2a 150035275 EBDW020A0B641-PHZ 48V (3675Vdc) 12V 20A 94.8% Through hole 2a CC109170552 2a EBDW020A0B41-SZ 48V (3675Vdc) 12V 20A 94.8% SMT 150048139 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 1.30