Data Sheet GE EBVW025A0B Barracuda* Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output Features  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 12V , 40% load to dc 80% output  Wide Input voltage range: 36-75V dc  Delivers up to 25Adc output current  Output Voltage adjust: 6.0Vdc to 13.2Vdc  Tightly regulated output voltage  Low output ripple and noise  No reverse current during prebias start-up or shut-down  Industry standard, DOSA compliant, Eight brick: 58.4 mm x 22.8 mm x 11.3 mm (2.30 in x 0.90 in x 0.44 in)  Constant switching frequency Applications  Positive Remote On/Off logic  Distributed power architectures  Output over current/voltage protection  Intermediate bus voltage applications  Over temperature protection  Servers and storage applications  Wide operating temperature range (-40°C to 85°C) †  Networking equipment including Power over Ethernet  CAN/CSA C22.2 No. 60950-1-07, 2nd Edition + A1:2011 (MOD), # (PoE) ANSI/UL 60950-1-2011, IEC 60950-1 (2nd edition); am1, and ‡ nd VDE (EN60950-1, 2 Ed.) Licensed  Fan assemblies other systems requiring a tightly §  CE mark 2006/96/EC directives regulated output voltage  Meets the voltage and current requirements for ETSI 300- Options 132-2 and complies with and licensed for Basic insulation rating per EN60950-1  Negative Remote On/Off logic (1=option code, factory  2250 Vdc Isolation tested in compliance with IEEE 802.3¤ PoE preferred) standards  Auto-restart after fault shutdown (4=option code,  ISO** 9001 and ISO14001 certified manufacturing facilities factory preferred)  Remote Sense and Output Voltage Trim (9=option code)  Base plate option (-H=option code)  Passive Droop Load Sharing (-P=option code) Description The EBVW025A0B BARRACUDA series of dc-dc converters are a new generation of DC/DC power modules designed to support 9.6 -12Vdc intermediate bus applications where multiple low voltages are subsequently generated using point of load (POL) converters, as well as other application requiring a tightly regulated output voltage. The EBVW025A0B series operate from an input voltage range of 36 to 75V , and provide up to 25A output current at output voltages from 6.0V to 12.0V , and 300W output power from dc dc dc output voltages of 12.1V to 13.2V in a DOSA standard eighth brick. The converter incorporates digital control, synchronous dc dc rectification technology, and innovative packaging techniques to achieve efficiency reaching 95.4% peak at 12V output. This dc leads to lower power dissipations such that for many applications a heat sink is not required. Standard features include on/off control, output overcurrent and over voltage protection, over temperature protection, input under and over voltage lockout. Optional features include output voltage remote sense and trim from 6.0Vdc to 13.2Vdc, passive droop paralleling, and base plate for heat sink or cold wall applications. 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 # 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. October 17, 2016 ©2016 General Electric Company. All rights reserved. Page 1 Data Sheet GE EBVW025A0B 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, 50VIN to 75VIN (Output may exceed regulation limits, no protective shutdowns - - 10 V/µs 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) 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 - - 9 A IN,max dc (VIN=0V to 75V, IO=IO, max) Input No Load Current All IIN,No load 50 mA (VIN = VIN, nom, IO = 0, module enabled) Input Stand-by Current All IIN,stand-by 25 mA (V = V , module disabled) IN IN, nom 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 - mArms and input capacitance CIN=220uF, 5Hz to 20MHz, VIN= 48V, IO= I ) Omax 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. October 17, 2016 ©2016 General Electric Company. All rights reserved. Page 2 Data Sheet GE EBVW025A0B 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 All VO, set 11.97 12.00 12.03 Vdc (V =V , I =12.5A, T =25°C) IN IN,nom O A Output Voltage All w/o -P VO 11.76  12.24 Vdc (Over all operating input voltage(40V to 75V), resistive load, and -P Option VO 11.60  12.40 Vdc temperature conditions until end of life) Output Voltage (VIN=36V, TA = 25ºC) All VO 10.8   Vdc 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 (I =I to I ) All w/o -P  0.2  O O, min O, max % VO, set Line (VIN=VIN, min to VIN, max) -P Option  0.5  % VO, set Load (IO=IO, min to IO, max), Intentional Droop -P Option 0.50 Vdc 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, tested with a 1.0 μF ceramic, 10 μF aluminum and 220μF polymer capacitor across the load.) RMS (5Hz to 20MHz bandwidth) All  70  mVrms Peak-to-Peak (5Hz to 20MHz bandwidth) All  200  mVpk-pk External Output Capacitance All CO 220  10,000 μF Output Current All Io 0 25 Adc Output Current Limit Inception All IO, lim 27.5 30  Adc Efficiency (VIN=VIN nom, TA=25°C, VO= VO,set) I =100% I All η 94.7 % O O, max I =40% to 80% I All η 95.2 % O O, max Switching Frequency (primary MOSFETs) fsw 150 kHz (Output Ripple 2X switching frequency) Dynamic Load Response dIO/dt=1A/10s; Vin=Vin,nom; TA=25°C; (Tested with a 10μF ceramic and 3x 470μF polymer capacitor across the load.) Load Change from IO = 50% to 75% of IO,max: V  750  mV pk pk Peak Deviation All t 2 ms s   Settling Time (V <10% peak deviation) O Load Change from IO = 75% to 50% of IO,max:  750  Peak Deviation All V mV pk pk  2  Settling Time (V <10% peak deviation) t ms O s 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 (IO=80%IO, max, TA=40°C, Airflow = 200 lfm), 90% confidence) Issue 3: Method I, Case 3 All MTBF 11,795,001 Hours 9 FIT 84.8 10 /Hours Issue 2: Method I, Case 1 All MTBF 3,933,515 Hours 9 FIT 254.2 10 /Hours Weight – Open Frame 29.5 (1.04) g (oz.) Weight – with Baseplate option 39.0 (1.38) g (oz.) October 17, 2016 ©2016 General Electric Company. All rights reserved. Page 3 Data Sheet GE EBVW025A0B 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 (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 Logic Low Specification On/Off Thresholds: Remote On/Off Current – Logic Low All Ion/off 280  310 μA Logic Low Voltage All V -0.3  0.8 V on/off dc Logic High Voltage – (Typ = Open Collector) All V 2.0 14.5 V on/off  dc Logic High maximum allowable leakage current All Ion/off   10 μA (V = 2.0V) on/off Maximum voltage allowed on On/Off pin All V 14.5 V on/off   dc Turn-on Delay and Rise Time (I =I ) O O, max T delay, Enable with All w/o -P 160 ms   Vin T =Time until V = 10% of V from either application of Vin delay O O,set 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 Tdelay, Enable with w/ -P   180* ms least 150 milli-seconds (Enable with on/off). Vin * Increased Tdelay due to startup for parallel modules. Tdelay, Enable with 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 modules. w/ -P Trise   300* ms Load Sharing Current Balance (difference in output current across all modules with outputs in -P Option I 3 A diff parallel, no load to full load) Prebias Output Load Performance: Back Bias current sunk by output during start-up All   50 mA Back Bias current sunk by output during shut-down 50 mA   All w/ ”9” Remote Sense Range V 0.5 V Sense   dc option All w/ ”9” Output Voltage Adjustment range VO, set 6.0 15 13.2 Vdc option Output Overvoltage Protection All VO,limit 14.5 17.0 Vdc Overtemperature Protection All T 140 °C ref   (See Feature Descriptions) Input Undervoltage Lockout Turn-on Threshold 34 35 36 V dc Turn-off Threshold 32 33.5 34.5 V dc Input Overvoltage Lockout Turn-off Threshold 83 85 86 Vdc Turn-on Threshold 76 79  Vdc October 17, 2016 ©2016 General Electric Company. All rights reserved. Page 4 Data Sheet GE EBVW025A0B Barracuda Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output Characteristic Curves The following figures provide typical characteristics for the EBVW025A0B (12V, 25A) at 25ºC. The figures are identical for either positive or negative Remote On/Off logic. INPUT VOLTAGE, VO (V) TIME, t (20 ms/div) Figure 1. Typical Input Characteristic at Room Figure 4. Typical Start-Up Using Remote On/Off with Vin Temperature. applied, negative logic version shown. OUTPUT CURRENT, IO (A) TIME, t (1 ms/div) Figure 2. Typical Converter Efficiency Vs. Output current at Figure 5. Typical Transient Response to Step change in Load Room Temperature. from 25% to 50% to 25% of Full Load at 48 Vdc Input and C =3x470uF Polymer. O TIME, t (40 ms/div) TIME, t (1 ms/div) Figure 3. Typical Start-Up Using Vin with Remote On/Off Figure 6. Typical Transient Response to Step Change in Load enabled, negative logic version shown. from 50% to 75% to 50% of Full Load at 48 Vdc Input and CO=3x470uF Polymer.. October 17, 2016 ©2016 General Electric Company. All rights reserved. Page 5 OUTPUT VOLTAGE INPUT VOLTAGE EFFCIENCY, η (%) INPUT CURRENT, Ii (A) V (V) (5V/div) V (V) (20V/div) O IN 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) IO (A) (5A/div) VO (V) (500mV/div) Data Sheet GE EBVW025A0B 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 Voltage at Room Temperature. 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 October 17, 2016 ©2016 General Electric Company. All rights reserved. Page 6 OUTPUT VOLTAGE, OUTPUT VOLTAGE, VO (V) OUTPUT VOLTAGE, VO (V) V (V) (50mV/div) O OUTPUT VOLTAGE, VO (V) OUTPUT VOLTAGE V (V) O Data Sheet GE EBVW025A0B 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 220μF 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 the end-use safety agency standard, i.e., CAN/CSA† C22.2 No. Figure 12. Input Reflected Ripple Current Test Setup. 60950-1-07, 2nd Edition + A1:2011 (MOD), ANSI/UL*60950-1- 2011, IEC 60950-1 (2nd edition); am1, and VDE‡ (EN60950-1, 2nd. 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 exceeding safety extra-low voltage. Consideration should be Note: All measurements are taken at the module terminals. When taken to restrict operator accessibility. socketing, place Kelvin connections at module terminals to avoid measurement errors due to socket contact resistance. Figure 14. Output Voltage and Efficiency Test Setup. October 17, 2016 ©2016 General Electric Company. All rights reserved. Page 7 Data Sheet GE EBVW025A0B Barracuda Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output Table, the module will shut down and remain latched off. The Feature Descriptions overvoltage latch is reset by either cycling the input power, or Overcurrent Protection by toggling the on/off pin for one second. If the output overvoltage condition still exists when the module restarts, it To provide protection in a fault output overload condition, the will shut down again. This operation will continue indefinitely module is equipped with internal current-limiting circuitry and until the overvoltage condition is corrected. can endure current limiting continuously. If the overcurrent A factory configured auto-restart option (with overcurrent and condition causes the output voltage to fall greater than 4.0V overvoltage auto-restart managed as a group) is also from V , the module will shut down and remain latched off. o,set available. An auto-restart feature continually attempts to The overcurrent latch is reset by either cycling the input power restore the operation until fault condition is cleared. or by toggling the on/off pin for one second. If the output overload condition still exists when the module restarts, it will Overtemperature Protection shut down again. This operation will continue indefinitely until These modules feature an overtemperature protection circuit the overcurrent condition is corrected. to safeguard against thermal damage. The circuit shuts down A factory configured auto-restart option (with overcurrent and the module when the maximum device reference temperature overvoltage auto-restart managed as a group) is also is exceeded. The module will automatically restart once the available. An auto-restart feature continually attempts to reference temperature cools by ~25°C. restore the operation until fault condition is cleared. Input Under/Over voltage Lockout Remote On/Off At input voltages above or below the input under/over voltage lockout limits, module operation is disabled. The module will The module contains a standard on/off control circuit begin to operate when the input voltage level changes to reference to the V (-) terminal. Two factory configured remote IN within the under and overvoltage lockout limits. on/off logic options are available. Positive logic remote on/off turns the module on during a logic-high voltage on the ON/OFF Load Sharing (-P Option Code) pin, and off during a logic low. Negative logic remote on/off turns the module off during a logic high, and on during a logic For higher power requirements, the EBVW025 power module low. Negative logic, device code suffix "1," is the factory- offers an optional feature for parallel operation. This feature preferred configuration. The On/Off circuit is powered from an provides a precise forced output voltage load regulation droop internal bias supply, derived from the input voltage terminals. characteristic. The output set point and droop slope are To turn the power module on and off, the user must supply a factory calibrated to insure optimum matching of multiple switch to control the voltage between the On/Off terminal and modules’ load regulation characteristics. To implement load the V (-) terminal (V ). The switch can be an open collector IN on/off sharing, the following requirements should be followed: or equivalent (see Figure 15). A logic low is V = -0.3V to 0.8V. on/off  The VOUT(+) and VOUT(-) pins of all parallel modules must be The typical I during a logic low (Vin=48V, On/Off on/off connected together. Balance the trace resistance for each Terminal=0.3V) is 147µA. The switch should maintain a logic- module’s path to the output power planes, to insure best low voltage while sinking 310µA. During a logic high, the load sharing and operating temperature balance. maximum Von/off generated by the power module is 8.2V. The  V must remain between 40V and 75V for droop sharing IN dc dc maximum allowable leakage current of the switch at Von/off = to be functional. 2.0V is 10µA. If using an external voltage source, the maximum  It is permissible to use a common Remote On/Off signal to voltage V on the pin is 14.5V with respect to the V (-) on/off IN start all modules in parallel. terminal.  These modules contain means to block reverse current flow If not using the remote on/off feature, perform one of the upon start-up, when output voltage is present from other following to turn the unit on: parallel modules, thus eliminating the requirement for external output ORing devices. Modules with the –P option For negative logic, short ON/OFF pin to VIN(-). will self determine the presence of voltage on the output For positive logic: leave ON/OFF pin open. from other operating modules, and automatically increase its Turn On delay, T , as specified in the Feature delay Specifications Table.  When parallel modules startup into a pre-biased output, e.g. partially discharged output capacitance, the Trise is automatically increased, as specified in the Feature Specifications Table, to insure graceful startup.  Insure that the load is <50% IO,MAX (for a single module) until all parallel modules have started (load full start > module T time max + T time). delay rise Figure 15. Remote On/Off Implementation.  If fault tolerance is desired in parallel applications, output ORing devices should be used to prevent a single module Output Overvoltage Protection failure from collapsing the load bus. The module contains circuitry to detect and respond to output  Modules with –P option cannot include the “9” option. overvoltage conditions. If the overvoltage condition causes the output voltage to rise above the limit in the Specifications October 17, 2016 ©2016 General Electric Company. All rights reserved. Page 8 Data Sheet GE EBVW025A0B Barracuda Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output V V  Feature Descriptions (continued) Where o,set desired   %  100   V o,set   Remote Sense (“9” Option Code) For example, to trim-down the output voltage of the module by Remote sense minimizes the effects of distribution losses by 20% to 9.6V, Rtrim-down is calculated as follows: regulating the voltage at the remote-sense connections (See  %  20 Figure 16). The voltage between the remote-sense pins and the 511  output terminals must not exceed the output voltage sense R  10.22 k 15.3k trimdown   range given in the Feature Specifications table: 20   [VO(+) – VO(–)] – [SENSE(+) – SENSE(–)]  0.5 V Connecting an external resistor (Rtrim-up) between the T/C1 pin Although the output voltage can be increased by both the and the VO(+) (or Sense (+)) pin increases the output voltage set remote sense and by the trim, the maximum increase for the point. The following equations determine the required external output voltage is not the sum of both. The maximum increase resistor value to obtain a percentage output voltage change of is the larger of either the remote sense or the trim. ∆%: The amount of power delivered by the module is defined as the 5.11V  (100%)  511  o,set R    10 .22  trimup   voltage at the output terminals multiplied by the output 1.225% %   current. When using remote sense and trim, the output voltage of the module can be increased, which at the same output V V  Where desired o,set   %  100 current would increase the power output of the module. Care   V o,set   should be taken to ensure that the maximum output power of For example, to trim-up the output voltage of the module by the module remains at or below the maximum rated power 5% to 12.6V, Rtrim-up is calculated is as follows: (Maximum rated power = Vo,set x Io,max).  %  5 5.1112.0 (100 5) 511  SENSE(+) R   10.22 k 938.8k trimup   SENSE(–) 1.225 5 5   The voltage between the Vo(+) and Vo(–) terminals must not VI(+) VO(+) IO SUPPL Y LOAD exceed the minimum output overvoltage protection value II VI(-) VO(–) shown in the Feature Specifications table. This limit includes CONTACT CONT ACT AND RESIST ANCE DISTRIBUTION LOSSE any increase in voltage due to remote-sense compensation and output voltage set-point adjustment trim. Figure 16. Circuit Configuration for remote sense. Although the output voltage can be increased by both the remote sense and by the trim, the maximum increase for the Trim, Output Voltage Programming (“9” Option output voltage is not the sum of both. The maximum increase is the larger of either the remote sense or the trim. The amount Code) of power delivered by the module is defined as the voltage at Trimming allows the output voltage set point to be increased the output terminals multiplied by the output current. When or decreased; this is accomplished by connecting an external using remote sense and trim, the output voltage of the module (+) pin or the resistor between the TRIM pin and either the VO can be increased, which at the same output current would V (-) pin. O increase the power output of the module. Care should be taken to ensure that the maximum output power of the V (+) O module remains at or below the maximum rated power R trim-up (Maximum rated power = VO,set x IO,max). Modules with“9” option LOAD cannot include the –P option. T/C1 R trim-down Thermal Considerations EBVW020A0B VO(-) The power modules operate in a variety of thermal environments and sufficient cooling should be provided to help ensure reliable operation. Figure 17. Circuit Configuration to Trim Output Voltage. Thermal considerations include ambient temperature, airflow, Connecting an external resistor (Rtrim-down) between the T/C1 module power dissipation, and the need for increased pin and the Vo(-) (or Sense(-)) pin decreases the output voltage reliability. A reduction in the operating temperature of the set point. To maintain set point accuracy, the trim resistor module will result in an increase in reliability. tolerance should be ±1.0%. The following equation determines the required external resistor value to obtain a percentage output voltage change of ∆% 511   R   10 .22  trimdown    %   October 17, 2016 ©2016 General Electric Company. All rights reserved. Page 9 Data Sheet GE EBVW025A0B Barracuda Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output Feature Descriptions (continued) The thermal data presented here is based on physical measurements taken in a wind tunnel, using automated thermo-couple instrumentation to monitor key component temperatures: FETs, diodes, control ICs, magnetic cores, ceramic capacitors, opto-isolators, and module pwb conductors, while controlling the ambient airflow rate and temperature. For a given airflow and ambient temperature, the module output power is increased, until one (or more) of the components reaches its maximum derated operating Figure 19. Location of the thermal reference temperature temperature, as defined in IPC-9592. This procedure is then TH2 for Base Plate module. Do not exceed 110 °C. repeated for a different airflow or ambient temperature until a The output power of the module should not exceed the rated family of module output derating curves is obtained. power for the module as listed in the Ordering Information table. Although the maximum temperature of the power modules is TH , you can limit this temperature to a lower value for x extremely high reliability. Please refer to the Application Note “Thermal Characterization Process For Open-Frame Board-Mounted Power Modules” for a detailed discussion of thermal aspects including maximum device temperatures. Heat Transfer via Convection Increased airflow over the module enhances the heat transfer via convection. The thermal derating of figures 20 through 22 show the maximum output current that can be delivered by each module in the indicated orientation without exceeding the maximum TH temperature versus local ambient x temperature (T ) for air flows of, Natural Convection, 1 m/s (200 A ft./min), 2 m/s (400 ft./min). The use of Figures 20 is shown in the following example: Example Heat-dissipating components are mounted on the top side of Heat-dissipating components are mounted on the top side of What is the minimum airflow necessary for a EBVW025A0B the module. Heat is removed by conduction, convection and operating at VI = 48 V, an output current of 14A, and a radiation to the surrounding environment. Proper cooling can maximum ambient temperature of 70 °C in transverse be verified by measuring the thermal reference temperature orientation. (TH ). Peak temperature (TH ) occurs at the position indicated in x x Solution: Figure 18 and 19. For reliable operation this temperature Given: V = 48V, I = 14A, T = 70 °C in O A should not exceed the listed temperature threshold. Determine required airflow (V) (Use Figure 20): V = 200LFM or greater. Figure 18. Location of the thermal reference temperature TH . Do not exceed 113 °C. 1 LOCAL AMBIENT TEMPERATURE, T (C) A Figure 20. Output Current Derating for the Open Frame EBVW025A0B in the Transverse Orientation; Airflow Direction from Vin(-) to Vin(+); Vin = 48V. October 17, 2016 ©2016 General Electric Company. All rights reserved. Page 10 OUTPUT CURRENT, I (A) O Data Sheet GE EBVW025A0B Barracuda Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output suggested. The wave preheat process should be such that the temperature of the power module board is kept below 210C. For Pb solder, the recommended pot temperature is 260C, while the Pb-free solder pot is 270C max. Not all RoHS- compliant through-hole products can be processed with paste-through-hole Pb or Pb-free reflow process. If additional information is needed, please consult with your GE representative for more details. Reflow Lead-Free Soldering Information The RoHS-compliant through-hole products can be processed with the following paste-through-hole Pb or Pb-free reflow process. Max. sustain temperature : LOCAL AMBIENT TEMPERATURE, T (C) A 245C (J-STD-020C Table 4-2: Packaging Thickness>=2.5mm / Figure 21. Output Current Derating for the Base Plate 3 Volume > 2000mm ), EBVW025A0Bxx-H in the Transverse Orientation; Airflow Peak temperature over 245C is not suggested due to the Direction from Vin(-) to Vin(+); Vin = 48V. potential reliability risk of components under continuous high- temperature. Min. sustain duration above 217C : 90 seconds Min. sustain duration above 180C : 150 seconds Max. heat up rate: 3C/sec Max. cool down rate: 4C/sec In compliance with JEDEC J-STD-020C spec for 2 times reflow requirement. Pb-free Reflow Profile BMP module will comply with J-STD-020 Rev. C (Moisture/Reflow Sensitivity Classification for Nonhermetic Solid State Surface Mount Devices) for both Pb- free solder profiles and MSL classification procedures. BMP will comply with JEDEC J-STD-020C LOCAL AMBIENT TEMPERATURE, TA (C) specification for 3 times reflow requirement. The suggested Figure 22. Output Current Derating for the Base Plate Pb-free solder paste is Sn/Ag/Cu (SAC). The recommended EBVW025A0Bxx-H and 0.25” heat sink in the Transverse linear reflow profile using Sn/Ag/Cu solder is shown in Figure Orientation; Airflow Airflow Direction from Vin(-) to Vin(+); Vin 23. = 48V. Layout Considerations Peak Temp. 240-245°C The EBVW025 power module series are low profile in order to Ramp down be used in fine pitch system card architectures. As such, max. 4°C/Sec component clearance between the bottom of the power 217°C module and the mounting board is limited. Avoid placing 200°C copper areas on the outer layer directly underneath the power Time Limited 90 Sec. above 217°C module. Also avoid placing via interconnects underneath the 150°C power module. Preheat time 100-150 Sec. For additional layout guide-lines, refer to FLT007A0Z Data Ramp up Sheet. max. 3°C/Sec 25°C Through-Hole Lead-Free Soldering Time Information Figure 23. Recommended linear reflow profile using Sn/Ag/Cu solder. The RoHS-compliant, Z version, through-hole products use the SAC (Sn/Ag/Cu) Pb-free solder and RoHS-compliant MSL Rating components. The non-Z version products use lead-tin (Pb/Sn) solder and RoHS-compliant components. Both version The EBVW025A0BA modules have a MSL rating as indicated in modules are designed to be processed through single or dual the Device Codes table, last page of this document. wave soldering machines. The pins have an RoHS-compliant, pure tin finish that is compatible with both Pb and Pb-free Storage and Handling wave soldering processes. A maximum preheat rate of 3C/s is October 17, 2016 ©2016 General Electric Company. All rights reserved. Page 11 OUTPUT CURRENT, IO (A) OUTPUT CURRENT, IO (A) Temp Data Sheet GE EBVW025A0B Barracuda Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output The recommended storage environment and handling Post Solder Cleaning and Drying procedures for moisture-sensitive surface mount packages is Considerations detailed in J-STD-033 Rev. A (Handling, Packing, Shipping and Use of Moisture/Reflow Sensitive Surface Mount Devices). Post solder cleaning is usually the final circuit-board assembly Moisture barrier bags (MBB) with desiccant are required for process prior to electrical board testing. The result of MSL ratings of 2 or greater. These sealed packages should not inadequate cleaning and drying can affect both the reliability be broken until time of use. Once the original package is of a power module and the testability of the finished broken, the floor life of the product at conditions of 30°C and circuit-board assembly. For guidance on appropriate soldering, 60% relative humidity varies according to the MSL rating (see cleaning and drying procedures, refer to GE Board Mounted J-STD-025A). The shelf life for dry packed SMT packages will be Power Modules: Soldering and Cleaning Application Note a minimum of 12 months from the bag seal date, when stored (AP01-056EPS). at the following conditions: < 40° C, < 90% relative humidity. EMC Considerations The circuit and plots in Figure 24 shows a suggested EN55022 Class B. For further information on designing for EMC configuration to meet the conducted emission limits of compliance, please refer to the FLT007A0 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. October 17, 2016 ©2016 General Electric Company. All rights reserved. Page 12 Data Sheet GE EBVW025A0B Barracuda Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output Packaging Details All versions of the EBVW025A0B 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 EBVW025A0B 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 36 pcs (1 box of 2 full trays + 1 empty top tray) Open Frame Module Tray Base Plate Module Tray Figure 25. EBVW025 Packaging Tray October 17, 2016 ©2016 General Electric Company. All rights reserved. Page 13 Data Sheet GE EBVW025A0B Barracuda Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output Mechanical Outline for EBVW025A0B Through-hole Module Dimensions are in millimeters and [inches]. Tolerances: x.x mm  0.5 mm [x.xx in.  0.02 in.] (Unless otherwise indicated) x.xx mm  0.25 mm [x.xxx in  0.010 in.] Top side label includes GE name, product designation and date code. Top View* Side View *For optional pin lengths, see Table 2, Device Coding Scheme and Options Bottom View Pin Function 1 Vi(+) 2 ON/OFF 3 Vi(-) 4 Vo(-) † 5 SENSE(-) † 6 TRIM † 7 SENSE(+) 8 Vo(+) † - Optional Pins, when including “9” Option, See Table 2 October 17, 2016 ©2016 General Electric Company. All rights reserved. Page 14 Data Sheet GE EBVW025A0B Barracuda Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output Mechanical Outline for EBVW025A0B–H (Baseplate version) Through-hole Module Dimensions are in millimeters and [inches]. Tolerances: x.x mm  0.5 mm [x.xx in.  0.02 in.] (Unless otherwise indicated) x.xx mm  0.25 mm [x.xxx in  0.010 in.] Top View Side View *For optional pin lengths, see Table 2, Device Coding Scheme and Options * Bottom side label includes GE name, product designation and date code. Bottom View* Pin Function 1 Vi(+) 2 ON/OFF 3 Vi(-) 4 Vo(-) † 5 SENSE(-) † 6 TRIM † 7 SENSE(+) 8 Vo(+) † - Optional Pins, when including “9” Option, See Table 2 October 17, 2016 ©2016 General Electric Company. All rights reserved. Page 15 Data Sheet GE EBVW025A0B Barracuda Series; DC-DC Converter Power Modules 36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output Mechanical Outline for EBVW025A0B–35PHZ (Baseplate version) Through-hole Module Dimensions are in millimeters and [inches]. Tolerances: x.x mm  0.5 mm [x.xx in.  0.02 in.] (Unless otherwise indicated) x.xx mm  0.25 mm [x.xxx in  0.010 in.] Top View Side View *For optional pin lengths, see Table 2, Device Coding Scheme and Options * Bottom side label includes GE name, product designation and date code. Bottom View* Pin Function 1 Vi(+) 2 ON/OFF 3 Vi(-) 4 Vo(-) † 5 SENSE(-) † 6 TRIM † 7 SENSE(+) 8 Vo(+) † - Optional Pins, when including “9” Option, See Table 2 October 17, 2016 ©2016 General Electric Company. All rights reserved. Page 16 Data Sheet GE EBVW025A0B 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 Pin Number Name 1* VIN(+) 2* ON/OFF 3* VIN(-) 4* VOUT(-) † 5 SENSE(-) † 6 TRIM † 7 SENSE(+) 8* VOUT(+) † - Optional Pins See Table 2 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] October 17, 2016 ©2016 General Electric Company. All rights reserved. Page 17 Data Sheet GE EBVW025A0B 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 MSL Product Codes Input Voltage Efficiency Connector Type Comcodes Voltage Current Rating 2a EBVW025A0B41Z 48V (3675Vdc) 12V 25A 94.7% Through hole 150024409 2a EBVW025A0B641Z 48V (3675Vdc) 12V 25A 94.7% Through hole 150021953 EBVW025A0B841Z 12V 25A 94.7% Through hole 2a 150023828 48V (3675Vdc) EBVW025A0B41-HZ 12V 25A 94.7% Through hole 2a 150023485 48V (3675Vdc) EBVW025A0B641-HZ 48V (3675Vdc) 12V 25A 94.7% Through hole 2a 150029296 EBVW025A0B641-PHZ 48V (3675Vdc) 12V 25A 94.7% Through hole 2a 1600086585A 2a EBVW025A0B9641-HZ 48V (3675Vdc) 12V 25A 94.7% Through hole 150021954 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 October 17, 2016 ©2016 General Electric Company. All rights reserved. Version 1.34