Data Sheet
GE
QBVW025A0B Barracuda™ Series; DC-DC Converter Power Modules
36-75Vdc Input; 12.0Vdc, 25.0A, 300W Output
Thermal Considerations (continued)
LOCAL AMBIENT TEMPERATURE, TA (C)
Figure 19. Output Current Derating for the Open Frame
QBVW025A0B in the Transverse Orientation; Airflow
Direction from Vin(-) to Vin(+); Vin = 48V.
LOCAL AMBIENT TEMPERATURE, TA (C)
Figure 22. Output Current Derating for the Base plate
QBVW025A0B-H with 0.5” heatsink in the Transverse
Orientation; Airflow Direction from Vin(-) to Vin(+); Vin = 48V
LOCAL AMBIENT TEMPERATURE, TA (C)
Figure 20. Output Current Derating for the Base plate
QBVW025A0B-H in the Transverse Orientation; Airflow
Direction from Vin(-) to Vin(+); Vin = 48V.
LOCAL AMBIENT TEMPERATURE, TA (C)
Figure 23. Output Current Derating for the Base plate
QBVW025A0B-H with 1.0” heatsink in the Transverse
Orientation; Airflow Direction from Vin(-) to Vin(+); Vin = 48V.
LOCAL AMBIENT TEMPERATURE, TA (C)
COLD WALL TEMPERATURE, TC (C)
Figure 21. Output Current Derating for the Base plate
QBVW025A0B-H with 0.25” heatsink in the Transverse
Orientation; Airflow Direction from Vin(-) to Vin(+); Vin =
48V
Figure 24. Output Current Derating for the Base Plate
QBVW025A0B-H in a Cold wall application; Local Internal Air
Temperature near module=80C, VIN = 48V, VOUT setting
anywhere from 6.0V to 12.0V.
May 9, 2013
©2012 General Electric Company. All rights reserved.
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