APXW005A0X3-SRZ Datasheet, PDF (15/21 Pages) Lineage Power Corporation – 9-36V ProLynxTM 5A: Non-Isolated DC-DC Power Modules

Preliminary Data Sheet
9-36V ProLynx^TM 5A: Non-isolated DC-DC Power Modules
July 22, 2010
9 – 36Vdc input; 3Vdc to 18Vdc output; 5A to 2.5A output current
Thermal Considerations
Power modules operate in a variety of thermal
environments; however, sufficient cooling should always
be provided to help ensure reliable operation.
Considerations include ambient temperature, airflow,
module power dissipation, and the need for increased
reliability. A reduction in the operating temperature of
the module will result in an increase in reliability. The
thermal data presented here is based on physical
measurements taken in a wind tunnel. The test set-up
is shown in Figure 39. The preferred airflow direction
for the module is in Figure 40. The derating data
applies to airflow in either direction of the module’s short
axis.
The thermal reference points, Tref used in the
specifications are also shown in Figure 40. For reliable
operation the temperatures at these points should not
exceed 115^oC. The output power of the module should
not exceed the rated power of the module (Vo,set x
Io,max).
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.
Wind Tunnel
PWBs
25.4_
(1.0)
Power Module
76.2_
(3.0)
x
12.7_
(0.50)
Air
flow
Probe Location
for measuring
airflow and
ambient
temperature
Figure 39. Thermal Test Setup.
Figure 40. Preferred airflow direction and location of
hot-spot of the module (Tref).
LINEAGE POWER
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