CC109105285 Lineage Power, CC109105285 Datasheet - Page 19

• Manufacturer Part Number: CC109105285
• Description: Module DC-DC 1-OUT 0.8V to 2.75V 30A 10-Pin SMT T/R
• Manufacturer: Lineage Power

Wind Tunnel
Data Sheet
April 9, 2010
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 54. Note
that the airflow is parallel to the short axis of the
module as shown in Figure 55. The derating data
applies to airflow in either direction of the module’s
long axis.
Figure 54. Thermal Test Setup.
LINEAGE
PWBs
POWER
flow
Air
(0.50)
x
12.7_
(3.0)
76.2_
25.4_
(1.0)
Austin MegaLynx
Probe Location
for measuring
airflow and
ambient
temperature
Power Module
4.5 – 5.5Vdc input; 0.8 to 3.63Vdc Output; 30A output current
6.0 – 14Vdc Input; 0.8Vdc to 3.63Vdc Output; 20/30A output
TM
The thermal reference points, T
specifications are shown in Figure 56. For reliable
operation the temperatures at these points should
not exceed 125
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.
Figure 56. T ref Temperature measurement
location.
SMT: Non-Isolated DC-DC Power Modules:
Figure 55. Airflow direction for thermal testing.
o
C. The output power of the module
ref
used in the
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