CC109101301 Lineage Power, CC109101301 Datasheet - Page 14

• Manufacturer Part Number: CC109101301
• Description: Module DC-DC 1-OUT 0.75V to 3.63V 3A 5-Pin SMT T/R
• Manufacturer: Lineage Power

Data Sheet
October 2, 2009
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 35. Note that the airflow is
parallel to the long axis of the module as shown in
figure 34. The derating data applies to airflow in
either direction of the module’s long axis.
The thermal reference point, T
specifications is shown in Figure 34. For reliable
operation this temperature should not exceed 115
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.
LINEAGE
Figure 34. T ref Temperature measurement
location.
Air Flow
POWER
T
ref
ref
2.4 – 5.5Vdc input; 0.75Vdc to 3.63Vdc Output; 3A output current
used in the
Austin MiniLynx
o
C.
Wind T unnel
Figure 35. Thermal Test Set-up.
PWBs
TM
SMT Non-isolated Power Modules:
flow
Air
(0.235)
x
5.97_
(3.0)
76.2_
25.4_
(1.0)
Probe Location
for measuring
airflow and
ambient
temperature
Power Module
14