GE Industrial Solutions 40A Analog MegaDLynx - Manual (Page 14)

GE
Data Sheet
40A Analog MegaDLynx TM : Non-Isolated DC-DC Power Modules
4.5Vdc –14.4Vdc input; 0.6Vdc to 2.0Vdc output; 40A Output Current
April 24, 2013 ©2012 General Electric Company. All rights reserved. Page 14
Air
flow
x
Power Module
Wind Tunnel
PWBs
12.7_
(0.50)
76.2_
(3.0)
Probe Location
for measuring
airflow and
ambient
temperature
25.4_
(1.0)
Figure 29. Thermal Test Setup.
The thermal reference points, T
ref
used in the specifications
are also shown in Figure 30. For reliable operation the
temperatures at these points should not exceed 130°C. 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.
Figure 30. Preferred airflow direction and location of hot-
spot of the module (Tref).