LW020B Lineage Power, LW020B Datasheet - Page 13

• Manufacturer Part Number: LW020B
• Manufacturer: Lineage Power

April 2008
Lineage Power
Thermal Measurements
The derating curves in Figure 16 were derived from measurements obtained in an experimental apparatus shown
in Figure 21. Note that the module and the printed-wiring board (PWB) that it is mounted on are vertically oriented.
The passage has a rectangular cross section.
Note: Dimensions are in millimeters and (inches)
Layout Considerations
Copper paths must not be routed beneath the power module standoffs.
TEMPERATURE
AIR VELOCITY
AND AMBIENT
BELOW THE
FACING PWB
MEASURED
Figure 21. Experimental Test Setup
.
MODULE
AIRFLOW
76 (3.0)
13 (0.5)
PWB
MODULE
36 Vdc to 75 Vdc Inputs; 20 W
8-1126(C).d
13