TIDT242 November 2022
The thermal images are shown in the following
figures. The ambient temperature is 25°C, and the thermal images
were taken with 13.5-V input and all outputs at a full load of 3 A.
The controller was operated for approximately 30 minutes before
thermal images were taken to ensure the thermal steady state was
reached. The board is 4-layer PCB, the copper of the top and bottom
layers is 2 oz, and the copper of middle layers is
1 oz.