I have a new design with several PTD08A020W and PTD08D210W modules controlled by a UCD9248 controller. One of the PTD08A020W modules has a high temperature fault with a temperature reading of 112 as reported through the TI Fusion Digital Power Designer software. The module next to it has a temperature reading of 30. There is a series sense resistor on the output of each module and I have removed those resistors while I debug these circuits. So there is no load or current output from the failing device. With the resistors removed I still see a high temp fault. I have tried clearing the fault and logged fault but the fault still persists. We have used a thermal I have seen this on two different boards same module on both boards. Analysis with a thermal camera yielding no hot spots on either board.
Have you seen this type of fault before? Can you recommend a course of action?
Regards,
Kyle