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DRV8432: Motor stalls under heavy load

Part Number: DRV8432

Hi team,

Can you have a look at the following customer inquiry please?

After a pre-assembly step, we have noticed an increased failure of the DRV8432 motor bridge module: When operating under heavy load, the module blocks and no longer controls the attached motor. If the load is reduced again, the same module works properly. Strangely enough, the error only occurs in the warm-up phase; if the device is "run in" and warmed up, the behavior is rarely observed.

We have not encountered this behavior with previous devices in the last 5 years under the same loads.
We were able to narrow down the fault to the motor bridge module by replacing parts.
In order to be able to better assess the cause and the risk due to our pre-assembly, I wanted to ask you whether you can carry out examinations in the module (by x-ray etc.) and which examinations do you recommend?

Thank you,

Franz