DRV8353RS-EVM: The fault light is always blinking

Part Number: DRV8353RS-EVM

Hi team,

Here's an issue from the customer may need your help:

After replacing the new 8353RSEVM, the lab11e routine is set to latched shutdown mode in the SPI. When loading, fault light is dim, but gradually turns on (continuously blinking). No nFAULT stuck condition has occurred. When no load, the FAULT light is good.

The FAULT light is good at no load and load after swapping the 48 volt 18650 lithium power supply with a 30 volt linear power supply. Why is this? 

Could you help check this case? Thanks.

Best Regards,

Cherry