We found on DRV8899 nFault pin has leakage current, due to nFault pin is open drain, it has an external 3.3V pullup at nFault pin.
No matter 5V source input to DRV8899, the voltage level is not correct. It can also be duplicated on the EVM.
if 5V in-> nFault pin is 2.3V
if 0V in-> nFault pin is 1.3V
Is this voltage level normal?