Here's an issue from the customer may need your help:
Using a driver designed with the DRV8311H, the current issues are as follows:
The LDO does not output 3.3 V. Is there any problem with the circuit design? (please see the schematic below) Also, the nfault pin is floating, will this have any impact on the issue?
Pin 17 (AVDD) is the LDO inside the chip and should theoretically output 3.3V after power up.
Could you help check this case? Thanks.