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DRV8825: DRV8825 design problem

Part Number: DRV8825

Hi, support team

My customer has the questions as follow:

I'm using the DRV8825 in a design where I am interfacing to an external microcontroller with a 5 VDC supply.

I/O levels from this microcontroller are similarly 5 V.

The DRV datasheet seems to indicate I can drive the logic-level inputs on the device with 5V logic levels without issue.

I would like to know if a separate 3.3 VDC regulated supply is recommended for the DRV in addition to the V3P3OUT provided, as the datasheet seems to indicate this output can only provide 1 mA.

I would like to use the nFAULT output to directly drive an LED (~5 mA) and I'm not sure if I'm better off just not using the DRV's internal V3P3OUT at all, and providing my own 3.3 VDC source?

Thanks so much.

Best regards,