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DRV8243-Q1: DRV8243SQRXYRQ1 : Why can't this part wake up ?

Part Number: DRV8243-Q1

Tool/software:

Hello, sir,
I'm using DRV8243SQRXYRQ1.


After powering on, the nSLEEP PIN is injected at 7.5usec low pulse, but the nFAULT PIN does not change to High.

May I know why?

1. DRVOFF PIN is Low.

2. nSLEEP PIN is High -> Low(7.5usec) -> High.

3. nFAULT still Low.