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DRV8837C: Reverse voltage protection.

Part Number: DRV8837C

Hi,

In DRV8837C i am planning to short VM & VCC together as my supply voltage is 4.5 v nominal from 3x AAA cells.

If accidentally if i put the cells in reverse polarity does the device have protection?  or should i have to provide an external schotty diode in series with the battery?

thank you

Vasudha