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DRV8718-Q1: rise time changing issue

Part Number: DRV8718-Q1

Hi Team,

The customer are using the DRV8718 to drive a DC motor. To solve EMC issues, the customer placed a 220-nF capacitor in parallel on both sides of the DC motor.   

When the DRV8718 drive is actually applied, the rise time of the MOS tube with low side freewheeling was found to be changing from 1us to 5us. (Drive current is around 30 mA)

Could you please help look into this issue? Thanks.

Best Regards,

Cherry