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DRV2603: Reverse Current

Part Number: DRV2603

Hello team,

My customer has some questions. Would you please advise?

1. Is it necessary to insert a diode to counter the reverse voltage of the motor?  The customer do not think that they need it. Is that correct?

2. If a reverse voltage is applied from the motor, can the reverse current run from the motor to the power supply, VDD?

Your advice is appreciated.

Best Regards,
Akihisa Tamazaki