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DRV8873: Unused pin nSCS and DISABLE

Fabio Gou
Expert 4545 points
Part Number: DRV8873


The customer want to connect Pin 6 nSCS and Pin 9 to ground directly.

Is it OK for the normal work?

  • 0
    TI__Mastermind 37683 points

    Hello,

    The DISABLE pin can be left connected to GND but not the nSCS pin. The nSCS pin should only go LOW when there is SPI communication. If nSCS pin remains LOW when there is no SPI communication, it can lead to SPI errors.

    Regards,

    Pablo Armet