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DRV8837: Motor Protection

Electro_crazy
Intellectual 525 points
Part Number: DRV8837

Hello,

Is it required to connect a varistor or birectional TVS diode in parallel to motor for protection against high voltage spikes? or does the IC provides protection against inductor current?

  • 0
    TI__Mastermind 37683 points

    Hi Jain,

    The DRV8837 includes over-current protection. If the output current is above 1.9A for longer than the deglitch time of 1µs, the H-bridge FETs will be disabled protecting both the driver and the motor. If you wish to further protect against sudden voltage spikes, you can add a varistor or TVS diode.