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DRV8871: About Tocp value of DRV8871

Noriaki Fukazawa
Expert 1620 points
Part Number: DRV8871
Dear Expert,
Thank you for your special support every day!!
I have a question about DRV8871.
My customers are considering DRV 8871 as well.
However, the overcurrent protection operates by the current at motor start, and the motor stops.
So please tell me the minimum and maximum of Tocp. 
Also, if you can not express it with a specific value, give advice on what to consider.
Best,Regars.
Fukazawa
  • 0
    TI__Guru 56650 points
    Fukazawa-san,

    Typical Tocp is 1.5us. According to the characterization test data, the minimum value is 1.45us and the maximum value is 2.54us.

    Adding a series inductor to limit the output current lower than OCP triggering point at maximum Tocp can help avoid the overcurrent protection at motor start and stop.