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DRV8847: Motor drivers forum

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Prodigy 30 points
Part Number: DRV8847

Tool/software:

Using DRV8847 to drive a dc motor，when power on,the nfault pin is high about 10 seconds then change to low level.  The motor can run normarly. So I can't justify the motor condition. 

Please tell me how to check it

  • 0
    TI__Mastermind 27625 points

    Hi,

    nFAULT can go to LOW level under the following conditions for this device - see below from the datasheet.

    Likely the device may be running into to TSD (thermal shut down) after 10-seconds. Can you get the device temperature using a thermocouple or IR camera after turning on running for 10 s? Thank you.

    Regards, Murugavel