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  • TI Thinks Resolved

DRV8302: Output GL_X and GH_X when EN_GATE activated

Prodigy 20 points

Replies: 4

Views: 411

Part Number: DRV8302

Hi,

I am using a driver DRV8302 to pilot my brushless DC motor. 

Before using it with the motor, I have to make some test to verify if it works well. For example, first step was to verify is Driver responds well to the supply voltage (30V). I measure GVDD, DVDD and AVDD PIN and check the datasheet to see if it matches.

Everything is fine with that part so, after supplying my En_Gate with a 5V-PIN from my STM32, I measured each GL and GH pin and I have obtained the values below :

GH_X : 3.2V

GL_X : 3.8V

My driver is correctly bound to the ground.

Thanks for your answer

  • Axel,

    Are you driving the inputs of the DRV8302? These would be INH_x and INL_x with x being A, B, and C.

    Is this the EVM board? Which board are you using?


    Regards,

    -Adam

  • In reply to Adam Sidelsky:

    Hi Adam,

    I am not driving my inputs yet. I want to make sure my board is functionnal in checking all driver's function.

    I did the board myself, using the datasheet. Components used are the same as the schematics.

    Regards,

    Axel

  • In reply to Axel Lemas:

    Axel,

    Please provide your schematic files.

    Regards,

    -Adam
  • In reply to Adam Sidelsky:

    Axel,

    I am closing this thread for now. Please open a new thread if you have further questions.

    Regards,

    -Adam

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