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DRV8837: what is the difference between the solution to support brushless/brush motor?

Part Number: DRV8837

Hello expert,

My customer would like to know if there is difference between solution support brushless/brush motor? For Brushless motor and brush motor, do we need to base on different criteria to choose solution for them? Thanks a lot!!

Best regards,

Ann Lien

  • Hi Ann,

    If you are referring to a brushed motor and an electrically commutated (EC) brushless motor with a single hall sensor, there is no difference.

    As an example, please see the reference design:  

    If you are referring to 3 phase brushless design, a third half bridge is required and the ability to control the half bridges independently.