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DRV8838: Schematic review

Jimmy Lai
Expert 6845 points
Part Number: DRV8838

Dear Team,

There is a good news that we DIN DRV8838 in customer's new project.

Could you help to review the schematic?

Many Thanks 

Jimmy

  • 0
    TI__Guru 56650 points

    Jimmy,

    The output resonant frequency is 4.5kHz; capacitance is 25nF, the inductance would be around 50mH.  DRV8838 can drive it.

    EN pin is connected to nSLEEP pin. According to the device logic table, the motor driver only has reverse and forward mode. Please verify the PWM duty cycle and the output ripple current could be much higher regular PWM control.

    To me, PH pin is good for direction control. EN pin is good for PWM control.

    Regards,

    Wang Li