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DRV8889-Q1: Please review the schematic

Chase Jeong
Genius 5450 points
Part Number: DRV8889-Q1

Dear TI experts,

My customer drew their schematic with DRV8889-Q1. Could you review this schematic?

1127(DRV8889-Q1).pdf

Best regards,

Chase

  • 0
    TI__Mastermind 26655 points

    Hello Chase,

    I will review this today and get you a feedback. Thanks for posting on this forum.

    Regards, Murugavel

  • 0 in reply to Murugavel4637
    TI__Mastermind 26655 points

    Hello Chase,

    I have marked the areas of concern in the schematic in red. See below. The bulk capacitance C10 should be around 47 uF to 100 uF based on the motor current used. On VSDO pin I see netlist name B_OUT2, this is a short circuit - incorrect. VSDO = DVDD = 5V, I assume customer is using 5V MCU logic to control SPI and GPIO correct?

    See typical application diagram from the datasheet - below snippet for recommended capacitor for CPL & CPH and VCP. They were not correct in the schematic.

    Regards, Murugavel