DRV8305-Q1: Request for schematic design review

Jeffrey Chung1

Part Number: DRV8305-Q1

Hi Team,

I'd like to ask you about the schematic design review of this device(DRV83055QPHPRQ1). Please check an attached schematic below and let me know the design review result.

Schematic_DRV83055Q.pdf

Regards,

4 months ago

0 Sarah Anthraper 4 months ago

TI__Prodigy 410 points

Hi Jeffrey,

Thanks for the question. I will aim to provide feedback by the end of next week.

Best,

Sarah

0 Jeffrey Chung1 4 months ago in reply to Sarah Anthraper

Expert 2705 points

Hi Sarah,

Is there any update? I need to provide your feedback to the customer, so please check it ASAP.

Regards,

0 Sarah Anthraper 4 months ago in reply to Jeffrey Chung1

TI__Prodigy 410 points

Hi Jeffrey,

Overall the schematic looks good. I do have one question.

Pin 15 AVDD: There are two capacitors in series. We recommend a single 1uF Capacitor C142 to GND. What is the reason for C141?

Best,

Sarah

0 Jeffrey Chung1 4 months ago in reply to Sarah Anthraper

Expert 2705 points

Hi Sarah,

Customer added 100nF capacitor with 1uF capacitor on AVDD pin for preparing additional ripple improvement. As you told me, I recommended a single 1uF capacitor.

Regards,

0 Sarah Anthraper 4 months ago in reply to Jeffrey Chung1

TI__Prodigy 410 points

Hi Jeffrey,

Understood on current ripple improvement. I see no issue including the 100nF capacitor as well.

Best,

Sarah

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DRV8305-Q1: Request for schematic design review