DRV8705-Q1: Suggestion for Layout Review

sonali zodage

Part Number: DRV8705-Q1

We are using a DRV8705S motor driver IC for our application. For this motor driver we have attached layout file below which we design.

Please review layout and let us know your comments.

Thanks,

Sonali
IO_Controller Rev3.0.PcbDoc

over 3 years ago

0 sonali zodage over 3 years ago

Intellectual 365 points

Any update on this?

Thanks,

Sonali

0 Shinya Morita over 3 years ago in reply to sonali zodage

TI__Mastermind 44605 points

Hi Sonali

Thank you for your question. Can you provide the schematic? Mainly we do schematic review. I will check PCB as well but need schematic first.

regards

Shinya Morita

0 sonali zodage over 3 years ago in reply to Shinya Morita

Intellectual 365 points

Hi Shinya,

We have already reviewed the schematic from you only we wanted to review the layout. Please find the below attached schematic for your reference.

IO_Controller_Rev3.0_Schematic.pdf

Thanks,

Sonali

0 Jacob Thompson over 3 years ago in reply to sonali zodage

TI__Mastermind 23421 points

Hey Sonali,

I just spent about 20 minutes looking over your layout, it all looks very good. You have the capacitors close to the driver where possible, everything is rated to the same or higher voltage than recommended, and I don't see any issues anywhere with power planes or too small of vias. Great job, seems ready for manufacturing.

One small thing I found was some of the pours seem to be close to reaching a pin but doesn't quite make it - this isn't an issue because there are vias nearby connecting to a ground pin, but I thought it maybe worth mentioning checking your rules or manually adding a trace:

And another weird pour here, once again shouldn't matter:

Regards,

Jacob Thompson

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DRV8705-Q1: Suggestion for Layout Review