DRV8805 GND pin

masahiko shimizu

Other Parts Discussed in Thread: DRV8805

I have questions about GND of DRV8805 DW package.

1.Is it necessary to separate the GND for analog and the GND for digital in case of pattern wiring?
2.Is the following idea correct?
5,6,7pin -> analog GND
　 14,15,16pin -> digital GND

Best regards
Shimizu

over 10 years ago

0 Wilson Zuo over 10 years ago

TI__Mastermind 26065 points

Hi Shimizu,

All the GND are connected internally. There is no such AGND/DGND arrangement on the pin 5 6 7 and 14 15 16.

For the PCB layout, please just following the EVM will uniform GND plane. Just make sure the high current path is separated from the signal path.

A GND plane split may cause problem if it is not splitted properly.

Best regards.

0 masahiko shimizu over 10 years ago in reply to Wilson Zuo

Guru 11235 points

Hi Wilson

Thank you for your support.
I understood.

Thanks
Shimizu

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DRV8805 GND pin