DRV8718-Q1: PGND related question

Chuqiang Wen

Part Number: DRV8718-Q1

Tool/software:

Hi team,

I would like to check with you if PGND1 and PGND2 are connected together inside of IC? If it is OK to only connect one of PGNDx to system GND and leave another PGNDx floating? Any risks if we float one of PGNDx pin?

Thanks!

Ethan Wen

10 months ago

0 Ibinu Alaudeen Nadeera 10 months ago

TI__Genius 12051 points

Hi Ethan,

Thanks for your question

PGND1 and PGND2 are the sense and power return for Low-side MOSFET gate drive 1-4 and Low-side MOSFET gate drive 5-8 respectively.

It will be needed to connect both these pins.

Thanks,

Ibinu

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DRV8718-Q1: PGND related question