DRV8873: DRV8873HPWPRQ1

Part Number:DRV8873

Hi,

Seeking replacement for VN771KE device from TI I came across DRV8873HPWPRQ1(Please visit the site to view this file)

Refering datasheet for DRV8873HPWPRQ1, reveals a recommendation for SRC pin to be tied to GND. Whereas in our design requirement we are seeking a separate Return path for the VM driving 28V controlled from a backplane interface by an external processor board.

So tying this to return path through a backplane requires trace connection in backplane. Whereas in datasheet recommendation it is mentioned to tie to GND through.

Does the device provide isolation between SRC and GND and PPAD pins internally?

Attaching implementation scheme as per recommended application circuit reference. Request you to confirm if it is ok to implement with DRV8873H replacing VN771K.

Thanks and Regards,

Subramaniam