DRV8306: DVDD no output

Hank Zhang

Expert 2040 points

Part Number: DRV8306

Datasheet points out that the DVDD has a voltage of 3.3v, but my tests found no output.What could be the reason.The VM with voltage

0 Adam Sidelsky over 6 years ago

Hank,

What else is connected to DVDD on your board?

Have you tried a second device or board?

Regards,

-Adam

0 Hank Zhang over 6 years ago in reply to Adam Sidelsky

Expert 2040 points

I have tested two boards with no output for DVDD

0 Adam Sidelsky over 6 years ago in reply to Hank Zhang

Hank,

Are you using DVDD as the only pull-up for the ENABLE pin? If so this cannot work because DVDD is disabled when ENABLE is low.

Regards,

-Adam

Motor drivers forum