DRV8805: I would like to know if there is any mistake in the connection?

JITHU T P

Prodigy 140 points

Part Number: DRV8805

over 3 years ago

0 Wang5577 over 3 years ago

TI__Guru 56650 points

Hello, Jithu,

Please make sure SM0 always higher than 2V. nFault pin needs a pull-up resistor to check its logic.

Regards,

Wang Li

0 JITHU T P over 3 years ago

Prodigy 140 points

Hi Wang,

I have made the adjustments. Are there any errors now?

Also if I am not using nFault and Nhome signals can I leave it floating?

0 Wang5577 over 3 years ago in reply to JITHU T P

TI__Guru 56650 points

Hello, Jithu,

If nFault and Nhome signals are not used, those pins can be floating.

nHome pin doesn't need a pull-up resistor.

Regards,

Wang

0 JITHU T P over 3 years ago in reply to Wang5577

Prodigy 140 points

Ok. Apart from nHOME is everything else fine?

0 Wang5577 over 3 years ago in reply to JITHU T P

TI__Guru 56650 points

Jithu,

I didn't find other issue. But, I would recommend to valid the solution on an EVM (https://www.ti.com/tool/DRV8805EVM ) or on your on board before doing the mass production.

Regards,

Wang Li

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DRV8805: I would like to know if there is any mistake in the connection?