DRV8702-Q1: Holding current

NAOKI AOYAMA

Guru 11215 points

Part Number: DRV8702-Q1

Hello,

Our customer use the DRV8702, have a question about a holding current.

It is mentioned "IHOLD : Sink current after TDRIVE=40mA" on the DS.

But, in the Figure 38, there is no " IHOLD " at FET is off. There is only ISTRONG.

Does the DRV8702 has a holding sink current?

Best Regards,

Naoki Aoyama

over 4 years ago

0 Pablo Armet over 4 years ago

TI__Mastermind 37683 points

Hello,

We will investigate this further and you should expect an answer by Monday.

0 NAOKI AOYAMA over 4 years ago in reply to Pablo Armet

Guru 11215 points

Hello,

Thank you for your reply.

I will wait for your answer by Monday.

Regards,

Naoki Aoyama

0 Pablo Armet over 4 years ago in reply to NAOKI AOYAMA

TI__Mastermind 37683 points

Hello,

We are still investigating your question. You should expect a final answer by the end of this Friday.

0 NAOKI AOYAMA over 4 years ago in reply to Pablo Armet

Guru 11215 points

Hello,

I see. I will wait for your answer by this weekend.

Regards,

Naoki Aoyama

0 NAOKI AOYAMA over 4 years ago in reply to Pablo Armet

Guru 11215 points

Hello,

Is there any update?

Best Regards,

Naoki Aoyama

0 Pablo Armet over 4 years ago in reply to NAOKI AOYAMA

TI__Mastermind 37683 points

Hello,

I am sorry for not giving you an update sooner. This question required the assistance of the design engineers in charge of this part. At the moment I am waiting for a response from them. I will give you an update as soon as I have one. Thank you for your patience.

0 NAOKI AOYAMA over 4 years ago in reply to Pablo Armet

Guru 11215 points

Hello,

Thank you for your reply.

I see.

I will wait for your answer.

Regards,

Naoki Aoyama

0 Pablo Armet over 4 years ago in reply to NAOKI AOYAMA

TI__Mastermind 37683 points

Hello,

I have an update. The design engineer told me the diagram in the datasheet is incorrect. Both currents should go to I_HOLD.

I hope this answers your question.

Again, sorry for the long response time and thank you for your patience.

0 NAOKI AOYAMA over 4 years ago in reply to Pablo Armet

Guru 11215 points

Hello,

Thank you for your reply.

I understood the diagram.

Thanks,

Naoki Aoyama

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DRV8702-Q1: Holding current