DRV8876-Q1: charge pump active state

Mingkang Song

Expert 3360 points

Part Number: DRV8876-Q1

Hi team,

When the charge pump is in these two fault conditions of CPUV and OCP, is the charge pump in the active state?

Thanks！

over 1 year ago

0 Keerthivasan Kumanan over 1 year ago

TI__Mastermind 18865 points

Hi Mingkang,

Give me 24 hours to look into this and get back to you.

Best,

Keerthi

0 Mingkang Song over 1 year ago

TI__Expert 3360 points

Hi Keerthi,

Any update here?

0 Keerthivasan Kumanan over 1 year ago in reply to Mingkang Song

TI__Mastermind 18865 points

Hi MIngkang,

I have asked design but will try this myself on bench and give you and update tomorrow.

Best,

Keerthi

0 Mingkang Song over 1 year ago in reply to Keerthivasan Kumanan

TI__Expert 3360 points

Hi Keerthi,

Thanks and looking forward to your reply!

0 Mingkang Song over 1 year ago in reply to Keerthivasan Kumanan

TI__Expert 3360 points

Hi Keerthi,

Could you pls share your update?

0 Keerthivasan Kumanan over 1 year ago in reply to Mingkang Song

TI__Mastermind 18865 points

Hi Minkang,

For OCP the CP is still active, we don't do anything, and this has been verified with design. I will update you on the CPUV behavior as soon as it is available.

Best,

Keerthi

0 Keerthivasan Kumanan over 1 year ago in reply to Keerthivasan Kumanan

TI__Mastermind 18865 points

Hi MInkang,

The CPUV lasts as long there is a UV condition. There is retry circuitry involved so when the UV condition is removed, operation will resume:

Best,

Keerthi

Motor drivers

Motor drivers forum

DRV8876-Q1: charge pump active state