DRV8841 and DRV8843 Full Torque function at Half Step driving

masahiko shimizu

Other Parts Discussed in Thread: DRV8843, DRV8841

My customer is considering the motor driver, they're the candidate of ON-Semi LV8702V.
LV8702V: http://www.onsemi.jp/pub_link/Collateral/ENA2121-D.PDF

They need Full Torque at Half Step driving as most important function.
->Indexer logic control the current '100%=>71%',
It's not much to customer request.They need '100%=>100%'.

I would like to recommend DRV8841 and DRV8843 for this business.
Can DRV8841 and DRV8843 support the Full Torque?

Best regards
Shimizu

over 11 years ago

0 Wilson Zuo over 11 years ago

TI__Mastermind 26065 points

Hi Shimizu

Yes. You can get the same full-torque feature as LV8702V with DRV8841 or DRV8843.

Just energizing the two phases at the same time in Full step or Half step control, you can get the full-torque, always keeping xI0 and xI1 at 100% setting.

Best regards,

0 masahiko shimizu over 11 years ago in reply to Wilson Zuo

Guru 11235 points

Hi Wilson

Thank you for your support.

I understood.

Best regards

Shimizu

Motor drivers

Motor drivers forum

DRV8841 and DRV8843 Full Torque function at Half Step driving