• State Resolved
  • Locked Locked
  • Replies 1 reply
  • Subscribers 29 subscribers
  • Views 207 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

DRV8881: Several questions

Hirotaka Matsumoto
Guru 27585 points
Part Number: DRV8881


Hi all

Would you mind if we ask DRV8881?

<Question1>
DRV8881E(PH/EN I/F) has Auto Tune function, however DRV8881P(PWM I/F) doesn't have this function.
If it is possible, could you let us know why DRV8881P doesn't have Auto Tune function?
The customer asked us it.
In case of PWM I/F, is it difficult to configfure it?

<Question2>
Is it possible to adjust the setting of Torque_DAC with seamless?
As the background of this question, our customer would like to change the setting of Torque_DAC on the fly.


Kind regards,

Hirotaka Matsumoto

  • 0
    TI__Genius 14487 points
    Matsumoto-san,

    I believe the reason that AutoTune is not included on the "P" version is that there were not enough pins on the IC package to accommodate the AutoTune setting. When we developed the DRV8881P, we provided the option for parallel mode rather than AutoTune.

    Yes, the TRQx pins can be adjusted on the fly.