• State
  • Locked Locked
  • Replies 1 reply
  • Subscribers 30 subscribers
  • Views 696 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.

DRV8711: DRV8711 sleep mode and ENBL setting

Frank Xiao
Genius 12055 points
Part Number: DRV8711

Hi team,

My customer is evaluating the DRV8711 now. When the motor is stable, they want to set it into low power mode. Fromt the datasheet, the chip has sleep mode, and make some description. And the datasheet also says we can use ENBL to disable the motor. So we want to check for ENBL, which part of the chip are disabled and the power consumption is what level compared with sleep mode. (The customer uses Microstepping Indexer)

When we set the chip in sleep mode or ENBL, if we set back to normal mode again, will the motor lose step?

Thanks.

BR

Frank

  • 0
    TI__Guru** 114905 points
    Hi Frank,

    Assuming the motor did not move when the DRV8711 is placed into sleep mode or disabled:

    If the device is set into sleep mode, the indexer will reset to full step position 1 when awakened and re-enabled.

    If the device is set to disable the motor, the indexer remains at the current position. When re-enable, the motor should not move.

    For sleep mode, the device can be awakened. If the step position is known when the device enters sleep, a series of step pulses can be issued to set the indexer to the last known position. The DRV8711 can then be enabled. This should prevent the motor from moving.