• State TI Thinks Resolved
  • Locked Locked
  • Replies 1 reply
  • Answers 1 answer
  • Subscribers 29 subscribers
  • Views 543 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.

DRV8872: nFault driven low problem

Gene Qiu
Intellectual 1720 points
Part Number: DRV8872
Other Parts Discussed in Thread: DRV8801, , DRV8881

Hi Team,

Compared to DRV8801, there is no VBBNFR for the VBB nFault release, then is it right that VBB>6V then nFault release

Best regards

Gene

  • 0
    TI__Guru** 114905 points
    Hi Gene,

    The DRV8872 has an undervoltage protection similar to the DRV8801.

    An undervoltage fault occurs as VM drops below 6.4V maximum. The device is then disabled until VM rises to 6.5V max. Once VM rises above 6.5V, the DRV8881 is re-enabled. Please see section 7.3.12 of the datasheet for details.