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Bq24251 reset

Martin Dusek
Intellectual 340 points
Other Parts Discussed in Thread: BQ24251

Hello,

will setting Register2.Reset reset also Register1.Fault (and also buffered faults)?

After PG of Bq24251 goes low I reset Bq24251 (writing Register2.Reset with one) however even after reset, I'm still getting a Register1.Fault set to Input UVLO. Is that correct behaviour?

Martin

  • 0
    TI__Expert 7730 points

    Martin,

    Reset bit will not reset the Fault register as those are read only bits to reflect the current fault status. If your input power is below UVLO, you will always get the input Low fault. Once the input power is in the normal operation range, the Fault register needs to be read back twice to clear the fault status.

    Thanks,

    Wenjia