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BQ76930: Bq76930 Why OCD occurs，CHG disabled?

Qianqian
Genius 5010 points
Part Number: BQ76930

Hello,TI Experts

Now I am using MCU+bQ76930，their is a phenominon that when OCD occur, CHG will be disabled~but I want that when OCD occurs，CHG is still abled~

registers are as below:

Hope for your kindly help.thank you very much~
  • 0
    TI__Guru 54715 points
    Hi Fawn,
    The IC does not do that, it changes the DSG to off as shown in the second group of readings. I don't know the source of your log. Check to see if your MCU is writing CHG off during the 258 ms between reads of register 5. An MCU might typically turn off CHG so it can check for the Load_Present status.
  • 0 in reply to WM5295
    Genius 5010 points
    Thank you very much for your help~We have found the reason according to your answer~ software sets the CHG protection after OCD~