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BQ76952: STATUS OF CELL BALANCING AFTER I2C COMMUNICATION BREAK BETWEEN BQ IC & HOST CONTROLLER.

deepak kumar
Prodigy 230 points
Part Number: BQ76952

Hi TI Team,

                   Currently i am using BQ7695202 BMS IC for our project. I want to ask one question that if host controller send the 5 cell balancing command to BQ IC & BQ IC start cell balancing of 5 cells. After that if I2C communication is break between BQ IC & host microcontroller. Then Cell balancing remain active or cell balancing will be stop by BQ IC??  Please clarify.

Thanks with regards,

DEEPAK   

  • +1
    TI__Mastermind 42060 points

    Hello Deepak,

    Eventually the cell balancing will timeout and balancing will stop, based on the Settings:Cell Balancing Config:Cell Balance Interval setting.

    The host has to re-issue the command to balance cells before this timer finishes to continue balancing, so if there's any I2C communication break between the BQ IC and MCU, balancing will eventually stop.

    Best Regards,

    Luis Hernandez Salomon