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BQ30Z554-R1: Permanent -CB threshold and delay

Tom Tsao
Expert 1960 points
Part Number: BQ30Z554-R1


Tool/software:

Hi E2E,

Please explain in detail the specific working behavior of the three parameters CB-Max Threshold, CB-Delta Threshold, and CB-Delay as described in the TRM page100.

Something like If CB-Max Threshold is set to 120, does it mean that if balancing cannot be completed within 240 hours, it will trigger a PF?

I need more detail about these paramerters.

www.ti.com/.../sluua79.pdf

  • 0
    TI__Guru 64266 points

    The gauge throws a CB PF Alert and eventually CB PF Status if:

    * PF Status: The max. cell balancing time takes more than 2xCB Max Threshold seconds

    * PF Alert: The max. difference between cell balancing times (max. time - min. time for all cells) is more than 2xCB Delta Threshold seconds

    * PF Status: The gauge was in PF Alert for >= CB Delay cycles.