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Can BQ34110 and BQ34Z100-G1 do cell balance and gauge without Battery monitor,protection & Authentication solution IC such as BQ76940 or BQ76PL455

Siva Subramaniyam C N
Prodigy 140 points
Other Parts Discussed in Thread: BQ34110, BQ34Z100-G1, BQ76940, BQ40Z50-R2

Can  BQ34110 and BQ34Z100-G1 independently work to do cell balance and gauge without  Battery monitor,protection & Authentication solution IC such as BQ76940 or BQ76PL455

  • 0
    TI__Mastermind 25955 points
    Hi Siva,

    The bq34110 and bq34z100-G1 monitor the stack voltage and current of the pack, not the individual cell voltages.

    So for gauging, yes, these are strap-on-gauges that allow for gauging of the battery pack and reporting of state of charge either through a LED based readout or digitally to a a microcontroller/processor.

    For cell balancing, no, another device such as the bq76940 or bq76PL455 would be required.

    The bq40z50-r2 may be of interest, depending on your chemistry and stack voltage. The bq40z50-r2 provides per cell gauging and balancing for Li-Ion/Li-Polymer and LiFePO4 cells up to 4S.

    Sincerely,
    Bryan Kahler