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BQ76940: 27s BMS

Part Number: BQ76940
Other Parts Discussed in Thread: BQ76930

Dear sir or Madam:

        I  would like to design a 27S   battery pack, may I  use what scheme is appropriate? which chip scheme is appropriate?Is  BQ76940 suitable for 27S battery management?

        How to design a 27S battery management, please give advice. Thank you very much.

  • Hi,

    The BQ76940 can work for this project, but you will need to stack two of these devices since they support up to 15 cells each. TIDA-01093 is the best reference design to use as an example. This reference design stacks two BQ76930 (10s) to create a 20s pack. Many users have used this as an example to stack two BQ76940 devices in the same way.

    Best regards,

    Matt