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BQ25790: Choosing the Correct Balancer and Gauge

Moh Unni
Prodigy 60 points
Part Number: BQ25790
Other Parts Discussed in Thread: BQ40Z50-R2, BQ40Z60

Please see our Block Diagram Above. Do you have a TI Reference Schematic/Design/PCB that already implements the following Battery Management System OR "major portions" of this concept? I prefer a Buck-Boost-Charger solution. We are using 4S1P 18650- batteries. Please advise.

  • 0
    TI__Guru** 104835 points

    Hello Moh,

    The bq40z50-r2 is able to gauge and cell balance up to 4S systems. Another option is the bq40z60 which has an integrated synchronous buck charger with fuel gauging and balancing.

    As far as reference designs for the full system or parts of it I'm not aware of any of any, I would reference the EVM schematics of the chips you plan to use.

    Sincerely,

    Wyatt Keller