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Recommendation for charger IC with integrated battery monitoring feature

Other Parts Discussed in Thread: BQ25798, BQ40Z50, BQ40Z60

Hi all,

I have a customer who is looking for a charger IC with integrated battery monitoring (They want to capture battery capacity (mAh),state-of-charge (%), runtime to empty (minutes)). The supply will be coming from solar input or battery and their charging current will be around 1A.

I proposed BQ25798 but it does not have the battery monitor feature that they want, do you have any other devices that meet these requirement? 

Thank you.

  • Hello Ernest,

    The only device we have the supports charging and gauging in the same package is the BQ40Z60, I would still recommend using different ICs for charger and gauge since it allows more flexibility on the system level if needed. The BQ40Z50 is the flagship gauge which is used for 1-4s applications.

    Sincerely,

    Wyatt Keller

  • Hi Ernest,

    Any charger with an integrated ADC can be used to generate SOC, we have an app note on this here: www.ti.com/.../sluaaa1.pdf

    If customer needs battery capacity + runtime they are better off using a gauge. Currently we do not have any recommended solution for an all in one battery + fuel gauge. 

    Best regards,

    Nick