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recommendation for lithium ion battery pack ic charger

AIED BEBAR
Intellectual 680 points
Other Parts Discussed in Thread: BQ25616, BQ25611, BQ25887, BQ25713

hii , i need a recommendation for an lithium ion  battery pack charger IC, my BAT pack with voltage of 3.7 volts and capacity of around 3 up to 5 AH 

i need at the same time to be able to charge my battery pack and drive a system from the battery pack through your charger IC .

my input voltage to the charger IC can be up to 6 volts 

my system needs about up to 3 amps and operates with a voltage of 3.7 

  • 0
    TI__Guru**** 166576 points

    Hi AIED,

    Since we do not make battery packs, we typically do not recommend battery packs.  Tenergy makes several packs of different shapes and capacities.

    For charging, I can recommend the BQ25616 3-A standalone charger or the 3-A BQ25611 I2C register charger if you have a host processor.

    Regards,

    Jeff

  • 0 in reply to Jeff F
    Intellectual 680 points

    hii , thanks for your reply can you recommend me a chip whit 2 cell li-ion charger that can do a balancing between cells

    and another chip that can charge up to 4 cells with aballancing between cells

  • 0 in reply to AIED BEBAR
    TI__Guru**** 166576 points

    Hi AIED,

    For 2 series cells and input voltage <= 6V, you can use BQ25887 host controlled boosting charger IC with integrated passive cell balancing.

    For 4 series cells and low input voltage, I can recommend BQ25713 buck-boost charger with external FETs.  You will need a separate cell balancing IC.  I am not an expert on cell balancing ICs so I suggest submitting another post asking about a 4 cell LiIon cell balancer.  Many of they balancers are also protectors.

    Regards,

    Jeff