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BQ24610: BQ24610

Bosco N
Prodigy 90 points
Part Number: BQ24610
Other Parts Discussed in Thread: BQ25750, BQ25756

Tool/software:

Hi,

I have a LiFePO₄ battery with below spec

10S 1P
Max vg: 36.5v
Min vg: 28.5v
Discharge rate: 2c (30A)
15Ah

DC-I/p 24V

Can you please suggest a charger IC?

  • 0
    TI__Mastermind 31751 points

    Hello Bosco,

    Based on these requirements, you will need a buck-boost charger that can charge up to 10s batteries.

    I would recommend using BQ25756 or BQ25750.

    • BQ25750-Has direct power path for system loads
    • BQ25756-Does not direct power path for system loads

    Best Regards,

    Christian

  • 0 in reply to Christian Moyer
    Prodigy 90 points

    Hi Christian,

    Thanks.

    I see BQ25750 i/p mentioned as VAC. hope DC can be given?

    With BQ25750 device, if the input power is off, then the battery will take over automatically, right?

    In BQ25750 EVM, schematic wanted to know what will be the voltage at these points = BAT_DRV, HIDRV2

    Please clarify the above points.

  • 0 in reply to Bosco N
    TI__Mastermind 31751 points

    Hello Bosco,

    Bosco N said:
    I see BQ25750 i/p mentioned as VAC. hope DC can be given?

    Yes,  it takes DC. The name is a little confusing.

    Bosco N said:
    With BQ25750 device, if the input power is off, then the battery will take over automatically, right?

    Yes, the system will be powered automatically through the BATFET, system voltage will be proportional to battery voltage. You can also enable reverse mode/ auto reverse to boost/ buck down the system voltage through the converter.

    Bosco N said:
    In BQ25750 EVM, schematic wanted to know what will be the voltage at these points = BAT_DRV, HIDRV2

    When BATDRV is enabled, BATDRV will be 10V higher the BATSRC. When disable, the BATDRV will be the same as BATSRC.

    HIDRV2- This is a switching gatedrive, so the voltage will vary.

    Best Regards,

    Christian.

  • 0 in reply to Christian Moyer
    Prodigy 90 points

    Thanks, Christian.