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BQ24610: BQ24610 support 6 cell charger?

user3830479
Expert 1090 points
Part Number: BQ24610

Dear all:

    If we used BQ24610 for 6Cell Li-Lon charger, the input voltage will up to 25V? but BQ24610 only support up to 28V,  Is there any risk?  thanks!

  • 0
    TI__Mastermind 24075 points

    Hi User,

        BQ24610 can support 6 cell Li-ion battery charging. When designing or debugging, keep in mind the SLEEP threshold specification of the datasheet, where charge will stop if VCC is too close to SRN (this is buck charger, so input voltage should be higher than output voltage), as well as the difference between max charge regulation voltage and nominal charge regulation voltage. You can refer to section 11. Power Supply Recommendations of the datasheet for input voltage based off of your battery voltage. For 25.2V (assuming 6 cell Li-ion at 4.2V per cell) input voltage of 27V to 28V is recommended. Also 28V is recommended operating condition and not abs. max which is 33V.