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BQ25306: BQ25306

Dharun Sangrithiyayan S
Prodigy 40 points
Part Number: BQ25306

Tool/software:

Hi Team,

I am using BQ25306 to charge 2 cell Li-ion battery, I'm using it as a standalone charger.

From the datasheet , i found the input current is mentioned as @3A. 

Is this a minimum requirement? I'm asking this because we are planning to use a micro USB connector for input.

Will it work for me or i have to go to Type-C?

Inputs on this will help me.

Regards,

Dharun S

  • 0
    TI__Mastermind 31370 points

    Hi Dharun, 

    Thank you for reaching out via E2E. The 3A input current is a maximum for the BQ25306 rather than a minimum. This is listed in table 8.3 of the datasheet. 

    Via a resistor connection at ICHG pin you can configure fast charge current to a lower value which is more appropriate for the current rating of your input supply. Maximum allowable resistor value for RICHG is 250kohms which corresponds to a charge current in the range of 150mA. 

    Best Regards,

    Garrett

  • 0 in reply to Garrett Kreger
    Prodigy 40 points

    Hi Garrett,

    Thanks for the response.

    Yes I have misinterpreted the 3A as a maximum. The problem is that we need minimum charge current of 2A.

    Is there any way to achieve this  using USB(which i think not possible).In that case is there any other IC you can recommend, we need a standalone charger IC.

  • 0 in reply to Dharun Sangrithiyayan S
    TI__Mastermind 31370 points

    Hi Dharun,

    The BQ25306 is a standalone charger IC which can support 2A charging. If your input adapter type cannot support 2A current draw then you will not be able to perform 2A charging. 

    Best Regards,

    Garrett