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BQ25713: Charging a Lead Acid Battery

David Leskowicz
Prodigy 20 points
Part Number: BQ25713

Hi, just starting to look into what that BQ25713 chip can do.  Is it possible to charge a Lead Acid battery with it?  On first reading of the documentation its not clear to me how to set the transition points.

Looking to get a profile similar to what is described in this post 

https://e2e.ti.com/support/power-management/f/196/t/778283

-dave

  • 0
    TI__Mastermind 25800 points
    Hey David,

    The BQ25713 is a charge controller, which allows flexibility to control the charge profile for different battery chemistries and configurations.

    To achieve the profile you are referencing in that e2e post, you will need a host controller to implement the control side and program the charging current and charging voltage as well as disable charge when you reach various stages in the referenced charge profile.

    You can utilize the integrated 8-bit ADC to monitor the battery voltage and the charge current and use your host controller with a simple state machine to make decisions based on this.


    Regards,
    Joel H