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About bq24040 (or other parts) parallel connection.

Satoshi
Guru 19485 points
Other Parts Discussed in Thread: BQ24040

Can bq24040 use the battery of three cells by parallel connection?


※Li-Poly, 3.7V, 50mAhx3
　The battery of three cells is the same product
 

If there are an application note and a success story when it can use, please let me know.

Best Regards,

Satoshi

  • 0
    TI__Genius 13700 points

    Hello Satoshi,

    The BQ24040 can be used in many different 1S battery pack configuration charging solutions. This includes a 1S3P application if the charging voltage and current parameters can be matched between the charger and batteries.

    One important thing is to have the batteries at the same voltage when they are configured in parallel so that there is not a rapid charge transfer from disparate voltages.

    I have not found an explicit app note but the solution should be the same described in the datasheet.

    Let me know if understood your question correctly and if you have any others.