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BQ25751: Battery charging voltage and charging current

park jiho
Prodigy 40 points
Part Number: BQ25751

Tool/software:

1. When the input voltage of the BQ25751 IC is 48V and 4 batteries (12V12Ah) are connected in series to the output terminal for charging, can the maximum charging voltage and charging current values ​​be set?

2. If I can set the battery charging voltage and current, can I do so simply by changing the resistance value around the IC?

  • 0
    TI__Mastermind 31946 points

    Hello Park,

    park jiho said:
    1. When the input voltage of the BQ25751 IC is 48V and 4 batteries (12V12Ah) are connected in series to the output terminal for charging, can the maximum charging voltage and charging current values ​​be set?

    I'm not too shure what you are asking, but this is a buck-boost charger, so you can use an input of 48V to charge 4 batteries (12V12Ah)

    park jiho said:
    2. If I can set the battery charging voltage and current, can I do so simply by changing the resistance value around the IC?

    Yes, you can set the charge voltage and charge current using hardware.

    Best Regards,

    Christian.