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BQ24260 application question

Chen Bogey8
Mastermind 9990 points

Dear Sir

Good days,

May we keep Vsys voltahe can keep 5V when we removed wall Adapter?

or we have other charger IC can support this function?

Our System side is request 5V/2A load.

                                             Best regards, 

                                                         Bogey

 

 

  • 0
    TI__Genius 13700 points

    Hello Bogey,

    The voltage seen on Vsys is explained in Pg. 6 of the datasheet with tolerances.

    When the adapter is removed the voltage on the SYS pin is the basically the battery voltage.

    If you want to have 5V@2A for your system you will need to have a downstream boost regulator. to boost the voltage on the SYS pin when your adapter is connected and to boost the battery voltage when it is running off the battery.