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BQ21040: bq21040

Ian Wang
Mastermind 30220 points

Part Number: BQ21040

Hi Sir,

Do we have bq21040 charging current distribute fig.?

Customer would like to know charging current distribute fig. under specific condition.

Due to spec. shows 10% is too rush, it only difference 10~15mA in customer production.

Condition: 490mA , Input 5V  , VBAT 3.8V  25 degree C.

Thanks, Ian.

  • 0
    TI__Guru* 78696 points

    Hello Ian

    Our specification is about 10% (Kiset) over temp, 0C – 125C and production runs.

    If measured at room temp over limited runs 3% is about right.

     

    The Kiset is the accuracy of ISET current mirror, sample ratio of output current. Also accuracy of the Ref voltage.

    Kiset is more accurate at high current 500mA vs low current 50mA.