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BQ76200: quiescent current for EN pins

Part Number: BQ76200

Hello,

Our customer want to estimate quiescent current of bq76200.

In the datasheet, we can see BAT and PACK pin current, but there is no data for

EN pins (CHG_EN, CP_EN, DSG_EN, PCHG_EN, PMON_EN).

Could you show these EN pins input current ?

Thanks,

Hiro

  • Hi Hiro,

    The relevant specification for current into the enable pins is in the "INPUT ENABLE CONTROL SIGNALS", RPD Internal Pull Down.  It is 1M ohm nominal, so at 3V input there will be a 3 uA nominal load, at 12V input a 12 uA load. So at the system level if you are driving CHG_EN and DSG_EN at 12V, and CP_EN at 3V there will be a 27 uA nominal load from the inputs in addition to the system load from the supply current.  Part tolerance on the RPD will cause variation of course.

  • Hello WM5295-san,

    Thank you for quick replying.
    I understand that the quiescent current at enable pins can be estimated by only internal pull-down resistance.


    Thanks,
    Hiro