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how to bypass BQ24737

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    how to bypass BQ24737

    I need to somehow bypass BQ24737 to work normal. it have ADP and ACOK pins. does anybody know their operating states/voltages/?

    #2
    Re: how to bypass BQ24737

    What do you mean by "bypass"? Charger IC is required to charge battery and control MOSFET to switch between AC and battery power.
    ACOK should be 0V on bq24737 when AC adapter is connected, there is no ADP pin.
    OpenBoardView — https://github.com/OpenBoardView/OpenBoardView

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      #3
      Re: how to bypass BQ24737

      I have actually managed to make a board working without the charger IC.

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        #4
        Re: how to bypass BQ24737

        Originally posted by Luaina View Post
        I have actually managed to make a board working without the charger IC.
        What board and what u do to make this bypass?

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          #5
          Re: how to bypass BQ24737

          Originally posted by ktmmotocross View Post
          I need to somehow bypass BQ24737 to work normal. it have ADP and ACOK pins. does anybody know their operating states/voltages/?
          I don't understand well your idea, you want to use bq24737 only in Ac or use it in your project ? bypass usually means to exclude the chip with no battery.
          You can use the bq24735 datasheet , for some resistive divider the value of resistors can change but hte result is the same you can check this readinta a schematic
          or boardiview that contains this chip
          Last edited by jasko_jacker; 07-15-2020, 02:26 PM.

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            #6
            Re: how to bypass BQ24737

            I have burned component on board with no schematic or bv, so i want to make it work

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              #7
              Re: how to bypass BQ24737

              In my opinion, two possibility.
              Or you connect direct 19V to B+ (and eclude or remove battery ) or force the two first mosfet to conduct with a resistor between the gates and 19v to allow the 19V to flow to B+. Remove all charge mosfets and the switch mosfet.
              Attached Files

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