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TPA3116D2: TPA3116 POP

Darren Yang
Expert 2000 points
Part Number: TPA3116D2


Hi sir

we use TPA3116 meet pop when power off, could you help check it and give some suggetions,our SCH is design follow the datasheet ,tks!

  • 0
    TI__Expert 6295 points

    hello Darren,

      

    In order to minimize the power turn off pop. Suggest to Shutdown amplifier first (SDZ 1--->0) then power down PVCC.

    If without a GPIO to control SDZ, you can just use circuit like attached file (PVCC=12V), this circuit will minimize the Power on and Power off Pop/click.

    regards

    Linda