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TPS62825: Output discharge

Jeff YANG
Mastermind 7795 points
Part Number: TPS62825

Tool/software:

Hi,

May I know the Output discharge more detail?

Seem it no fixed current, would you please explain about the working principle of resistance variation? thank you!

Jeff

  • 0
    TI__Mastermind 25430 points

    Hello Jeff,

    For active output discharge, a transistor is used to sink current.

    During shutdown, the internal power MOSFETs as well as the entire control circuitry are turned off and the output voltage is actively discharged through the SW pin by a current sink. Therefore VIN must remain present for the discharge to function.

    I hope this helps.

    Thanks,

    Febin