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TPS23754: TPS23754 for LINE UV function

KUO WENYUNG
Intellectual 285 points
Part Number: TPS23754
Other Parts Discussed in Thread: TPS23731

Tool/software:

Hi TIer,

May I know the TPS23754/6/1 can archive the line undervoltage soft-stop protection by external circuits? please help provide the reference circuit.

we need option for this protection with ACF, but we don't prefer change solution to TPS23731/4. 

  • 0
    TI__Mastermind 37061 points

    Hi Kuo,

    Thanks for reaching out!

    You may clamp the gate output duty cycle of GATE pins by clamping the CTL pin voltage at power off. Or you can adjust the secondary side error amplifier resistor divider and make Vout lower than normal Vout at power off. But I feel they may not be a very precise control method. 

    Best regards,

    Diang