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LM5156-Q1: Shutdown by COMP or SS

Kotaro Yamashita
Intellectual 2550 points
Part Number: LM5156-Q1
Other Parts Discussed in Thread: LM5156

Hi Team,

I'd like to achieve shutdown by COMP or SS pulled to GND. Is that possible?

For Redundancy, I'm looking for the way except UVLO pin. 

Regards,

Kotaro Yamashita

  • 0
    TI__Expert 7450 points

    Hi Kotaro,

    Thanks for your interest in LM5156.

    If you are considering the Boost, it is fine to use SS for shutdown. But note that the chip is still in run mode.

    If it is the Flyback, and when the FB gets to 0, it might not get completely shut down.

    Please let me know if you have further questions.

    Thanks,
    Yinsong