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LM3150: soft-start time

K.Yaita
Guru 29720 points
Part Number: LM3150

Hi Team,

The datasheet shows the folowing about soft-start time.

(page 12)


What is occured if soft-start time is shorter than input voltage rise time?
*damage a device, unexpected operation etc.

Best Regards,
Yaita

  • 0
    TI__Mastermind 25590 points

    Yaita,

    We do not expect damage if soft-start time is shorter than input voltage rise time. You would see increased inrush current. Sort start reduces the instantaneous inrush current that's required to charge the output capacitors. A lower input voltage (like an input voltage which has not risen all the way) must source more current to deliver the same power.

    -Sam