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TPS1HB16-Q1: Turn-off time under current limit

Andy Snawerdt
Intellectual 1740 points
Part Number: TPS1HB16-Q1

Hi Team,

I was looking through this devices datasheet and noticed the below portion in the current limit section of the d/s.

If I was performing a worst-case circuit analysis for the power dissipated within the device, would I ONLY need to consider this deglitch time, or would I also need to assume the turn-off time of the device itself, which seems to have a worst case value of 235us:

Regards,

Andy

  • +1
    TI__Mastermind 32650 points

    Hi Andy,

    In the event of a current limit fault, the device turns off in 3us, i.e, responds to the current limit and stops current flow from input to output.

    There is no quick output discharge for this device so the actual output voltage drop is dependent on the RC characteristics of the load/short condition. (usually quick since R is very low during a short event)

    Thanks,

    Shreyas