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TPS7B4250-Q1: Is output current clamped to "output current limitation" if short circuit condition?

Yoshiki Ochi
Expert 8165 points
Part Number: TPS7B4250-Q1

Hi team, 

Is output current clamped to "Output current limitation IOUT(LIM) " if short circuit condition? In this case, does  IOUT(LIM) continue to flow until its thermal shutdown?

Regards,
Ochi

  • +1
    TI__Genius 12070 points

    Hello Ochi,

                     Yes, the device will hit current limit under a output short circuit condition. The output current will clamp to this current limit value (Brick wall type characteristic). If the power dissipation ((VIN - VOUT)*ILIM) is significant enough to raise the junction temperature to ~175ºC, the device will then hit Thermal shutdown. Thanks!

    Regards,

    Srikanth