AN3328, Typical hot-swap controller circuit with addition of Q1 increases the gate-pulldown current, limiting the short-circuit current duration to less than 0.5ms

AN3328, Typical hot-swap controller circuit with addition of Q1 increases the gate-pulldown current, limiting the short-circuit current duration to less than 0.5ms. The apparent reverse overshoot current and the steep rise is created by parasitic series inductance in the sense resistor chip, and the leading-edge oscillation is an artifact introduced by the oscilloscope ground lead