IRF530N 200 1 5V L D R IV E R V D S ID TOP 3.7A 6.4A 160 BOTTOM 9.0A R G D .U .T + 120 V - D D IA S A 2 0 V V GS t 0 .0 1 p Ω 80 Fig 12a. Unclamped Inductive Test Circuit 40 V (B R )D SS tp ASE , Single Pulse Avalanche Energy (mJ) 0 25 50 75 100 125 150 175 Starting T , Junction Temperature ( C) ° J Fig 12c. Maximum Avalanche Energy Vs. Drain Current I AS Fig 12b. Unclamped Inductive Waveforms Current Regulator Same Type as D.U.T. 50KΩ .2µF 12V QG .3µF + VGS V D.U.T. DS - QGS QGD VGS VG 3mA I I G D Charge Current Sampling Resistors Fig 13a. Basic Gate Charge Waveform Fig 13b. Gate Charge Test Circuit 6 www.irf.com