IRFZ46N 350 J) 15V m ID ( TOP 11A gy 300 20A BOTTOM 28A L DRIVER ner VDS 250 R G D.U.T + 200 V - DD alanche E IAS A v 20V e A 150 t 0.01Ω p ls u Fig 12a. Unclamped Inductive Test Circuit 100 ingle P V(BR)DSS 50 tp , S E AS 0 25 50 75 100 125 150 175 Starting T , Junction Temperature( C ° ) J Fig 12c. Maximum Avalanche Energy Vs. Drain Current IAS 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