IRFP450, SiHFP450 Vishay Siliconix Fig. 12c - Maximum Avalanche Energy vs. Drain Current Current regulator Same type as D.U.T. Q 50 kΩ G 10 V 12 V 0.2 µF 0.3 µF Q Q GS GD + V D.U.T. DS - VG VGS 3 mA Charge I I G D Current sampling resistors Fig. 13a - Basic Gate Charge WaveformFig. 13b - Gate Charge Test Circuit www.vishay.com Document Number: 91233 6 S-81271-Rev. A, 16-Jun-08