IRLR/U8743PbF 15V 1200 )J I m D ( y 1000 TOP 2.7A L DRIVER g V r DS e 3.7A n E BOTTOM 20A e 800 R h G D.U.T + cn - VDD I a AS A la 20V V v GS 600 t 0.01 A p Ω eslu Fig 12a. Unclamped Inductive Test Circuit P 400 elgniS V , 200 (BR)DSS S A tp E 0 25 50 75 100 125 150 175 Starting TJ , Junction Temperature (°C) Fig 12c. Maximum Avalanche Energy Vs. Drain Current IAS Fig 12b. Unclamped Inductive Waveforms R V D DS VGS D.U.T. RG +-VDD Current Regulator Same Type as D.U.T. VGS Pulse Width ≤ 1 µs Duty Factor ≤ 0.1 % 50KΩ .2µF 12V .3µF Fig 14a. Switching Time Test Circuit +V D.U.T. DS - VDS 90% VGS 3mA I I 10% G D V Current Sampling Resistors GS td(on) tr td(off) tf Fig 13. Gate Charge Test Circuit Fig 14b. Switching Time Waveforms 6 www.irf.com
