IRF4905S/L L VDS 600 )J RG D.U.T V m I DD ( D y I A 500 TOP -17A AS gr DRIVER -20V e -30A n t 0.01 p Ω E BOTTOM -42A e 400 hcnalav 300 A 15V esluP 200 e Fig 12a. Unclamped Inductive Test Circuit lgni I S AS 100 , S AE 0 25 50 75 100 125 150 Starting TJ, Junction Temperature (°C) tp V(BR)DSS Fig 12c. Maximum Avalanche Energy Fig 12b. Unclamped Inductive Waveforms Vs. Drain Current QG 3.6 10V QGS QGD ) V( e VG ga 3.2 tloV dl Charge oh ID = -250µA Fig 13a. Basic Gate Charge Waveform ser 2.8 h Current Regulator t Same Type as D.U.T. etaG ) 50KΩ ht( 2.4 .2µF 12V S .3µF GV - - V D.U.T. + DS 2.0 VGS -75 -50 -25 0 25 50 75 100 125 150 -3mA TJ , Temperature ( °C ) I I G D Current Sampling Resistors Fig 13b. Gate Charge Test Circuit Fig 14. Threshold Voltage Vs. Temperature 6 www.irf.com
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