IRF540NS/IRF540NL 35 R V D DS 30 VGS D.U.T. R 25 G +-VDD 20 VGS Pulse Width ≤ 1 µs 15 Duty Factor ≤ 0.1 % I , Drain Current (A) D 10 Fig 10a. Switching Time Test Circuit V 5 DS 90% 025 50 75 100 125 150 175 T , Case Temperature ( C ° ) C 10% Fig 9. Maximum Drain Current Vs. VGS Case Temperature td(on) tr td(off) tf Fig 10b. Switching Time Waveforms 10 ) thJC (Z 1 D = 0.50 esponse 0.20 0.10 PDM al R 0.1 m 0.05 t1 0.02 SINGLE PULSE t (THERMAL RESPONSE) 2 Ther 0.01 Notes: 1. Duty factor D = t / t 1 2 2. Peak TJ= P DM x ZthJC + TC 0.01 0.00001 0.0001 0.001 0.01 0.1 1 t , Rectangular Pulse Duration (sec) 1 Fig 11. Maximum Effective Transient Thermal Impedance, Junction-to-Case www.irf.com 5
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