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IRGP4068DPbF/IRGP4068D-EPbF 6 www.irf.com Fig 19. Maximum Transient Thermal Impedance, Junction-to-Case (IGBT) Fig. 20. Maximum Transient Thermal Impedance, Junction-to-Case (DIODE) 1E-006 1E-005 0.0001 0.001 0.01 0.1 1 t1 , Rectangular Pulse Duration (sec) 0.0001 0.001 0.01 0.1 1 10 0.20 0.10 D = 0.50 0.02 0.01 0.05 SINGLE PULSE ( THERMAL RESPONSE ) Notes: 1. Duty Factor D = t1/t2 2. Peak Tj = P dm x Zthjc + Tc τ J τ J τ 1 τ 1 τ 2 τ 2 τ 3 τ 3 R 1 R 1 R 2 R 2 R 3 R 3 Ci i /Ri Ci= τi/Ri τ τ C τ 4 τ 4 R 4 R 4 Ri (°C/W) τi (sec) 0.0400 0.000030 0.7532 0.000717 0.8317 0.004860 0.3766 0.036590 1E-006 1E-005 0.0001 0.001 0.01 0.1 1 t1 , Rectangular Pulse Duration (sec) 0.001 0.01 0.1 1 0.20 0.10 D = 0.50 0.02 0.01 0.05 SINGLE PULSE ( THERMAL RESPONSE ) Notes: 1. Duty Factor D = t1/t2 2. Peak Tj = P dm x Zthjc + Tc τ J τ J τ 1 τ 1 τ 2 τ 2 τ 3 τ 3 R 1 R 1 R 2 R 2 R 3 R 3 Ci i /Ri Ci= τi/Ri τ τ C τ 4 τ 4 R 4 R 4 Ri (°C/W) τi (sec) 0.0248 0.000014 0.0652 0.000050 0.1537 0.001041 0.2065 0.013663 |
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