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IRF7749L2TR1PBF Datasheet(PDF) 3 Page - International Rectifier |
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IRF7749L2TR1PBF Datasheet(HTML) 3 Page - International Rectifier |
3 / 11 page IRF7749L2TR/TR1PbF www.irf.com 3 Fig 3. Maximum Effective Transient Thermal Impedance, Junction-to-Case Surface mounted on 1 in. square Cu board, steady state. TC measured with thermocouple incontact with top (Drain) of part. Used double sided cooling, mounting pad with large heatsink. Notes: Mounted on minimum footprint full size board with metalized back and with small clip heatsink. Rθ is measured at TJ of approximately 90°C. Surface mounted on 1 in. square Cu board (still air). Mounted on minimum footprint full size board with metalized back and with small clip heatsink. (still air) Absolute Maximum Ratings Parameter Units PD @TC = 25°C Power Dissipation f W PD @TC = 100°C Power Dissipation f PD @TA = 25°C Power Dissipation c TP Peak Soldering Temperature °C TJ Operating Junction and TSTG Storage Temperature Range Thermal Resistance Parameter Typ. Max. Units RθJA Junction-to-Ambient e ––– 45 RθJA Junction-to-Ambient j 12.5 ––– RθJA Junction-to-Ambient k 20 ––– °C/W RθJ-Can Junction-to-Can fl ––– 1.2 RθJ-PCB Junction-to-PCB Mounted ––– 0.5 270 -55 to + 175 Max. 3.3 125 63 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) 0.10804 0.000171 0.61403 0.053914 0.45202 0.006099 0.00001 0.036168 |
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