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IRF6637PBF Datasheet(PDF) 3 Page - International Rectifier |
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IRF6637PBF Datasheet(HTML) 3 Page - International Rectifier |
3 / 10 page IRF6637PbF www.irf.com 3 Fig 3. Maximum Effective Transient Thermal Impedance, Junction-to-Ambient 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). 1E-006 1E-005 0.0001 0.001 0.01 0.1 1 10 100 t1 , Rectangular Pulse Duration (sec) 0.01 0.1 1 10 100 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 Zthja + Tc Ri (°C/W) τi (sec) 0.6676 0.000066 1.0462 0.000896 1.5611 0.004386 29.282 0.68618 25.455 32 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= τi/Ri Ci= τi/Ri τ τ C τ 4 τ 4 R 4 R 4 τ 5 τ 5 R 5 R 5 Mounted to a PCB with small clip heatsink (still air) Mounted on minimum footprint full size board with metalized back and with small clip heatsink (still air) τA Absolute Maximum Ratings Parameter Units PD @TA = 25°C Power Dissipation e W PD @TA = 70°C Power Dissipation e PD @TC = 25°C Power Dissipation f TP Peak Soldering Temperature °C TJ Operating Junction and TSTG Storage Temperature Range Thermal Resistance Parameter Typ. Max. Units RθJA Junction-to-Ambient el ––– 55 RθJA Junction-to-Ambient jl 12.5 ––– RθJA Junction-to-Ambient kl 20 ––– °C/W RθJC Junction-to-Case fl ––– 3.0 RθJ-PCB Junction-to-PCB Mounted 1.0 ––– Linear Derating Factor eà W/°C 1.5 0.018 270 -40 to + 150 Max. 42 2.3 |
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