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IRFH5250DPBF Datasheet(PDF) 6 Page - International Rectifier |
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IRFH5250DPBF Datasheet(HTML) 6 Page - International Rectifier |
6 / 9 page IRFH5250DPbF 6 www.irf.com © 2015 International Rectifier Submit Datasheet Feedback June 23, 2015 Fig 15. Peak Diode Recovery dv/dt Test Circuit for N-Channel HEXFET® Power MOSFETs Fig 18a. Gate Charge Test Circuit Fig 18b. Gate Charge Waveform Vds Vgs Id Vgs(th) Qgs1 Qgs2 Qgd Qgodr 1K VCC DUT 0 L S Fig 16b. Unclamped Inductive Waveforms Fig 16a. Unclamped Inductive Test Circuit tp V(BR)DSS IAS RG IAS 0.01 Ω tp D.U.T L VDS + - VDD DRIVER A 15V 20V Fig 17a. Switching Time Test Circuit Fig 17b. Switching Time Waveforms V GS V DS 90% 10% t d(on) t d(off) t r t f VDS Pulse Width ≤ 1 µs Duty Factor≤ 0.1 RD VGS RG D.U.T. 10V + -VDD VGS CircuitLayoutConsiderations • Low Stray Inductance • Ground Plane • LowLeakageInductance Current Transformer P.W. Period di/dt Diode Recovery dv/dt Ripple ≤ 5% Body Diode Forward Drop Re-Applied Voltage Reverse Recovery Current Body Diode Forward Current VGS=10V VDD ISD Driver Gate Drive D.U.T. ISD Waveform D.U.T. VDS Waveform Inductor Curent D = P.W. Period * VGS = 5V for Logic Level Devices * + - + + + - - - RG VDD • dv/dt controlled by RG • Driver same type as D.U.T. • ISD controlled by Duty Factor "D" • D.U.T. - Device Under Test D.U.T |
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