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IRF644NSTRLPBF Fiches technique(PDF) 7 Page - Vishay Siliconix |
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IRF644NSTRLPBF Fiches technique(HTML) 7 Page - Vishay Siliconix |
7 / 8 page Document Number: 91038 www.vishay.com S-Pending-Rev. A, 19-Jun-08 7 IRF644N, IRF644NS, IRF644NL, SiHF644N, SiHF644NS, SiHF644NL Vishay Siliconix Fig. 13a - Basic Gate Charge Waveform Fig. 13b - Gate Charge Test Circuit Fig. 14 - For N-Channel Vishay Siliconix maintains worldwide manufacturing capability. Products may be manufactured at one of several qualified locations. Reliability data for Silicon Technology and Package Reliability represent a composite of all qualified locations. For related documents such as package/tape drawings, part marking, and reliability data, see http://www.vishay.com/ppg?91038. Q GS Q GD Q G VG Charge V GS D.U.T. 3 mA V GS V DS I G I D 0.3 µF 0.2 µF 50 k Ω 12 V Current regulator Current sampling resistors Same type as D.U.T. + - 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 = 10 V* VDD ISD Driver gate drive D.U.T. ISD waveform D.U.T. VDS waveform Inductor current D = P.W. Period + - + + + - - - * VGS = 5 V for logic level devices and 3 V drive devices Peak Diode Recovery dV/dt Test Circuit VDD • dV/dt controlled by R G • ISD controlled by duty factor "D" • D.U.T. - device under test D.U.T Circuit layout considerations • Low stray inductance • Ground plane • Low leakage inductance current transformer RG |
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