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PHILIPS |
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6 page
9397 750 14606 © Koninklijke Philips Electronics N.V. 2005. All rights reserved. Product data sheet Rev. 06 — 4 April 2005 6 of 11 Philips Semiconductors PMLL4148L; PMLL4448 High-speed switching diodes 8. Test information Input signal: Reverse pulse rise time tr = 0.6 ns; reverse voltage pulse duration tp = 100 ns; duty factor δ≤ 0.05 Oscilloscope: Rise time tr = 0.35 ns (1) IR = 1 mA Fig 6. Reverse recovery time test circuit and waveforms Input signal: Forward pulse rise time tr = 20 ns; forward current pulse duration tp ≥ 100 ns; duty factor δ≤ 0.005 Fig 7. Forward recovery voltage test circuit and waveforms trr (1) + IF t output signal tr tp t 10 % 90 % VR input signal V = VR + IF × RS RS = 50 Ω IF D.U.T. Ri = 50 Ω SAMPLING OSCILLOSCOPE mga881 tr t tp 10 % 90 % I input signal RS = 50 Ω I Ri = 50 Ω OSCILLOSCOPE 1 k Ω 450 Ω D.U.T. mga882 VFR t output signal V |
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