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MJE13009 Datasheet(PDF) 6 Page - Unisonic Technologies |
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MJE13009 Datasheet(HTML) 6 Page - Unisonic Technologies |
6 / 9 page MJE13009 NPN SILICON TRANSISTOR UNISONIC TECHNOLOGIES CO., LTD 6 of 9 www.unisonic.com.tw QW-R203-024,F TABLE 3. TYPICAL INDUCTIVE SWITCHING PERFORMANCE IC(A) TC(℃) tSV(ns) tRV(ns) tFI(ns) tTI(ns) tC(ns) 3 25 100 770 1000 100 230 150 160 200 200 240 320 5 25 100 630 820 72 100 26 55 10 30 100 180 8 25 100 720 920 55 70 27 50 2 8 77 120 12 25 100 640 800 20 32 17 24 2 4 41 54 SWITCHING TIME NOTES In resistive switching circuits, rise, fall, and storage times have been defined and apply to both current and voltage waveforms since they are in phase. However, for inductive loads which are common to SWITCHMODE power supplies and hammer drivers, current and voltage waveforms are not in phase. Therefore, separate measurements must be made on each waveform to determine the total switching time. For this reason, the following new terms have been defined. tSV = Voltage Storage Time, 90% IB1 to 10% VCEM tRV = Voltage Rise Time, 10–90% VCEM tFI = Current Fall Time, 90–10% ICM tTI = Current Tail, 10–2% ICM tC = Crossover Time, 10% VCEM to 10% ICM An enlarged portion of the turn–off waveforms is shown in Fig. 13 to aid in the visual identity of these terms. For the designer, there is minimal switching loss during storage time and the predominant switching power losses occur during the crossover interval and can be obtained using the standard equation from AN–222: PSWT = 1/2 VCCIC(tC) f Typical inductive switching waveforms are shown in Fig. 14. In general, tRV + tFI ≈ tC. However, at lower test currents this relationship may not be valid. As is common with most switching transistors, resistive switching is specified at 25 and has become a ℃ benchmark for designers. However, for designers of high frequency converter circuits, the user oriented specifications which make this a “SWITCHMODE” transistor are the inductive switching speeds (tC and tSV) which are guaranteed at 100 . ℃ |
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