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BD243CG Scheda tecnica(PDF) 3 Page - ON Semiconductor |
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BD243CG Scheda tecnica(HTML) 3 Page - ON Semiconductor |
3 / 6 page BD243B, BD243C (NPN) BD244B, BD244C (PNP) http://onsemi.com 3 Figure 2. Switching Time Test Circuit 2.0 0.06 Figure 3. Turn−On Time IC, COLLECTOR CURRENT (AMP) 1.0 0.7 0.5 0.3 0.1 0.07 0.02 0.1 0.2 0.4 0.6 2.0 6.0 td @ VBE(off) = 5.0 V TJ = 25°C VCC = 30 V IC/IB = 10 + 11 V 0 VCC - 30 V SCOPE RB - 4 V tr, tf v 10 ns DUTY CYCLE = 1.0% RC tr 0.03 0.05 1.0 4.0 D1 MUST BE FAST RECOVERY TYPE eg. 1N5825 USED ABOVE IB [ 100 mA MSD6100 USED BELOW IB [ 100 mA 25 ms - 9.0 V D1 51 RB AND RC VARIED TO OBTAIN DESIRED CURRENT LEVELS 0.2 Figure 4. Thermal Response t, TIME OR PULSE WIDTH (ms) 1.0 0.01 0.01 0.7 0.5 0.3 0.2 0.1 0.07 0.05 0.03 0.02 0.02 0.05 0.1 0.2 0.5 1.0 2.0 5.0 10 20 50 100 200 1000 500 RqJC(max) = 1.92°C/W D CURVES APPLY FOR POWER PULSE TRAIN SHOWN READ TIME AT t1 TJ(pk) - TC = P(pk) RqJC(t) P(pk) t1 t2 DUTY CYCLE, D = t1/t2 D = 0.5 SINGLE PULSE 0.2 0.05 0.1 0.02 0.01 SINGLE PULSE 0.03 0.3 3.0 30 300 SECOND BREAKDOWN LIMITED BONDING WIRE LIMITED THERMAL LIMITATION @ TC = 25°C CURVES APPLY BELOW RATED VCEO 10 5.0 Figure 5. Active Region Safe Operating Area 5.0 1.0 0.1 10 20 60 100 TJ = 150°C BD243B, BD244B BD243C, BD244C 5.0 ms 0.5 ms 0.2 2.0 0.5 VCE, COLLECTOR-EMITTER VOLTAGE (VOLTS) 3.0 0.3 40 80 1.0 ms There are two limitations on the power handling ability of a transistor: average junction temperature and second breakdown. Safe operating area curves indicate IC − VCE limits of the transistor that must be observed for reliable operation, i.e., the transistor must not be subjected to greater dissipation than the curves indicate. The data of Figure 5 is based on TJ(pk) = 150°C: TC is variable depending on conditions. Second breakdown pulse limits are valid for duty cycles to 10% provided TJ(pk) v 150°C, TJ(pk) may be calculated from the data in Figure 4. At high case temperatures, thermal limitations will reduce the power that can be handled to values less than the limitations imposed by second breakdown. |
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