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TIP42 Datasheet(PDF) 4 Page - ON Semiconductor |
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TIP42 Datasheet(HTML) 4 Page - ON Semiconductor |
4 / 6 page TIP41, TIP41A, TIP41B, TIP41C (NPN); TIP42, TIP42A, TIP42B, TIP42C (PNP) http://onsemi.com 4 t, TIME (ms) 1.0 0.01 0.01 0.1 1.0 1.0 100 ZqJC(t) = r(t) RqJC RqJC = 1.92°C/W MAX D CURVES APPLY FOR POWER PULSE TRAIN SHOWN READ TIME AT t1 TJ(pk) - TC = P(pk) ZqJC(t) P(pk) t1 t2 SINGLE PULSE 1.0 k D = 0.5 0.2 0.05 DUTY CYCLE, D = t1/t2 Figure 4. Thermal Response 0.1 0.05 0.02 0.01 0.03 0.02 0.07 0.5 0.3 0.2 0.7 0.02 0.05 0.2 0.5 2.0 5.0 200 500 10 20 50 VCE, COLLECTOR-EMITTER VOLTAGE (VOLTS) 10 20 5.0 60 100 Figure 5. Active-Region Safe Operating Area 0.2 0.1 0.5 SECONDARY BREAKDOWN LTD BONDING WIRE LTD THERMAL LIMITATION @ TC = 25°C (SINGLE PULSE) 1.0ms 2.0 1.0 10 5.0 0.5ms CURVES APPLY BELOW RATED VCEO 3.0 0.3 40 80 5.0ms TJ = 150°C TIP41, TIP42 TIP41A, TIP42A TIP41B, TIP42B TIP41C, TIP42C 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. 0.1 0.4 0.6 4.0 0.06 1.0 2.0 0.2 IC, COLLECTOR CURRENT (AMP) Figure 6. Turn-Off Time 5.0 2.0 1.0 0.7 0.5 0.3 0.2 0.1 0.07 0.05 6.0 1.0 3.0 5.0 20 0.5 10 2.0 VR, REVERSE VOLTAGE (VOLTS) Figure 7. Capacitance 300 200 100 70 50 30 30 50 TJ = 25°C VCC = 30 V IC/IB = 10 IB1 = IB2 Cib Cob 3.0 ts tf TJ = 25°C |
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