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MJD127G Datasheet(PDF) 6 Page - ON Semiconductor |
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MJD127G Datasheet(HTML) 6 Page - ON Semiconductor |
6 / 8 page MJD122, NJVMJD122 (NPN), MJD127, NJVMJD127 (PNP) www.onsemi.com 6 t, TIME OR PULSE WIDTH (ms) 1 0.01 1000 0.3 0.2 0.07 RqJC(t) = r(t) RqJC RqJC = 6.25°C/W D CURVES APPLY FOR POWER PULSE TRAIN SHOWN READ TIME AT t1 TJ(pk) - TC = P(pk) qJC(t) P(pk) t1 t2 DUTY CYCLE, D = t1/t2 0.01 0.7 0.5 0.1 0.05 0.03 0.02 0.02 0.03 0.05 0.1 0.2 0.3 0.5 1 2 3 5 10 20 30 50 100 200 300 500 0.2 SINGLE PULSE D = 0.5 0.05 0.1 0.5 3 0.3 0.2 0.7 1 5 IC, COLLECTOR CURRENT (AMP) VCC = 30 V IC/IB = 250 IB1 = IB2 TJ = 25°C 3 2 0.7 0.5 0.3 0.2 ts tf tr td @ VBE(off) = 0 V PNP NPN Figure 9. Switching Times Test Circuit Figure 10. Switching Times 0.1 1 10 7 5 2 Figure 11. Thermal Response V2 APPROX +8 V 0 ≈ 8 k SCOPE VCC -30 V RC 51 FOR td AND tr, D1 IS DISCONNECTED AND V2 = 0 FOR NPN TEST CIRCUIT REVERSE ALL POLARITIES. 25 ms tr, tf ≤ 10 ns DUTY CYCLE = 1% + 4 V RB & RC VARIED TO OBTAIN DESIRED CURRENT LEVELS D1, MUST BE FAST RECOVERY TYPE, e.g.: 1N5825 USED ABOVE IB ≈ 100 mA MSD6100 USED BELOW IB ≈ 100 mA V1 APPROX -12 V TUT RB D1 ≈ 120 0.07 0.05 0.1 0.01 5 VCE, COLLECTOR-EMITTER VOLTAGE (VOLTS) 0.3 100 5 2 0.5 0.2 BONDING WIRE LIMIT THERMAL LIMIT TC = 25°C (SINGLE PULSE) SECOND BREAKDOWN LIMIT 10 50 7 TJ = 150°C 100 m σ 1ms dc 0.1 1 3 15 20 30 20 70 CURVES APPLY BELOW RATED VCEO 5ms Figure 12. Maximum Forward Bias Safe Operating rea 3 2 1 10 0.05 0.02 0.03 500 m σ 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 12 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) < 150 _C. TJ(pk) may be calculated from the data in Figure 11. 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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