MJF122, MJF127 Complementary Power Darlingtons For Isolated Package Applications Designed for general purpose amplifiers and switching MJF122, MJF127 ELECTRICAL CHARACTERISTICS (T = 25 C unless otherwise noted) C Characteristic Symbol Min Max Unit OFF CHARACTERISTICS CollectorEmitter Sustaining Voltage (Note 3) V 100 Vdc CEO(sus) (I = 100 mAdc, I = 0) C B Collector Cutoff Current I 10 Adc CEO (V = 50 Vdc, I = 0) CE B Collector Cutoff Current I 10 Adc CBO (V = 100 Vdc, I = 0) CB E Emitter Cutoff Current (V = 5 Vdc, I = 0) I 2 mAdc BE C EBO ON CHARACTERISTICS (Note 3) DC Current Gain (I = 0.5 Adc, V = 3 Vdc) h 1000 C CE FE DC Current Gain (I = 3 Adc, V = 3 Vdc) 2000 C CE CollectorEmitter Saturation Voltage (I = 3 Adc, I = 12 mAdc) V 2 Vdc C B CE(sat) CollectorEmitter Saturation Voltage (I = 5 Adc, I = 20 mAdc) 3.5 C B BaseEmitter On Voltage (I = 3 Adc, V = 3 Vdc) V 2.5 Vdc C CE BE(on) DYNAMIC CHARACTERISTICS SmallSignal Current Gain (I = 3 Adc, V = 4 Vdc, f = 1 MHz) h 4 C CE fe Output Capacitance MJF127 C 300 pF ob (V = 10 Vdc, I = 0, f = 0.1 MHz) MJF122 200 CB E 3. Pulse Test: Pulse Width 300 s, Duty Cycle 2%. 5 t s R & R VARIED TO OBTAIN DESIRED CURRENT LEVELS B C 3 V CC D , MUST BE FAST RECOVERY TYPES, e.g., 1 - 30 V 2 1N5825 USED ABOVE I 100 mA B R C MSD6100 USED BELOW I 100 mA B SCOPE t f TUT 1 V R 2 B 0.7 APPROX. 0.5 +8 V 8 k 120 D 51 1 0 0.3 t V = 0 V t d BE(off) r V 0.2 1 V = 30 V CC APPROX. +4 V I /I = 250 C B -12 V 25 s 0.1 PNP I = I B1 B2 0.07 NPN T = 25C J t , t 10 ns FOR t AND t , D IS DISCONNECTED r f d r 1 0.05 DUTY CYCLE = 1% AND V = 0 2 0.1 0.5 0.7 1 2537 10 0.2 0.3 FOR NPN TEST CIRCUIT REVERSE ALL POLARITIES. I , COLLECTOR CURRENT (AMP) C Figure 2. Typical Switching Times Figure 1. Switching Times Test Circuit