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| NPN SILICON PLANAR MEDIUM POWER DARLINGTON TRANSISTORS ISSUE 1 MARCH 94 FEATURES * 60 Volt VCEO * Gain of 10K at IC=0.5 Amp * Ptot=1 Watt BCX38A/B/C C B E ABSOLUTE MAXIMUM RATINGS. PARAMETER Collector-Base Voltage Collector-Emitter Voltage Emitter-Base Voltage Peak Pulse Current Continuous Collector Current Power Dissipation at Tamb=25C Operating and Storage Temperature Range SYMBOL VCBO VCEO VEBO ICM IC Ptot Tj:Tstg 80 60 10 2 E-Line TO92 Compatible VALUE UNIT V V V A mA W C 800 1 -55 to +200 ELECTRICAL CHARACTERISTICS (at Tamb = 25C). PARAMETER Collector-Base Breakdown Voltage Collector-Emitter Sustaining Voltage Emitter-Base Breakdown Voltage Collector Cut-Off Current Emitter Cut-Off Current Collector-Emitter Saturation Voltage Base-Emitter Turn-on Voltage Static Forward Current Transfer Ratio BCX38A BCX38B BCX38C SYMBOL V(BR)CBO VCEO(sus) V(BR)EBO ICBO IEBO VCE(sat) VBE(on) hFE 500 1000 2000 4000 5000 10000 3-20 MIN. 80 60 10 100 100 1.25 1.8 TYP. MAX. V V V nA nA V V UNIT CONDITIONS. IC=10A, IE=0 IC=10mA, IB=0 IE=10A, IC=0 VCB=60V, IE=0 VEB=8V, IC=0 IC=800mA, IB=8mA* IC=800mA, VCE=5V* IC=100mA, VCE=5V* IC=500mA, VCE=5V* IC=100mA, VCE=5V* IC=500mA, VCE=5V* IC=100mA, VCE=5V* IC=500mA, VCE=5V* BCX38A/B/C TYPICAL CHARACTERISTICS IC/IB=100 1.0 1.6 -55C +25C 0.6 +100C 0.4 +175C +100C VCE=5V 0.8 hFE - Normalised Gain 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0 0.001 0.01 0.1 1 10 -55C +25C VCE(sat) - (Volts) 0.2 0.001 0.01 0.1 1 10 IC - Collector Current (Amps) IC - Collector Current (Amps) VCE(sat) v IC hFE v IC IC/IB=100 2.0 2.0 VCE=5V VBE(sat) - (Volts) VBE - (Volts) -55C 1.5 +25C 1.0 +100C +175C 0.5 0.001 0.01 0.1 1 10 -55C 1.5 +25C 1.0 +100C +175C 0.01 0.1 1 10 0.5 0.001 IC - Collector Current (Amps) IC - Collector Current (Amps) VBE(sat) v IC 10 VBE(on) v IC Single Pulse Test at Tamb=25C D=1 (D.C.) Thermal Resistance (C/W) IC - Collector Current (Amps) 150 100 D=0.5 1 50 D=0.2 D=0.1 D=0.05 Single Pulse 0.1 0 0.0001 D.C. 1s 100ms 10ms 1.0ms 0.1ms 0.001 0.01 0.1 1 10 100 0.01 1 10 100 1000 Pulse Width (seconds) Maximum transient thermal impedance VCE - Collector Voltage (Volts) Safe Operating Area 3-21 BCX38A/B/C The maximum permissable operational temperature can be obtained using the equation: 1.0 RS10k 0.8 RS=47k RS=1M 0.6 RS= Maximum Power Dissipation - (W) T amb (max ) = Power (max ) -Power (actual ) + 25 C 0.0057 Tamb(max)= Maximum operating ambient temperature Power (max) = Maximum power dissipation figure, for a given VCE and source resistance (RS) 0.4 0.2 1 10 100 Power (actual) = Actual power dissipation in users circuit VCE - Collector-Emitter Voltage - (V) 3-22 |
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