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BU911 MEDIUM VOLTAGE NPN IGNITION DARLINGTON s SGS-THOMSON PREFERRED SALESTYPE s NPN DARLINGTON s LOW BASE-DRIVE REQUIREMENTS s INTEGRATED ANTIPARALLEL COLLECTOR-EMITTER DIODE APPLICATIONS: s SOLENOID / RELAY DRIVERS s MOTOR CONTROL 3 s ELECTRONIC AUTOMOTIVE IGNITION 2 1 DESCRIPTION The BU911 is an NPN transistor in monolithic TO-220 Darlington configuration Jedec TO-220 plastic package, designed for applications such as electronic ignition, DC and AC motor controls, solenoid drivers, etc. INTERNAL SCHEMATIC DIAGRAM R 1 = 1.7 k R 2 = 50 ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit V CES Collector-Emitter Voltage (V BE = 0) 450 V V CEO Collector-Emitter Voltage (I B = 0) 400 V V EBO Emitter-Base Voltage (I C = 0) 5 V IC Collector Current 6 A I CM Collector Peak Current 10 A IB Base Current 1 A P tot Total Dissipation at T c 25 o C 60 W o T stg Storage Temperature -65 to 150 C o Tj Max. Operating Junction Temperature 150 C June 1997 1/4 BU911 THERMAL DATA o R thj-case Thermal Resistance Junction-case Max 2.08 C/W ELECTRICAL CHARACTERISTICS (Tcase = 25 oC unless otherwise specified) Symbol Parameter Test Conditions Min. Typ. Max. Unit I CES Collector Cut-off Current V CE =450 V 1 mA o (V BE = 0) V CE =450 V T case = 125 C