BUL138

® BUL138 HIGH VOLTAGE FAST-SWITCHING NPN POWER TRANSISTOR s STMicroelectronics PREFERRED SALESTYPE s NPN TRANSISTOR s HIGH VOLTAGE CAPABILITY s LOW SPREAD OF DYNAMIC PARAMETERS s MINIMUM LOT-TO-LOT SPREAD FOR RELIABLE OPERATION s VERY HIGH SWITCHING SPEED s FULLY CHARACTERIZED AT 125oC APPLICATIONS s ELECTRONIC BALLASTS FOR FLUORESCENT LIGHTING s FLYBACK AND FORWARD SINGLE TRANSISTOR LOW POWER CONVERTERS DESCRIPTION The BUL138 is manufactured using high voltage Multi Epitaxial Planar technology for high switching speeds and high voltage capability. It uses a Cellular Emitter structure with planar edge termination to enhance switching speeds. The BUL series is designed for use in lighting applications and low cost switch-mode power supplies. 3 2 1 TO-220 INTERNAL SCHEMATIC DIAGRAM ABSOLUTE MAXIMUM RATINGS Symbol VCES VCEO VEBO IC ICM IB IBM Ptot Tstg Tj Parameter Collector-Emitter Voltage (VBE = 0) Collector-Emitter Voltage (IB = 0) Emitter-Base Voltage (IC = 0) Collector Current Collector Peak Current (tp < 5 ms) Base Current Base Peak Current (tp < 5 ms) Total Dissipation at Tc = 25 oC Storage Temperature Max. Operating Junction Temperature June 2001 Value 800 400 9 5 10 2 4 80 -65 to 150 150 Unit V V V A A A A W oC oC 1/6 BUL138 THERMAL DATA Rthj-case Thermal Resistance Junction-case Rthj-amb Thermal Resistance Junction-ambient Max Max 1.56 62.5 oC/W oC/W ELECTRICAL CHARACTERISTICS (Tcase = 25 oC unless otherwise specified) Symbol Parameter Test Conditions ...