BULD742C High voltage fast-switching NPN power transistor Features ■ Low spread of dynamic parameters ■ High voltage capability ■ Minimum lot-to-lot spread for reliable operation ■ Very high switching speed 3 1 Applications ■ Electronic ballast for fluorescent lighting ■ Switch mode power supplies DPAK Description The device is manufactured using high voltage Multi-Epitaxial Planar technology for high switching speeds and high voltage capability. Thanks to an increased intermediate layer, it has an intrinsic ruggedness which enables the transistor to withstand an high collector current level during breakdown condition, without using the transil protection usually necessary in typical converters for lamp ballast. Table 1. Figure 1. Internal schematic diagram Device summary Order code Marking Package Packaging BULD742CT4 BULD742C DPAK Tape & reel August 2007 Rev 1 1/12 www.st.com 12 Contents BULD742C Contents 1 Electrical ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.1 Electrical characteristics (curves) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3 Test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 5 Packaging mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 6 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 2/12 BULD742C 1 Electrical ratings Electrical ratings Table 2. Absolute maximum rating Symbol Parameter Value Unit VCES Collector-emitter voltage (VBE = 0) 1050 V VCEO Collector-emitter voltage (IB = 0) 400 V VEBO Emitter-base voltage (IC = 0, IB = 2 A, tp < 10 ms) V(BR)EBO V Collector current 4 A Collector peak current (tP < 5ms) 8 A Base current 2 A IBM Base peak current (tP < 5ms) 4 A Ptot Total dissipation at Tc = 25°C 45 W Tstg Storage temperature -65 to 150 °C 150 °C Value Unit 2.78 °C/W 73 °C/W IC ICM IB TJ Table 3. Symbol Max. operating junction temperature Thermal data Parameter Rthj-case Thermal resistance junction - case Rthj-amb Thermal resistance junction - ambient 3/12 Electrical characteristics 2 BULD742C Electrical characteristics (Tcase = 25°C unless otherwise specified) Table 4. Symbol Electrical characteristics Parameter Test Conditions Typ. Max. Unit ICES Collector cut-off current (VBE = 0) VCE =1050 V 0.2 10 µA ICEO Collector cut-off current (IB = 0) VCE =400 V 10 250 µA V(BR)EBO Emitter base breakdown voltage (IC = 0) IE = 1 mA 15 19 24 V IC =10 mA 400 450 Collector-emitter VCEO(sus) (1) sustaining voltage (IB = 0) IC = 1 A 0.5 1.5 V V IC = 3.5 A IB = 1 A 1.1 1.5 V IC = 0.1 A IC = 0.8 A _ VCE = 5 V _ _ VCE = 3 V 75 35 100 50 2.4 350 3.5 500 IC = 3.5 A VBE(sat) (1) Base-emitter saturation voltage DC current gain ts tf Ear Repetitive avalanche energy IB = 0.2 A 0.15 0.6 Collector-emitter saturation voltage Resistive load Storage time Fall time _ V IB = 1 A VCE(sat) (1) hFE (1) _ _ IC = 2 A 48 25 VCC = 125 V IB1 = -IB2 = 400 mA tp = 300 µs L = 2 mH VBE(off) = -5 V 1. Pulsed duration = 300 ms, duty cycle ≤1.5% 4/12 Min. VBE(off) = -5 V µs ns C = 1.8 nF 6 mJ BULD742C 2.1 Electrical characteristics Electrical characteristics (curves) Figure 2. Safe operating area Figure 3. Derating curve Figure 4. Output characteristics Figure 5. DC current gain Figure 6. DC current gain Figure 7. Collector - emitter saturation voltage 5/12 Electrical characteristics Figure 8. 6/12 Base-emitter saturation voltage BULD742C Figure 9. Resistive load switching on times (hFE = 5) Figure 10. Resistive load switching off times (hFE = 5) Figure 11. Resistive load switching on times (hFE = 10) Figure 12. Resistive load switching off times (hFE = 10) Figure 13. Reverse biased SOA BULD742C 3 Test circuit Test circuit Figure 14. Energy rating test circuit Figure 15. Resistive load switching test circuit 7/12 Package mechanical data 4 BULD742C Package mechanical data In order to meet environmental requirements, ST offers these devices in ECOPACK® packages. These packages have a Lead-free second level interconnect. The category of second level interconnect is marked on the package and on the inner box label, in compliance with JEDEC Standard JESD97. The maximum ratings related to soldering conditions are also marked on the inner box label. ECOPACK is an ST trademark. ECOPACK specifications are available at: www.st.com 8/12 BULD742C Package mechanical data DPAK MECHANICAL DATA mm. inch DIM. MAX. MIN. A A1 A2 B b4 MIN. 2.2 0.9 0.03 0.64 5.2 2.4 1.1 0.23 0.9 5.4 0.086 0.035 0.001 0.025 0.204 0.094 0.043 0.009 0.035 0.212 C C2 D D1 E E1 0.45 0.48 6 0.6 0.6 6.2 0.017 0.019 0.236 0.023 0.023 0.244 6.6 0.252 e e1 H L (L1) L2 L4 R V2 TYP 5.1 6.4 0.090 4.6 10.1 0.173 0.368 0.039 2.8 0.8 0.181 0.397 0.110 0.031 1 0.023 0.2 0° 0.260 0.185 2.28 0.6 MAX. 0.200 4.7 4.4 9.35 1 TYP. 0.039 0.008 8° 0° 8° 0068772-F 9/12 Packaging mechanical data 5 BULD742C Packaging mechanical data DPAK FOOTPRINT All dimensions are in millimeters TAPE AND REEL SHIPMENT REEL MECHANICAL DATA DIM. mm MIN. A B 1.5 C 12.8 D 20.2 G 16.4 N 50 T TAPE MECHANICAL DATA DIM. mm MIN. MAX. MIN. MAX. A0 6.8 7 0.267 0.275 B0 10.4 10.6 0.409 0.417 B1 D 10/12 inch 1.5 D1 1.5 E 1.65 12.1 0.476 1.6 0.059 0.063 1.85 0.065 0.073 0.059 F 7.4 7.6 0.291 0.299 K0 2.55 2.75 0.100 0.108 0.153 0.161 P0 3.9 4.1 P1 7.9 8.1 0.311 0.319 P2 1.9 2.1 0.075 0.082 R 40 W 15.7 1.574 16.3 0.618 0.641 inch MAX. MIN. MAX. 330 12.992 13.2 0.504 0.520 0.059 0.795 18.4 0.645 0.724 1.968 22.4 0.881 BASE QTY BULK QTY 2500 2500 BULD742C 6 Revision history Revision history Table 5. Document revision history Date Revision 09-Aug-2007 1 Changes First release. 11/12 BULD742C Please Read Carefully: Information in this document is provided solely in connection with ST products. STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described herein at any time, without notice. All ST products are sold pursuant to ST’s terms and conditions of sale. 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