2STR1215 Low voltage fast-switching NPN power transistor General features ■ Very low collector-emitter saturation voltage ■ High current gain characteristic ■ Fast switching speed ■ Miniature SOT-23 plastic package for surface mounting circuits ■ In compliance with the 2002/93/EC European Directive SOT-23 Description The 2STR1215 is a NPN transistor manufactured using new “PB-HCD” (Power Bipolar High Current Density) technology. The resulting transistor shows exceptional high gain performances coupled with very low saturation voltage. Internal schematic diagram The complementary PNP is the 2STR2215. Applications ■ LED ■ Battery charger ■ Voltage and relay driver ■ Voltage regulation Order codes Part Number Marking Package Packing 2STR1215 115 SOT-23 Tape & reel July 2006 Rev 2 1/10 www.st.com 10 2STR1215 Contents 1 Electrical ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.1 Electrical characteristics (curves) ............................ 5 2.2 Test circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 2/10 2STR1215 1 Electrical ratings Electrical ratings Table 1. Absolute maximum rating Symbol Parameter Value Unit VCBO Collector-base voltage (IE = 0) 15 V VCEO Collector-emitter voltage (IB = 0) 15 V VEBO Emitter-base voltage (IC = 0) 5 V 1.5 A IC Collector current ICM Collector peak current (tP < 5ms) 3 A Ptot Total dissipation at T amb = 25°C 500 mW Tstg Storage temperature -65 to 150 °C 150 °C Value Unit 250 °C/W TJ Table 2. Symbol Max. operating junction temperature Thermal data Parameter Rthj-amb(1) Thermal resistance junction-amb __max (1) Device mounted on PCB area of 1cm2 3/10 Electrical characteristics 2 2STR1215 Electrical characteristics (Tcase = 25°C unless otherwise specified) Table 3. Symbol Electrical characteristics Parameter Test Conditions Typ. Max. Unit ICBO Collector cut-off current (IE =0) VCB = 15V 0.1 µA IEBO Emitter cut-off current (IC =0) VEB = 4V 0.1 µA Collector-emitter breakdown voltage (IE = 0) IC = 100µA 15 V Collector-emitter V(BR)CEO (2) breakdown voltage (IB = 0) IC = 10mA 15 V IE = 100µA 5 V V(BR)CBO V(BR)EBO VCE(sat) (2) VBE(sat) (2) hFE (2) Emitter-base breakdown voltage (IC = 0) Collector-emitter saturation voltage IC = 0.1A IB = 1mA IC = 1A IB = 100mA IC = 2A IB = 200mA Base-emitter saturation voltage IC = 1A IB = 100mA IC = 50mA V CE = 2V 200 IC = 0.5A V CE = 2V 200 IC = 1A V CE = 2V 130 IC = 2A V CE = 2V 80 IE = 0 V CB = 10V DC current gain CCBO Collector-base capacitance ton Resistive load Turn-on time Turn-off time toff f = 1MHz IC = 1.5A VCC = 10V IB1 = -IB2 = 150mA Note (2) Pulsed duration = 300 µs, duty cycle ≤1.5% 4/10 Min. 0.15 V 0.25 0.5 V 0.4 0.85 V 0.9 1.25 V 280 560 16 pF 60 ns 310 ns 2STR1215 2.1 Electrical characteristics Electrical characteristics (curves) Figure 1. DC current gain Figure 2. Collector-emitter saturation voltage Figure 3. Base-emitter saturation voltage Figure 4. Resistive load switching time Figure 5. Resistive load switching time Figure 6. Capacitance 5/10 Electrical characteristics 2.2 Test circuits Figure 7. Resistive load switching test circuit 1) Fast electronic switch 2) Non-inductive resistor 6/10 2STR1215 2STR1215 3 Package mechanical data 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 7/10 Package mechanical data 2STR1215 SOT-23 MECHANICAL DATA mm DIM. MIN. TYP. mils MAX. MIN. TYP. MAX. A 0.85 1.1 33.4 43.3 B 0.65 0.95 25.6 37.4 C 1.20 1.4 47.2 55.1 D 2.80 3 110.2 118 E 0.95 1.05 37.4 41.3 F 1.9 2.05 74.8 80.7 G 2.1 2.5 82.6 98.4 H 0.38 0.48 14.9 18.8 L 0.3 0.6 11.8 23.6 M 0 0.1 0 3.9 N 0.3 0.65 11.8 25.6 O 0.09 0.17 3.5 6.7 0044616/B 8/10 2STR1215 4 Revision history Revision history Table 4. Revision history Date Revision Changes 09-Feb-2006 1 Initial release 18-Jul-2006 2 New template 9/10 2STR1215 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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