2STF2340 Low voltage fast-switching PNP power transistor Features ■ Very low collector-emitter saturation voltage ■ High current gain characteristic ■ Fast switching speed ■ SOT-89 plastic package for surface mounting circuits Applications SOT-89 ■ LED ■ Motherboard & hard disk drive ■ Mobile equipment ■ Battery charger ■ Voltage regulation Figure 1. Internal schematic diagram Description The device in a PNP transistor manufactured using new “PB-HDC” (Power Bipolar High Density Current) technology. The resulting transistor shows exceptional high gain performances coupled with very low saturation voltage. The complementary NPN is the 2STF1340. Table 1. Device summary Order code Marking Package Packaging 2STF2340 2340 SOT-89 Tape and reel December 2007 Rev 1 1/11 www.st.com 11 2STF2340 Contents 1 Electrical ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.1 Electrical characteristics (curves) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.2 Test circuits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 3 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 4 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 2/11 2STF2340 1 Electrical ratings Electrical ratings Table 2. Absolute maximum rating Symbol Parameter Value Unit VCES Collector-emitter voltage (V CE = 0) -40 V VCEO Collector-emitter voltage (IB = 0) -40 V VEBO Emitter-base voltage (IC = 0) -5 V Collector current -3 A ICM Collector peak current (tP < 5ms) -6 A Ptot Total dissipation at Tamb = 25°C 1.4 W Tstg Storage temperature -65 to 150 °C 150 °C Value Unit 89.3 °C/W IC TJ Table 3. Symbol Max. operating junction temperature Thermal data Parameter Rthj-amb(1) Thermal resistance junction-amb __max 1. Device mounted on PCB area of 1cm2 3/11 Electrical characteristics 2 2STF2340 Electrical characteristics (Tcase = 25°C unless otherwise specified) Table 4. Symbol Electrical characteristics Parameter Test conditions Typ. Max. Unit ICBO Collector cut-off current (IE =0) VCB = -40 V -0.1 µA IEBO Emitter cut-off current (IC =0) VEB = -5 V -0.1 µA Collector-base V(BR)CBO (1) breakdown voltage (IE = 0) IC = -100 µA -40 V Collector-emitter V(BR)CEO (1) breakdown voltage (IB = 0) IC = -10 mA -40 V IE = -100 µA -5 V V(BR)EBO VCE(sat) (1) VBE(sat) (1) hFE (1) Emitter-base breakdown voltage (IC = 0) Collector-emitter saturation voltage IC = -2 A IB = -100 mA -0.2 V IC = -3 A IB = -150 mA -0.3 V Base-emitter saturation voltage IC = -2 A IB = -100 mA -0.9 IC = -0.1 A V CE = -2 V 280 IC = -1 A V CE = -2 V 250 IC = -3 A V CE = -2 V 200 IC = -0.1 A VCE = -5 V DC current gain ft Transition frequency CCBO Collector-base capacitance (IE = 0 ) ton toff Resistive load Turn-on time Turn-off time f = 100 MHz VCB = -10 V IC = -1.5 A f = 1 MHz VCC = -10 V IB1 = -IB2 = -150 mA 1. Pulsed duration = 300 µs, duty cycle ≤1.5% 4/11 Min. 100 -1.25 V MHz 50 pF 80 ns 450 ns 2STF2340 2.1 Electrical characteristics Electrical characteristics (curves) Figure 2. Output characteristics Figure 3. Derating curve Figure 4. DC current gain Figure 5. DC current gain Figure 6. Collector-emitter saturation voltage Figure 7. Base-emitter saturation voltage 5/11 Electrical characteristics Figure 8. Resistive load switching time Figure 9. Figure 10. Capacitance curves 6/11 2STF2340 Resistive load switching time 2STF2340 2.2 Electrical characteristics Test circuits Figure 11. Resistive load switching test circuit 1) Fast electronic switch 2) Non-inductive resistor 7/11 Package mechanical data 3 2STF2340 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 8/11 2STF2340 Package mechanical data SOT-89 MECHANICAL DATA mm DIM. MIN. TYP. mils MAX. MIN. TYP. MAX. A 1.4 1.6 55.1 63.0 B 0.44 0.56 17.3 22.0 B1 0.36 0.48 14.2 18.9 C 0.35 0.44 13.8 17.3 C1 0.35 0.44 13.8 17.3 D 4.4 4.6 173.2 181.1 D1 1.62 1.83 63.8 72.0 E 2.29 2.6 90.2 102.4 e 1.42 1.57 55.9 61.8 e1 2.92 3.07 115.0 120.9 H 3.94 4.25 155.1 167.3 L 0.89 1.2 35.0 47.2 P025H 9/11 Revision history 4 2STF2340 Revision history Table 5. 10/11 Document revision history Date Revision 04-Dec-2007 1 Changes Initial release. 2STF2340 Please Read Carefully: Information in this document is provided solely in connection with ST products. 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