2STF2220 High gain Low Voltage PNP power transistor Features ■ Very low Collector to Emitter saturation voltage ■ D.C. Current gain, hFE >100 ■ 1.5 A continuous collector current Applications ■ Power management in portable equipment ■ Switching regulator in battery charger applications SOT-89 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. Table 1. Figure 1. Internal schematic diagram Device summary Order code Marking Package Packaging 2STF2220 2220 SOT-89 Tape & reel September 2007 Rev 3 1/11 www.st.com 11 2STF2220 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 2STF2220 1 Electrical ratings Electrical ratings Table 2. Absolute maximum rating Symbol Parameter Value Unit VCBO Collector-base voltage (IE = 0) -20 V VCEO Collector-emitter voltage (IB = 0) -20 V VEBO Emitter-base voltage (IC = 0) -5 V -1.5 A -3 A Base current -0.1 A IBM Base peak current (tP < 5ms) -0.2 A Ptot Total dissipation at T amb = 25°C 1.4 W Tstg Storage temperature -65 to 150 °C 150 °C Value Unit 89 °C/W IC ICM IB TJ Table 3. Symbol Collector current Collector peak current (tP < 5ms) 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 2STF2220 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 = -20V -0.1 µA IEBO Emitter cut-off current (IC =0) VEB = -5V -0.1 µA Collector-emitter V(BR)CEO (2) breakdown voltage (IB = 0) V(BR)EBO Emitter-base breakdown voltage (IC = 0) IC = -10mA -20 V IE = -100µA -5 V Collector-emitter saturation voltage IC = -0.5A IB = -50mA -0.25 V IC = -1.5A IB = -150mA -0.45 V VBE(sat) (2) Base-emitter saturation voltage IC = -0.5A IB = -50mA IC = -1.5A IB = -150mA -1 -1.1 V V VBE(on) (2) Base-emitter on voltage IC = -1A V CE = -2V -1 V IC = -100mA V CE = -2V 200 IC = -500mA V CE = -2V 170 IC = -1.5A V CE = -2V 120 IC = -3A V CE = -2V 75 VCE(sat) (2) hFE (2) DC current gain CCBO Collector-base capacitance ton Resistive load Turn-on time Turn-off time toff IE = 0 VCB = -10V f = 1MHz IC = -1.5A V CC = -10V IB1 = -IB2 = -150mA Note (2) Pulsed duration = 300 µs, duty cycle ≤1.5% 4/11 Min. 600 30 pF 60 ns 250 ns 2STF2220 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. Base-emitter on voltage 2STF2220 Figure 9. Capacitance curves Figure 10. Switching time resistive load Figure 11. Switching time resistive load 6/11 2STF2220 2.2 Electrical characteristics Test circuits Figure 12. Resistive load switching test circuit 1) Fast electronic switch 2) Non-inductive resistor 7/11 Package mechanical data 3 2STF2220 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 2STF2220 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 2STF2220 Revision history Table 5. 10/11 Document revision history Date Revision Changes 19-Jun-2006 1 Initial release. 27-Sep-2006 2 New maturity code. 18-Sep-2007 3 Added Figure 3. 2STF2220 Please Read Carefully: Information in this document is provided solely in connection with ST products. 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