2STF1550 2STN1550 Low voltage high performance NPN power transistors Preliminary Data Features ■ Very low collector-emitter saturation voltage ■ High current gain characteristic ■ Fast switching speed ■ Surface mounting devices in medium power SOT-89 and SOT-223 packages 4 4 3 2 1 Applications SOT-89 ■ Emergency lighting ■ LED ■ Motherboard and hard disk drive ■ Mobile equipment ■ Battery charger ■ Voltage regulation Figure 1. 1 2 3 SOT-223 Internal schematic diagram Description The 2STF1550 and 2STN1550 are NPN transistors 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. Table 1. Device summary Order codes Marking Package 2STF1550 1550 SOT-89 2STN1550 N1550 SOT-223 Packaging Tape and reel November 2008 Rev 2 This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice. 1/8 www.st.com 8 Electrical ratings 1 2STF1550 - 2STN1550 Electrical ratings Table 2. Absolute maximum rating Value Symbol Parameter 2STN1550 SOT-89 SOT-223 Unit VCES Collector-emitter voltage (VCE = 0) 50 V VCEO Collector-emitter voltage (IB = 0) 50 V VEBO Emitter-base voltage (IC = 0) 5 V Collector current 5 A Collector peak current (tP < 5 ms) 10 A Base current 1 A IC ICM IB PTOT Total dissipation at Tamb = 25 °C Tstg Storage temperature TJ Table 3. Symbol 1.4 1.6 W -65 to 150 °C 150 °C Max. operating junction temperature Thermal data Parameter Rthj-amb(1) Thermal resistance junction-amb 1. Device mounted on PCB area of 1 cm2 2/8 2STF1550 __max SOT-89 SOT-223 Unit 89 78 °C/W 2STF1550 - 2STN1550 2 Electrical characteristics Electrical characteristics (Tcase = 25 °C unless otherwise specified) Table 4. Symbol Electrical characteristics Parameter Test conditions Min. Typ. Max. Unit ICBO Collector cut-off current (IE = 0) VCB = 50 V 0.1 μA IEBO Emitter cut-off current (IC = 0) VEB = 4 V 0.1 μA Collector-base breakdown voltage (IE = 0) IC = 100 μA 50 V Collector-emitter V(BR)CEO (1) breakdown voltage (IB = 0) IC = 10 mA 50 V Emitter-base breakdown voltage (IC = 0) IE = 100 μA 5 V DC current gain IC = 0.5 A IC = 2 A IC = 3 A IC = 5 A VCE = 2 V VCE = 2 V VCE = 2 V VCE = 5 V V(BR)CBO V(BR)EBO hFE (1) 250 135 100 400 95 VCE(sat) (1) Collector-emitter saturation voltage IC = 3 A IB = 300 mA 0.26 0.45 V VBE(sat) (1) Base-emitter saturation voltage IC = 3 A IB = 300 mA 1 1.2 V Collector-base capacitance (IE = 0) VCB = 10 V, f = 1 MHz Resistive load Turn-on time Turn-off time IC = 1.5 A VCC = 10 V IB1 = -IB2 = 150 mA CCBO ton toff 20 pF 90 700 ns ns 1. Pulsed duration = 300 μs, duty cycle ≤1.5% 3/8 Package mechanical data 3 2STF1550 - 2STN1550 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 4/8 2STF1550 - 2STN1550 Package mechanical data SOT-89 MECHANICAL DATA mm DIM. MIN. TYP. mils MAX. MIN. A 1.4 1.6 55.1 TYP. MAX. 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 5/8 Package mechanical data 2STF1550 - 2STN1550 SOT-223 mechanical data mm. DIM. min. typ A max. 1.80 A1 0.02 0.1 B 0.60 0.70 0.85 B1 2.90 3.00 3.15 c 0.24 0.26 0.35 D 6.30 6.50 6.70 e 2.30 e1 4.60 E 3.30 3.50 3.70 H 6.70 7.00 7.30 V 10 o 0046067_L 6/8 2STF1550 - 2STN1550 4 Revision history Revision history Table 5. Document revision history Date Revision Changes 08-May-2007 1 Initial release 12-Nov-2008 2 Updated SOT-223 mechanical data 7/8 2STF1550 - 2STN1550 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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