STN951

STN951 Low voltage fast-switching PNP power transistor Features ■ ■ ■ ■ Very low collector-emitter saturation voltage High current gain characteristic Fast switching speed Surface mounting device in medium power SOT-223 package 4 1 SOT-223 2 3 Applications ■ ■ ■ ■ Emergency lighting Voltage regulators Relay drivers High efficiency low voltage switching applications Figure 1. Internal schematic diagram Description The device is manufactured in PNP planar technology by using a “Base Island” layout. The resulting transistor shows exceptional high gain performances coupled with very low saturation voltage. Table 1. Device summary Marking N951 Package SOT-223 Packaging Tape and reel Order codes STN951 October 2008 Rev 3 1/8 www.st.com 8 STN951 Contents 1 2 3 4 Electrical ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 2/8 STN951 Electrical ratings 1 Electrical ratings Table 2. Symbol VCBO VCEO VEBO IC ICM IB IBM Ptot Tstg Tj Absolute maximum rating Parameter Collector-base voltage (IE = 0) Collector-emitter voltage (IB = 0) Emitter-base voltage (IC = 0) Collector current Collector peak current (tP < 5 ms) Base current Base peak current (tP < 5 ms) Total dissipation at Tamb = 25 °C Storage temperature Max. operating junction temperature Value -60 -60 -6 -5 -10 -1 -2 1.6 -65 to 150 150 Unit V V V A A A A W °C °C Table 3. Symbol Thermal data Parameter __max Value 78 Unit °C/W Rthj-amb(1) Thermal resistance junction-amb 1. Device mounted on PCB area of 1cm 2 3/8 Electrical characteristics STN951 2 Electrical characteristics (Tcase = 25 °C unless otherwise specified) Table 4. Symbol ICBO IEBO Electrical characteristics Parameter Collector cut-off current (IE =0) Emitter cut-off current (IC =0) Test conditions VCB = -60 V VEB = -5 V Min. Typ. Max. -0.1 Unit µA -0.1 µA Collector-base V(BR)CBO (1) Breakdown voltage (IE =0) Collector-emitter V(BR)CEO (1) Breakdown voltage (IB =0) V(BR)EBO (1) Emitter-base Breakdown voltage (IC =0) IC = -100 µA -60 V IC = -10 mA -60 V IE = -100 µA IC = -100 mA IB = -5 mA IB = -50 mA IC = -1 A IC = -2 A IC = -5 A IB = -50 mA IB = -200 mA IB = -200 mA V CE = -1 V V CE = -1 V V CE = -1 V V CE = -1 V V CE = -1 V IC = -100 mA f = 1 MHz -6 -10 -70 -140 -350 -1 -0.89 150 150 65 10 300 270 90 25 130 60 80 600 70 350 -50 -120 -250 -500 -1.15 -1 V mV mV mV mV V V VCE(sat) (1) Collector-emitter saturation voltage VBE(sat) (1) VBE(on) (1) Base-emitter saturation voltage Base-emitter on voltage IC = -4 A IC = -4 A IC = -10 mA hFE (1) DC current gain IC = -2 A IC = -5 A IC = -10 A fT CCBO Transition frequency Collector-base capacitance (IE =0) Resistive load Turn-on time Storage time Fall time VCE = -10 V VCB = -10 V MHz pF ns ns ns ton ts tf IC = -1 A V CC = -30 V IB1 = - IB2 = -0.1 A 1. Pulse duration = 300 µs, duty cycle ≤ 2 % 4/8 STN951 Package mechanical data 3 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 5/8 Package mechanical data STN951 SOT-223 mechanical data mm. DIM. min. A A1 B B1 c D e e1 E H V 3 .30 6.70 0.02 0.60 2.90 0.24 6.30 0.70 3.00 0.26 6.50 2.30 4.60 3.50 7.00 3.70 7.30 10 o typ max. 1.80 0.1 0.85 3.15 0.35 6.70 0046067_L 6/8 STN951 Revision history 4 Revision history Table 5. Date 03-Oct-2006 30-Nov-2006 13-Oct-2008 . Document revision history Revision 1 2 3 Initial release. The emitter base voltage value has been modified Document status promoted from preliminary data to datasheet Changes 7/8 STN951 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. Purchasers are solely responsible for the choice, selection and use of the ST products and services described herein, and ST assumes no liability whatsoever relating to the choice, selection or use of the ST products and services described herein. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. 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