STSA851 Low voltage fast-switching NPN power transistor Features ■ Very low collector to emitter saturation voltage ■ High current gain characteristic ■ Fast-switching speed Applications ■ Emergency lighting ■ Voltage regulators ■ Relay drivers ■ High efficiency low voltage switching applications TO-92 Description Figure 1. TO-92AP Internal schematic diagram The device is manufactured in NPN planar technology by using a "base island" layout. the resulting transistor shows exceptional high gain performance coupled with very low saturation voltage. Table 1. Device summary Order code Marking Package Packaging STSA851 SA851 TO-92 Bulk STSA851-AP SA851 TO-92AP Ammopack March 2008 Rev 3 1/11 www.st.com 11 STSA851 Contents 1 Electrical ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.1 Electrical characteristics (curves) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2.2 Test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 3 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 2/11 STSA851 1 Electrical ratings Electrical ratings Table 2. Absolute maximum rating Symbol Parameter Value Unit VCBO Collector-base voltage (IE = 0) 150 V VCEO Collector-emitter voltage (IB = 0) 60 V VEBO Emitter-base voltage (IC = 0) 7 V Collector current 5 A Collector peak current (tP < 5 ms) 20 A Base current 1 A 1.1 W -65 to 150 °C 150 °C IC ICM IB Ptot Total dissipation at Tamb = 25 °C Tstg Storage temperature TJ Table 3. Symbol Rthj-amb Max. operating junction temperature Thermal data Parameter Thermal resistance junction-ambient __ max Value Unit 114 °C/W 3/11 Electrical characteristics 2 STSA851 Electrical characteristics (Tcase = 25 °C unless otherwise specified) Table 4. Electrical characteristics Symbol Parameter ICBO Collector cut-off current (IE = 0) IEBO Emitter cut-off current (IC = 0) Test conditions Typ. VCB = 120 V VCB = 120 V TC = 100 °C VEB = 7 V Max. Unit 50 1 nA µA 10 nA Collector-base V(BR)CBO (1) breakdown Voltage (IE = 0) IC = 100 µA 150 V Collector-emitter breakdown Voltage (IB = 0) IC = 10 mA 60 V Emitter-base breakdown IE = 100 µA V(BR)EBO (1) Voltage (IC = 0) 7 V V(BR)CEO VCE(sat) (1) (1) VBE(sat) (1) hFE fT CCBO ton ts tf IC = 100 mA IB = 5 mA 10 50 mV IC = 1 A _ IB = 50 mA 70 120 mV IC = 2 A _ IB = 50 mA 140 200 mV IC = 5 A _ IB = 200 mA 320 450 mV IC = 4 A IB = 200 mA 1 1.15 V IC = 10 mA V CE = 1 V 150 300 IC = 2 A V CE = 1 V 150 270 IC = 5 A V CE = 1 V 90 140 IC = 10 A V CE = 1 V 30 50 Transition frequency VCE = 10 V IC = 100 mA 130 MHz Collector-base capacitance VCB = 10 V f = 1 MHz 45 pF IC = 1 A VCC = 10 V 55 ns 1.35 µs 120 ns Collector-emitter saturation voltage Base-emitter saturation voltage DC current gain Resistive load Turn-on time Storage time Fall time IB1 = -IB2 = 0.1 A 1. Pulsed duration = 300 µs, duty cycle ≥ 1.5%. 4/11 Min. 350 STSA851 2.1 Electrical characteristics Electrical characteristics (curves) Figure 2. Output characteristics Figure 3. DC current gain Figure 4. Collector-emitter saturation voltage Figure 5. Collector-emitter saturation voltage Figure 6. Base-emitter saturation voltage Figure 7. Base-emitter on voltage 5/11 Electrical characteristics Figure 8. Switching times resistive load STSA851 Figure 9. Figure 10. Capacitance 2.2 Test circuit Figure 11. Resistive load switching test circuit 1) Fast electronic switch 2) Non-inductive resistor 6/11 Switching times resistive load STSA851 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 7/11 Package mechanical data STSA851 TO-92 BULK SHIPMENT MECHANICAL DATA DIM. mm. MIN. TYP MAX. A 4.32 4.95 b 0.36 0.51 D 4.45 4.95 E 3.30 3.94 e 2.41 2.67 e1 1.14 1.40 L 12.70 15.49 R 2.16 2.41 S1 0.92 1.52 W 0.41 V 0.56 5 O 0102782 C 8/11 STSA851 Package mechanical data TO-92 AMMOPACK SHIPMENT (Suffix”-AP”) MECHANICAL DATA DIM. A1 T T1 T2 d P0 P2 F1,F2 delta H W W0 W1 W2 H H0 H1 D0 t L I1 delta P MIN. 12.50 5.65 2.44 -2.00 17.50 5.70 8.50 mm. TYP 12.70 6.35 2.54 18.00 6.00 9.00 18.50 15.50 16.00 3.80 4.00 3.00 -1.00 MAX. 4.80 3.80 1.60 2.30 0.48 12.90 7.05 2.94 2.00 19.00 6.30 9.25 0.50 20.50 16.50 25.00 4.20 0.90 11.00 1.00 9/11 Revision history 4 STSA851 Revision history Table 5. 10/11 Document revision history Date Revision 05-Sep-2003 2 25-Mar-2008 3 Changes New graphics. STSA851 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. If any part of this document refers to any third party products or services it shall not be deemed a license grant by ST for the use of such third party products or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoever of such third party products or services or any intellectual property contained therein. UNLESS OTHERWISE SET FORTH IN ST’S TERMS AND CONDITIONS OF SALE ST DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY WITH RESPECT TO THE USE AND/OR SALE OF ST PRODUCTS INCLUDING WITHOUT LIMITATION IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE (AND THEIR EQUIVALENTS UNDER THE LAWS OF ANY JURISDICTION), OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. UNLESS EXPRESSLY APPROVED IN WRITING BY AN AUTHORIZE REPRESENTATIVE OF ST, ST PRODUCTS ARE NOT RECOMMENDED, AUTHORIZED OR WARRANTED FOR USE IN MILITARY, AIR CRAFT, SPACE, LIFE SAVING, OR LIFE SUSTAINING APPLICATIONS, NOR IN PRODUCTS OR SYSTEMS, WHERE FAILURE OR MALFUNCTION MAY RESULT IN PERSONAL INJURY, DEATH, OR SEVERE PROPERTY OR ENVIRONMENTAL DAMAGE. ST PRODUCTS WHICH ARE NOT SPECIFIED AS “AUTOMOTIVE GRADE” MAY ONLY BE USED IN AUTOMOTIVE APPLICATIONS AT USER’S OWN RISK. Resale of ST products with provisions different from the statements and/or technical features set forth in this document shall immediately void any warranty granted by ST for the ST product or service described herein and shall not create or extend in any manner whatsoever, any liability of ST. ST and the ST logo are trademarks or registered trademarks of ST in various countries. Information in this document supersedes and replaces all information previously supplied. The ST logo is a registered trademark of STMicroelectronics. All other names are the property of their respective owners. © 2008 STMicroelectronics - All rights reserved STMicroelectronics group of companies Australia - Belgium - Brazil - Canada - China - Czech Republic - Finland - France - Germany - Hong Kong - India - Israel - Italy - Japan Malaysia - Malta - Morocco - Singapore - Spain - Sweden - Switzerland - United Kingdom - United States of America www.st.com 11/11