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| STT818B High gain low voltage PNP power transistor Features Very low collector to emitter saturation voltage DC current gain > 100 (hFE) 3 A continuous collector current (IC) Applications Power management in portable equipments Switching regulator in battery charger applications SOT23-6L Description The device is manufactured in low voltage PNP Planar Technology with "Base Island" layout. The resulting Transistor shows exceptional high gain performance coupled with very low saturation voltage. Figure 1. Internal schematic diagram Table 1. Device summary Marking 818B Package SOT23-6L Packaging Tape & reel Order code STT818B August 2007 Rev 5 1/10 www.st.com 10 Contents STT818B Contents 1 2 Electrical ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2.1 Electrical characteristics (curves) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 3 4 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 2/10 STT818B 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 < 5ms) Base current Base peak current (tP < 5ms) Total dissipation at Tamb = 25C Storage temperature Max. operating junction temperature Value -30 -30 -5 -3 -6 -0.2 -0.5 1.2 -65 to 150 150 Unit V V V A A A A W C C Table 3. Symbol Rthj-amb (1) Thermal data Parameter Thermal resistance junction-ambient max Value 104.2 Unit C/W 1. Package mounted on FR4 pcb 25mm x 25mm. 3/10 Electrical characteristics STT818B 2 Electrical characteristics (Tcase = 25C unless otherwise specified) Table 4. Symbol ICBO IEBO Electrical characteristics Parameter Collector cut-off current (IE =0) Collector-cut-off current (IC = 0) Test conditions VCB = -30 V VCB = -30 V VEB = -5 V TC = 125C Min. Typ. Max. -0.1 -20 -0.1 Unit A A A Collector-emitter V(BR)CEO(1) breakdown voltage (IB = 0) (1) IC = -10 mA IC = -0.5 A IC = -1.2 A IC = -2 A _ IB = -5 mA IB = -12 mA _ IB = -20 mA _ IB = -5 mA -30 V VCE(sat) Collector-emitter saturation voltage -0.075 -0.21 -0.74 -0.15 -0.3 -0.5 -1.1 -1.1 -1.2 V V V V V V VBE(sat) (1) Base-emitter saturation voltage IC = -0.5 A IC = -1.2A IC = -2A _ IB = -12 mA _ IB = -20 mA VCE = -1 V VCE = -3 V VCE = -2 V 100 100 -0.71 hFE(1) VBE(ON)(1) DC current gain Base-emitter voltage IC = -0.5 A IC = -2.5 A IC = -0.5 A -1.1 V 1. Pulse duration = 300 s, duty cycle 1.5 %. 4/10 STT818B Electrical characteristics 2.1 Electrical characteristics (curves) Figure 2. Safe operating area 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 5/10 Electrical characteristics Figure 8. Switching times resistive load Figure 9. STT818B Switching times resistive load 6/10 STT818B Package mechanical data 3 Package mechanical data In order to meet environmental requirements, ST offers these devices in ECOPACK(R) 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 7/10 Package mechanical data STT818B SOT23-6L MECHANICAL DATA mm MIN. A A1 A2 b C D E E1 L e e1 0.90 0.00 0.90 0.25 0.09 2.80 2.60 1.50 0.35 0.95 1.90 TYP. MAX. 1.45 0.15 1.30 0.50 0.20 3.10 3.00 1.75 0.55 MIN. 0.035 0.000 0.035 0.010 0.004 0.110 0.102 0.059 0.014 0.037 0.075 mils TYP. MAX. 0.057 0.006 0.051 0.020 0.008 0.122 0.118 0.069 0.022 DIM. A A2 A1 b e1 e c L E D E1 8/10 STT818B Revision history 4 Revision history Table 5. Date 12-Jul-2002 08-Aug-2007 Document revision history Revision 4 5 Changes No content change; the document has been reformatted Updated Figure 3 9/10 STT818B 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. (c) 2007 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 10/10 |
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