BD235_07

BD235 BD237 NPN power transistors Features ■ . NPN transistors Applications ■ Audio, power linear and switching application 3 2 1 Description The devices are manufactured in Planar technology with “Base Island” layout. The resulting transistor shows exceptional high gain performance coupled with very low saturation voltage. The PNP types are BD236 and BD238 respectively. SOT-32 (TO-126) Figure 1. Internal schematic diagram Table 1. Device summary Marking BD235 BD237 Package SOT-32 SOT-32 Packaging Tube Tube Order code BD235 BD237 July 2007 Rev 2 1/9 www.st.com 9 Absolute maximum ratings BD235 BD237 1 Absolute maximum ratings Table 2. Symbol Absolute maximum ratings Parameter Value BD235 BD237 100 100 80 5 2 6 25 -65 to 150 150 V V V V A A W °C °C Unit VCBO VCER VCEO VEBO IC ICM PTOT Tstg TJ Collector-base voltage (IE = 0) Collector-emitter voltage (RBE = 1K Ω) Collector-emitter voltage (IB = 0) Emitter-base voltage (IC = 0) Collector current Collector peak current (tp < ms) Total dissipation at Tcase = 25°C Storage temperature Max. operating junction temperature 60 60 60 2/9 BD235 BD237 Electrical characteristics 2 Electrical characteristics (Tcase = 25°C; unless otherwise specified) Table 3. Symbol ICBO IEBO Electrical characteristics Parameter Collector cut-off current (IE = 0) Emitter cut-off current (IC = 0) Test Conditions VCB = rated VCBO VCB = rated VCBO TC= 150°C VEB = 5V IC = 100mA for BD235 for BD237 IC = 1A __ IC = 1A ___ IB = 0.1A V CE = 2V 40 25 Min. Typ. Max. 0.1 2 1 Unit mA mA mA Collector-emitter VCEO(sus)(1) sustaining voltage (IB = 0) VCE(sat)(1) VBE(1) hFE(1) Collector-emitter saturation voltage Base-emitter voltage DC current gain 60 80 0.6 1.3 V V V V IC = 150mA _ VCE = 2V VCE = 2V IC = 1A_ 1. Pulsed duration = 300 ms, duty cycle ≥1.5%. 3/9 Electrical characteristics BD235 BD237 2.1 Electrical characteristic (curves) Figure 2. Safe operating area Figure 3. Derating curves Figure 4. DC current gain Figure 5. DC current gain Figure 6. Collector-emitter saturation voltage Figure 7. Base-emitter saturation voltage 4/9 BD235 BD237 Figure 8. Base-emitter on voltage Figure 9. Electrical characteristics Resistive load switching time Figure 10. Resistive load switching time Figure 11. Capacitance curves 2.2 Test circuit Figure 12. Resistive load switching test circuit 1) Fast electronic switch 2) Non-inductive resistor 5/9 Package mechanical data BD235 BD237 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 6/9 BD235 BD237 Package mechanical data SOT-32 (TO-126) mechanical data DIM. A B B1 D E e e1 L P Q Q1 H2 I 1 2.15 1.27 mm. MIN. 2.4 0.64 0.39 10.5 7.4 2.04 4.07 15.3 2.9 3.8 1.52 2.29 4.58 TYP MAX. 2.9 0.88 0.63 11.05 7.8 2.54 5.08 16 3.2 0016114E 7/9 Revision history BD235 BD237 4 Table 4. Revision history Revision history Revision 1 2 Initial Release Figures: 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 and figure 12 have been added. Changes Date 11-Feb-2003 09-Jul-2007 8/9 BD235 BD237 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 AUTHORIZED ST REPRESENTATIVE, 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. © 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 9/9