STEVAL-ILL007V1

STEVAL-ILL007V1 High intensity LED driver for MR-16 format based on L5973D Data Brief Features ■ This evaluation board was designed so that it can be configured to accept several different input voltages ■ The most common input voltages are 12 Vac, 12 Vdc (for automotive) and 24 Vdc ■ The board also allows the user to select the output current by using jumpers setting only ■ The standard configuration of the board includes a full wave bridge rectifier that is required for an AC input STEVAL-ILL007V1 Description This reference design is a constant current driver for high brightness LEDs. The supply input voltage can be either 12 V AC or DC, and for DC it can range from 6 V to 24 V. It can also be adapted for reverse battery protection in automotive applications. The output is a constant current that can drive a single or multiple LEDs in series at 350 mA, 700 mA or 1.05 A. November 2007 Rev 1 For further information contact your local STMicroelectronics sales office. 1/4 www.st.com 4 2 1 Phoenix 2 pin J1 D4 STPS2L40U D7 STPS2L40U 2 1 D5 STPS2L40U D6 STPS2L40U + C2 220pf C1 1200uF 35V COMP SY NC VCC 1/8W 4.7k R3 C3 22nF 4 2 8 INH FB VREF OUT Q1 MMBT3906 3 2 1 2 1 2 1 2 1 GND 7 C5 4.7nf B 5 6 1 1/8W 240k R4 1 2.74K 2 1/8W R1 2 C4 22nf 1 Vcc E C 2 1 L5973D 2 1 Rs 0.68 Ohm 1/4W 1.33K 1/8W R2 D2 STPS2L40U 68uH L1 DO3316p-683 2 1 2/4 2 1 Rs2 0.68 Ohm 1/4W CONN PCB 2 2 1 J2 J3 J4 Rs3 0.68 Ohm 1/4W CONN PCB 2 2 1 TY CO 6 5 4 3 2 1 Figure 1. 2 1 1 U1 Board schematic STEVAL-ILL007V1 Board schematic Schematic STEVAL-ILL007V1 2 Revision history Revision history Table 1. Document revision history Date Revision 13-Nov-2007 1 Changes Initial release 3/4 STEVAL-ILL007V1 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 4/4