RYC9901

RYC9901 Multi-LED Boost GENERAL DESCRIPTION The RYC9901 device is a low-cost integrated boost converter IC specifically designed for driving multiLED arrays. It can be operated from a single Lithium cell or two alkaline cells, and drives up to 7 LEDs. All LEDs are in series, and the RYC9901 device regulates at constant current, yielding uniform illumination. The RYC9901 device features an active low enable/ dimming pin and thermal protection, and is available in a space-saving SOT23-6 package. Raychem Power Management ICs www.tycopowercomponents.com Document: SCD 25493 Status: Released Rev.: D Rev Date: March 8, 2005 FEATURES Constant current regulation Up to 700mW output power 1.9V to 5.5V input voltage range 25V maximum output voltage 1µA maximum shutdown current SOT-23-6 package APPLICATIONS Backlight for LCD panels Cellular telephones Handy Terminals PDAs Portable lighting Battery-powered backlight applications TYPICAL APPLICATION SCHEMATIC 16 2 RYC9901 5 34 ENABLE / DIM Tyco Electronics Corporation 308 Constitution Drive, Menlo Park, CA 94025 Tel: (800) 227-4856 Fax: (800) 227-4866 © 2005 Tyco Electronics Corporation. 1 of 12 RYC9901 Multi-LED Boost ORDERING INFORMATION Part Description RYC9901 Part Number E67308-000 MATERIALS INFORMATION ROHS Compliant ELV Compliant Raychem Power Management ICs www.tycopowercomponents.com Document: SCD 25493 Status: Released Rev.: D Rev Date: March 8, 2005 Package SOT-23(6L) Pb-Free Tape and Reel ...