DESCRIPTION
Additional feature includes output voltage limiting when LEDs are disconnected. GM19371 is available in SOT-26 package. FEATURES
Inherently matched LED current Drives up to 126LEDs (9S14P) from a 12V supply 36V rugged bipolar switch Fast 1.2MHz switching frequency Over Voltage Protection, 30V Application Cellular phones PDAs, Handheld Computers Digital Cameras MP3 Player GPS Receivers MR16 Lighting Typical Application Circuits 10µH VIN 6V to 18V C1 4.7µF 6 VIN 1 SW OVP 5 D1 14 Strings in Parallel 9 LED in Series C2 4.7µF GM19371 4 CTRL GND 2 FB 3 RSET 20mA x 14 DIM Figure 1 GM19371 typical application 1 Free Datasheet GM19371V2.01 GM19371 BOOST WHITE LED DRIVER WITH OVP Marking Information and Pin Configurations (Top View) SOT26 VIN 6 OVP 5 CTRL 4 70YWW 1 SW 2 GND 3 FB 70: Device Code, Green Product Y: Year WW: Week code Pin Descriptions Pin Number 1 2 3 Pin Name SW GND FB Pin Function This is the collector of the internal NPN power switch. Connect to inductor and diode.
Gamma
