A701/2 6 CHANNELS ADJUSTABLE CONSTANT CURRENT LED DRIVER www.addmtek.com DESCRIPTION FEATURES A701/2 are adjustable constant current drivers for LED applications. Six regulated current ports are designed to provide uniform and pure DC constant current sinks for driving LEDs within a large range VF variation. 6 constant-current output channels Output current deviations: ±3% between channels, ±7% between ICs. Output current programmable through external resistor. A701/2 provide users 6-channel constant current ports to match LEDs with equal current. Users may program the output current from 5mA to 40mA through an external resistor, RSET, which gives user flexibility in controlling the light intensity of LEDs. Constant output current range: 5mA~40mA Wide supply voltage range: 6V~50V (A702) 75V output sustaining voltage 1uA Shut-down current Two kinds of control logic, active high and active low, for Output Enable pin (OE/OE pin) are provided for user’s varies applications. It could precisely adjust LED brightness from 0% to 100% via OE/OE pin with Pulse Width Modulation signal. 2 kinds of control logic for Output Enable pin APPLICATIONS Automotive Interior Lighting The thermal protection function protects IC from over temperature (150°C) damage. Also, the thermal pad enhances the package power dissipation. Channel Letter, Indoor Lighting LED Backlight Driver for MP3, MP4, Mobile Phone, Portable DVD, NB, and LCD TV. OE/OE CLED NC VLED VDD PACKAGE PIN OUT GND TYPICAL APPLICATION CIRCUIT 16 15 14 13 ISET 1 VDD VDD OUT1 OUT 2 OUT 3 OUT 4 OUT 5 OUT 6 CIN 10 VDD 9 OE/OE 3 8 OUT6 4 7 OUT5 OUT3 5 6 OUT4 OUT1 3 10 OUT5 OUT2 4 9 OUT4 A701/A702 OE/OE ISET 5 GND RSET MSOP-EP-10 Pin 6 7 8 GND 2 11 OUT6 GND ISET OUT1 OUT2 NC 2 GND STD 1 OUT3 Turn ON/OFF PWM Dimming GND 12 STD QFN 3mm x 3mm (Top View) (Top View) ORDER INFORMATION _____ MSOP-EP QFN 3x3 VDD Range OE/OE Pin Logic 2.9V~ 6V Low Enable A701GFT A701JGT High Enable A702GFT-HE A702JGT-HE Low Enable A702GFT A702JGT 6V~ 50V Note: Part Number : G 10 pin 16 pin A701 □ □ □ A 7 0 2 □ □ □－ H E Package Type. G: MSOP-EP; J: QFN-3×3 Package Process. F: Lead Free; G: Green Copyright © 2008 ADDtek Corp. J EN Pin Logic. Packing. 1 HE: High Enable T: Tape & Reel DD082_A -- JUNE 2008