A701

A701/2 www.addmtek.com DESCRIPTION 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. 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. 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. The thermal protection function protects IC from over temperature (150°C) damage. Also, the thermal pad enhances the package power dissipation. TYPICAL APPLICATION CIRCUIT VLED CLED 6 CHANNELS ADJUSTABLE CONSTANT CURRENT LED DRIVER FEATURES 6 constant-current output channels Output current deviations: ±3% between channels, ±7% between ICs. Output current programmable through external resistor. Constant output current range: 5mA~40mA Wide supply voltage range: 6V~50V (A702) 75V output sustaining voltage 1uA Shut-down current 2 kinds of control logic for Output Enable pin APPLICATIONS Automotive Interior Lighting Channel Letter, Indoor Lighting LED Backlight Driver for MP3, MP4, Mobile Phone, Portable DVD, NB, and LCD TV. PACKAGE PIN OUT GND VDD OE/OE 13 12 STD 11 OUT6 10 OUT5 9 OUT4 5 6 7 8 16 15 14 ISET 1 GND ISET OUT1 OUT2 OUT3 STD OE/OE ISET RSET GND 1 2 3 4 5 10 9 8 7 6 VDD OE/OE OUT6 OUT5 OUT4 NC 2 OUT1 3 OUT2 4 VDD CIN Turn ON/OFF PWM Dimming VDD OUT1 OUT 2 OUT 3 OUT 4 OUT 5 OUT 6 A701/A702 NC GND OUT3 GND GND MSOP-EP-10 Pin (Top View) QFN 3mm x 3mm (Top View) ORDER INFORMATION VDD Range 2.9V~ 6V 6V~ 50V N ote: OE/OE Pin Logic Low Enable High Enable Low Enable P art Number : _____ G MSOP-EP 10 pin J QFN 3x3 16 pin A701GFT A702GFT-HE A702GFT A701 □ □ □ A 7 0 2 □ □ □－ H E E N Pin Logic. P acking. HE: High Enable T: Tape & Reel A701JGT A702JGT-HE A702JGT P ackage Type. G: M SOP-EP; J: Q FN-3 × 3 P ackage Process. F: Lead Free; G: Green Copyright © 2008 ADDtek Corp. 1 DD082_A -- JUNE 2008