A701 ADDTEK | Alldatasheet

Document overview

  • Manufacturer or author: Provided By alldatasheet.com(free datasheet download site)
  • PDF pages: 1

Technical content

www.addmtek.com Copyright © 2008 ADDtek Corp. 1 DD082_A -- JUNE 2008 A701/2

6 C HANNELS ADJUSTABLE

CONSTANT C URRENT LED D RIVER DESCRIPTION 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

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, R SET, 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. „ Automotive Interior Lighting „ Channel Letter, Indoor Lighting „ LED Backlight Driver for MP3, MP4, Mobile Phone, Portable DVD, NB, and LCD TV . TYPICAL APPLICATION CIRCUIT PACKAGE PIN OUT Turn ON/OFF A701/A702 STD OUT 2 VDD GND OUT1 OUT 3 CIN OUT 4 OUT 5 OUT 6 ISET RSET PWM Dimming OE/OE CLED VLED VDD ISET OE/OE VDD OUT6 GND MSOP-EP-10 Pin (Top View) OUT1 5OUT3 OUT2 OUT4 OUT5 16 15 14 13 5 6 7 8 NC GND QFN 3mm x 3mm (Top View) OUT1 OUT2 OUT3 OUT4 NC VDD OE/OE GND GND OUT5 OUT6 ISET GND STD ORDER INFORMATION MSOP-EP QFN 3x3 VDD Range OE /OE Pin Logic G 10 pin J 16 pin 2.9V~ 6V Low Enable A701GFT A701JGT High Enable A702GFT-HE A702JGT-HE 6V~ 50V Low Enable A702GFT A702JGT Package Process. F: Lead Free; G: Green Packing. T: Tape & Reel Part Number : A 7 0 1 □ □ □ A 7 0 2 □ □ □－ H E Note: Package Type. G: MSOP-EP; J: QFN-3 ×3 EN Pin Logic. HE: High Enable