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A702

更新时间： 2024-11-04 06:35:27
品牌 Logo 应用领域
广鹏 - ADDTEK 驱动器
页数 文件大小 规格书
1页 114K
描述
6 CHANNELS ADJUSTABLE CONSTANT CURRENT LED DRIVER

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A702 数据手册

  
A701/2  
6 CHANNELS ADJUSTABLE  
CONSTANT CURRENT LED DRIVER  
www.addmtek.com  
DESCRIPTION  
FEATURES  
A701/2 are adjustable constant current drivers for ꢀ6 constant-current output channels  
LED applications. Six regulated current ports are  
ꢀOutput current deviations: ±3% between channels,  
designed to provide uniform and pure DC constant  
current sinks for driving LEDs within a large range VF  
variation.  
±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 ꢀ Channel Letter, Indoor Lighting  
over temperature (150°C) damage. Also, the thermal pad  
ꢀ
LED Backlight Driver for MP3, MP4, Mobile  
Phone, Portable DVD, NB, and LCD TV.  
enhances the package power dissipation.  
TYPICAL APPLICATION CIRCUIT  
PACKAGE PIN OUT  
VLED  
CLED  
14  
13  
15  
16  
1
2
3
4
12  
STD  
ISET  
NC  
11 OUT6  
10 OUT5  
10  
9
1
VDD  
GND  
2
3
4
5
OE/OE  
OUT6  
OUT5  
OUT4  
ISET  
OUT1  
OUT2  
OUT3  
OUT1  
OUT2  
8
VDD  
OUT 6  
OUT 5  
OUT 3 OUT 4  
OUT1 OUT 2  
VDD  
9
OUT4  
7
CIN  
6
5
6
7
8
A701/A702  
Turn ON/OFF  
STD  
OE/OE  
ISET  
PWM Dimming  
GND  
RSET  
MSOP-EP-10 Pin  
QFN 3mm x 3mm  
(Top View)  
(Top View)  
ORDER INFORMATION  
MSOP-EP  
QFN 3x3  
16 pin  
_____  
VDD Range  
2.9V~ 6V  
6V~ 50V  
Note:  
G
J
OE/OE Pin Logic  
10 pin  
Low Enable  
High Enable  
Low Enable  
A701GFT  
A701JGT  
A702JGT-HE  
A702JGT  
A702GFT-HE  
A702GFT  
Part Number: A 7 0 1 □ □ □  
A 7 0 2 □ □ □－ H E  
Package Type.  
G: MSOP-EP; J:QFN-3×3  
EN Pin Logic.  
Packing.  
HE: High Enable  
T: Tape & Reel  
Package Process. F: Lead Free; G: Green  
Copyright © 2008 ADDtek Corp.  
1
DD082_A -- JUNE 2008  
1

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