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
ADDTEK [ ADDTEK CORP ]