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Copyright

© 2008 ADDtek Corp.

1

DD082_A -- JUNE 2008

A701/2

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

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

OUT 4

OUT 5 OUT 6

ISET

PWM Dimming

OE/OE

7

6

1

2

3

10

9

8

ISET

OE/OE

VDD

OUT6

GND

MSOP-EP-10 Pin

(Top View)

OUT1

4

5

OUT3

OUT2

OUT4

OUT5

16

15

14

13

1

2

3

4

12

11

10

9

5

6

7

8

NC

QFN 3mm x 3mm

(Top View)

OUT1

OUT2

OUT4

OUT5

OUT6

ISET

STD

ORDER INFORMATION

MSOP-EP

QFN 3x3

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