LightKey

SPEC NO: DS10121721

REV: A.4

CHECKED: Emily Zhou

APPROVED: M.H. Lin

PAGE: 2/3

HTTP://WWW.DISPLAY-LEDS.COM

TEL: 0086-574-86322282

DATE: Jul/20/2011

Datasheet of 0.56 inch Four Digit 7 Segment LED Display

Internal Circuit Diagram

LD5645A (Common Cathode)

11

4

72 1 10 5

3

A

DIG.2

12

BC D E

G

F

DIG.1

D

AB C

E

F G

9

DIG.3

C

AB

D

E

F

8

UC

GA B C D

E

6

G

FLC

DIG.4

LD5645B (Common Anode)

11

4

72 1 10 5

3

A

DIG.2

C

BE

DG

F

12

DIG.1

D

AB C

E

G

F

9

DIG.3

C

AB

D

F

E

8

UC

GA

C

BE

D

6

G

FLC

DIG.4

Selection Guide

Four Digits 7 Segment LED Display, Digit Height: 14.20mm(0.56inch), External Dimensions:

50.30x19.00x8.00mm (L x W x H )

Part No.

Chip

Iv@IF=20mA

Iv@IF=20mA

One Seg

One DP

Common

Cathode

Common

Anode

Material

Color

WLD

Min.

Typ.

Min.

Typ.

LD5645AR

LD5645BR

GaAlAs

Super Red

640

8

10

8

10

LD5645AD

LD5645BD

GaAlAs

Hi-Red

640

18

25

18

25

LD5645AO

LD5645BO

GaAsP

Orange

625

7

9

7

9

LD5645AY

LD5645BY

GaAsP

Yellow

588

8

10

8

10

LD5645AG

LD5645BG

GaP

Green

568

7

9

7

9

LD5645AUR

LD5645BUR

AlGaInP

Ultra Red

640

30

45

30

45

LD5645AUO

LD5645BUO

AlGaInP

Ultra Orange

625

45

60

45

60

LD5645AUA

LD5645BUA

AlGaInP

Ultra Amber

605

30

45

30

45

LD5645AUY

LD5645BUY

AlGaInP

Ultra Yellow

595

30

45

30

45

LD5645AUG

LD5645BUG

AlGaInP

Ultra Green

573

30

45

30

45

LD5645APG

LD5645BPG

InGaN

Pure Green

525

120

300

120

300

LD5645AUB

LD5645BUB

InGaN

Ultra Blue

470

30

45

30

45

LD5645AUW

LD5645BUW

InGaN

Ultra White

\

100

120

100

120

Unit:

\

\

\

nm

mcd

mcd

mcd

mcd