LightKey
Datasheet of 2.00 inch 5x7 Dual Color Dot Matrix LED Display
LM20057A/BRG Series – 2.00 inch 5x7 Dual Color Dot Matrix LED Display
ATTENTION
OBSERVE PRECAUTIONS
FOR HANDLING
ELECTROSTATIC
DISCHARGE
SENSITIVE
DEVICES
Features
53.10 mm (2.00 inch) digit high
Dot size: Diameter 5.00 mm
Pitch: 7.62 mm
Wide viewing angle
Emitted colors: red and green
I.C. compatible
Low power consumption
White dot, grey or black face
RoHS compliant
Available options
Alternative emitting luminosity:
Standard or high brightness version
Alternative emitted color
Alternative dot color
Alternative face
Both CC and CA versions are available
Cropped terminal pins
Package Dimensions
1
COL.
2
3
4
5
ROW
1
2
7.62*6=45.72
53.10
3
4
5
6
7
PIN 1
7.62*4=30.48
37.80
5.
0
8.40
0.50
5.80
0.60
38.10
2.54*9=22.86
Notes:
1. All dimensions are in millimeters (inches), Tolerance is + 0.25mm (0.01inch) unless other wise noted.
2. Specifications are subject to change without notice.
3. The gap between the reflector and PCB shall not exceed 0.25mm.
SPEC NO: DS10121827
REV: A.4
CHECKED: Emily Zhou
APPROVED: M.H. Lin
PAGE: 1/3
HTTP://WWW.DISPLAY-LEDS.COM
TEL: 0086-574-86322282
DATE: Jul/20/2011
LightKey
Internal Circuit Diagram
Datasheet of 2.00 inch 5x7 Dual Color Dot Matrix LED Display
LM20057A (Common Cathode Row)
LM20057B (Common Anode Row)
COL.
PIN
NO.
PIN
ROW NO.
1
18 19
2
3 4
3
4
5
15 16
5 6 13 14 8 9
1
2
3
4
5
6
7
12
20
11
7
17
1
10
2
COL.
1
2
PIN
NO. 18 19 3 4
PIN
ROW NO.
1
12
3
4
5
8 9
15 16
5 6 13 14
2
3
4
5
6
7
= GREEN
= ORANGE
20
11
7
17
1
10
2
= GREEN
= ORANGE
Selection Guide
2.00 inch 5x7 Red-Green LED dot matrix module, Matrix Height: 53.10 mm(2.00 inch), External Dimensions:
37.80x53.10x8.40 mm (L x W x H)
Part No.
Description
Cathode Row
Standard
Brightness
LM20057CRG
LM20057DRG
GaAlAs
GaP
Ultra-High
Brightness
LM20057CURUG LM20057DURUG
AlGaInP
AlGaInP
Anode Row
Material
Chip
W LD
(nm)
640
Iv(mcd)@20mA
One Dot
Min.
8
Typ.
10
Color
Super Red
Green
Ultra Red
Ultra Green
568
640
573
7
30
30
9
45
45
SPEC NO: DS10121827
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
LightKey
Datasheet of 2.00 inch 5x7 Dual Color Dot Matrix LED Display
Electrical Characteristics & Absolute Maximum Ratings
LM20057A/BRG Electrical Characteristics
[1]
Absolute Maximum Ratings
[1]
VF(V)
Color
@ IF=20mA
[2]
Typ.
Super Red
Green
Ultra Red
Ultra Green
1.8
2.2
1.9
2.1
Max.
2.2
2.5
2.6
2.6
Reverse
Current
VR=5V
(uA)
30
30
30
300
Power
Dissipation
(mW)
60
80
60
75
DC Forward
Current
(mA)
25
30
30
30
Peak
Forward
Current
[3]
(mA)
100
100
100
100
Reverse
Voltage
(V)
5
5
5
Operating/ Storage Temp.:
-40 to +80 deg.;
Lead Solder Temp.:
260 deg. for 3-5 Sec. 2mm below package base
Notes:
1. At Ta = 25 °C.
2. Forward voltage at forward current = 20mA.
3. Peak forward current at 1/10 Duty Cycle, 0.1ms Pulse.
SPEC NO: DS10121827
REV: A.4
CHECKED: Emily Zhou
APPROVED: M.H. Lin
PAGE: 3/3
HTTP://WWW.DISPLAY-LEDS.COM
TEL: 0086-574-86322282
DATE: Jul/20/2011
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