LightKey
Datasheet of 0.70 inch 5x7 Dot Matrix LED Display
LM7057G/H Series - 0.70 inch 5x7 Dot Matrix LED Display
ATTENTION
OBSERVE PRECAUTIONS
FOR HANDLING
ELECTROSTATIC
DISCHARGE
SENSITIVE
DEVICES
Features
17.80mm (0.70inch) digit high
Dot size: Diameter 1.90mm
Pitch: 2.54mm
Wide viewing angle
Range of emitted colors
I.C. compatible
Low power consumption
White segment
RoHS compliant
Available options
Alternative emitting luminosity:
Standard or high brightness version
Alternative emitted color
Alternative segment color
Alternative font
Common Cathode is available
Cropped terminal pins
Package Dimensions
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: DS10121796
REV: A.4
CHECKED: Emily Zhou
TEL: 0086-574-86322282
APPROVED: M.H. Lin
PAGE: 1/3
HTTP://WWW.LTKEY.COM
DATE: Jul/20/2011
LightKey
Internal Circuit Diagram
LM7057G (Common Cathode Row)
Datasheet of 0.70 inch 5x7 Dot Matrix LED Display
LM7057H (Common Anode Row)
Selection Guide
Part No.
Common
Cathode Row
Common
Anode Row
Chip
Material
GaAlAs
GaAlAs
Iv@IF=20mA
WLD
627
627
610
588
568
627
610
605
595
573
525
470
\
nm
8
18
7
8
7
30
45
30
30
30
120
30
100
mcd
One Dot
Min.
Typ.
10
25
9
10
9
45
60
45
45
45
300
45
120
mcd
Color
Super Red
Hi-Red
Orange
Yellow
Green
Ultra Red
Ultra Orange
Ultra Amber
Ultra Yellow
Ultra Green
Pure Green
Ultra Blue
Ultra White
\
LM7057GR
LM7057GD
LM7057GO
LM7057GY
LM7057GG
LM7057GUR
LM7057GUO
LM7057GUA
LM7057GUY
LM7057GUG
LM7057GPG
LM7057GUB
LM7057GUW
Unit:
\
LM7057HR
LM7057HD
LM7057HO
LM7057HY
LM7057HG
LM7057HUR
LM7057HUO
LM7057HUA
LM7057HUY
LM7057HUG
LM7057HPG
LM7057HUB
LM7057HUW
\
GaAsP
GaAsP
GaP
AlGaInP
AlGaInP
AlGaInP
AlGaInP
AlGaInP
InGaN
InGaN
SMD
SPEC NO: DS10121796
HTTP://WWW.LTKEY.COM
REV: A.4
CHECKED: Emily Zhou
TEL: 0086-574-86322282
APPROVED: M.H. Lin
PAGE: 2/3
DATE: Jul/20/2011
LightKey
Electrical
Characteristics
Color
V
F
@
I
F
=20mA
[2]
Typ.
Super Red
Hi-Red
Orange
Yellow
Green
Ultra Red
Ultra Orange
Ultra Amber
Ultra Yellow
Ultra Green
Pure Green
Ultra Blue
Ultra White
Unit:
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.
[1]
Datasheet of 0.70 inch 5x7 Dot Matrix LED Display
Electrical Characteristics & Absolute Maximum Ratings
Absolute Maximum Ratings
[1]
DC
Forward
Current
25
25
30
30
30
30
30
30
30
30
30
30
30
mA
Peak
Forward
Current
[3]
100
100
100
100
100
100
100
100
100
100
100
100
100
mA
Reverse
Current
VR=5V
30
30
30
30
30
30
30
30
30
30
30
30
30
uA
Power
Dissipation
60
60
80
80
80
60
65
65
65
75
110
120
120
mW
Max.
2.2
2.2
2.5
2.5
2.5
2.6
2.6
2.6
2.6
2.6
4.0
4.0
4.0
V
Per Dot
Per Dot
Per Dot
Per Dot
Per Dot
Per Dot
Per Dot
Per Dot
Per Dot
Per Dot
Per Dot
Per Dot
Per Dot
\
1.8
1.8
2.1
2.1
2.2
1.9
2.0
2.0
2.0
2.1
3.5
3.5
3.5
V
SPEC NO: DS10121796
HTTP://WWW.LTKEY.COM
REV: A.4
CHECKED: Emily Zhou
TEL: 0086-574-86322282
APPROVED: M.H. Lin
PAGE: 3/3
DATE: Jul/20/2011
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