LightKey LM12257BO Lm12257a/b series â 1.20 inch 5x7 square dot matrix led display Datasheet

LightKey
Datasheet of 1.20 inch 5x7 Square Dot Matrix LED Display
LM12257A/B Series – 1.20 inch 5x7 Square Dot Matrix LED Display
ATTENTION
OBSERVE PRECAUTIONS
FOR HANDLING
ELECTROSTATIC
DISCHARGE
SENSITIVE
DEVICES
Features
Available options
¾
28.60 mm (1.2 inch) matrix height
¾
¾
Dot size: 4x4mm
¾
Pitch: 4.1mm
¾
Wide viewing angle
¾
Range of emitted colors
¾
I.C. compatible
¾
Low power consumption
¾
White dot, grey or black face
¾
RoHS compliant
Alternative emitting luminosity:
Standard or high brightness version
¾
¾
¾
¾
¾
Alternative emitted color
Alternative dot and face color
Alternative font
Both CA and CC versions are available
Cropped terminal pins
20 . 5 0
2 8 . 6( 1 . 1 . 14 )
3.0(0.12 )
4 . 1× 6= 2 4. 6
3 . 0( 0 . 1 2 )
Package Dimensions
4.1×4=16.4
20.3(0.81 )
COL.
ROW 1 2
1
3 4
5
1 0. 3
2
3
4
5
Ø0.51
6
7
2.54×6=15.24
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: DS10121810
REV: A.4
HTTP://WWW.DISPLAY-LEDS.COM
CHECKED: Emily Zhou
APPROVED: M.H. Lin
TEL: 0086-574-86322282
PAGE: 1/3
DATE: Jul/20/2011
LightKey
Datasheet of 1.20 inch 5x7 Square Dot Matrix LED Display
Internal Circuit Diagram
LM12257B (Common Anode Row)
COL. 1
PIN
NO. 13
PIN
NO.
2
3
4
5
3
4, 11
10
6
LM12257A (Common Cathode Row)
COL. 1
PIN
NO. 13
PI N
NO.
1 9
1 9
2 14
2 14
3 8
3 8
4
4
5,12
2
3
4
5
3
4,11
10
6
5,12
5 1
5 1
6 7
6 7
7 2
7 2
CODE N
CODE M
Selection Guide
Part No.
Chip
Common
Common
Cathode Row
Anode Row
Material
Iv@IF=20mA
Color
One Dot
WLD
Min.
Typ.
LM12257AR
LM12257BR
GaAlAs
Super Red
640
8
10
LM12257AD
LM12257BD
GaAlAs
Hi-Red
640
18
25
LM12257AO
LM12257BO
GaAsP
Orange
625
7
9
LM12257AY
LM12257BY
GaAsP
Yellow
588
8
10
LM12257AG
LM12257BG
GaP
Green
568
7
9
LM12257AUR
LM12257BUR
AlGaInP
Ultra Red
640
30
45
LM12257AUO
LM12257BUO
AlGaInP
Ultra Orange
625
45
60
LM12257AUA
LM12257BUA
AlGaInP
Ultra Amber
605
30
45
LM12257AUY
LM12257BUY
AlGaInP
Ultra Yellow
595
30
45
LM12257AUG
LM12257BUG
AlGaInP
Ultra Green
573
30
45
LM12257APG
LM12257BPG
InGaN
Pure Green
525
120
300
LM12257AUB
LM12257BUB
InGaN
Ultra Blue
470
30
45
LM12257AUW
LM12257BUW
SMD
Ultra White
\
100
120
Unit:
\
\
\
nm
mcd
mcd
SPEC NO: DS10121810
REV: A.4
HTTP://WWW.DISPLAY-LEDS.COM
CHECKED: Emily Zhou
APPROVED: M.H. Lin
TEL: 0086-574-86322282
PAGE: 2/3
DATE: Jul/20/2011
LightKey
Datasheet of 1.20 inch 5x7 Square Dot Matrix LED Display
Electrical Characteristics & Absolute Maximum Ratings
Electrical
Absolute Maximum Ratings[1]
[1]
Characteristics
Color
VF@
Reverse
IF=20mA[2]
Current
Typ.
Max.
VR=5V
Power
Dissipation
DC
Peak
Forward
Forward
Current
Current[3]
Super Red
Per Dot
1.8
2.2
30
60
25
100
Hi-Red
Per Dot
1.8
2.2
30
60
25
100
Orange
Per Dot
2.1
2.5
30
80
30
100
Yellow
Per Dot
2.1
2.5
30
80
30
100
Green
Per Dot
2.2
2.5
30
80
30
100
Ultra Red
Per Dot
1.9
2.6
30
60
30
100
Ultra Orange
Per Dot
2.0
2.6
30
65
30
100
Ultra Amber
Per Dot
2.0
2.6
30
65
30
100
Ultra Yellow
Per Dot
2.0
2.6
30
65
30
100
Ultra Green
Per Dot
2.1
2.6
30
75
30
100
Pure Green
Per Dot
3.5
4.0
30
110
30
100
Ultra Blue
Per Dot
3.5
4.0
30
120
30
100
Ultra White
Per Dot
3.5
4.0
30
120
30
100
Unit:
\
V
V
uA
mW
mA
mA
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: DS10121810
REV: A.4
HTTP://WWW.DISPLAY-LEDS.COM
CHECKED: Emily Zhou
APPROVED: M.H. Lin
TEL: 0086-574-86322282
PAGE: 3/3
DATE: Jul/20/2011
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