Document
SPECIFICATIONS FOR LED DISPLAYS
14.2mm(0.56") Seven Segments Dual Digit LDD056 -20 Series
WENRUN OPTOELECTRONIC
WENRUN LED Displays LDD056 Series
Features:
High luminous intensity output. High efficiency, low power consumption. Extremely low current. Luminous evenly distributed on each segment. Low development cost.
LDD056A/B/C/D -20
Descriptions:
Industrial standard size. These display provide excellent reliability in bright ambient light. These devices are made with white segments and gray surface.
Applications:
Audio equipment or Instrument panels. General use for digital indicators. Multimedia product.
Selection Guide:
Part No.
Anode LDD056B/DUE-20
Cathode LDD056A/CUE-20
LDD056B/DUY-20 LDD056A/CUY-20
LDD056B/DAG-20 LDD056A/CAG-20
Material AlGaInP AlGaInP AlGaInP
Chip Emitting Color
High Super Red High Super Yellow High Super Green
Lens Color
White Diffused
Prepared date June 2005
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WENRUN LED Displays LDD056 Series
Absolute Maximum Rating Ta=25
Parameter
Symbol
High Super Red
High Super Green
High Super Yellow
Unit
Power Dissipation/Segment
Peak Forward Current /Segment (Duty 1/10@ 1KHz)
Continuous Forward Current /Segment
Recommend use current /Segment
Reverse Voltage /Segment
Operating Temperature Range
Pd IFP IF IF VR Topr
60 80 25 5~10 5
60 80 25 5~10 5 -25~ +75
60 80 25 5~10 5
mW mA mA mA V
Storage Temperature Range
Tstg
-30 ~ +85
Solder Temperature
Tsol
260 5
Notes 1 This is the limit current . It is not allowed to use when the product work continuously. 2 It is recommended that the product is driven by TTL,CMOS. 3 Soldering time 5 seconds.
Electrical Optical Characteristics Ta=25
Parameter
Luminous Intensity /Segment
Forward Voltage /Segment
Reverse Current /Segment Dominant Wavelength
Spectral Line Half Width
Symbol
High Super Red
Typ. Max.
High Super Green
Typ. Max.
High Super Yellow
Typ. Max.
Test Unit
Condition
IV 75 -- 45 -- 75 -- mcd IF=10mA
VF
2.0 2.5 2.0 2.5 2.0 2.5
V IF=20mA
IR -- 50 -- 50 -- 50 uA VR=5V
d 625 -- 570 -- 590 -- nm IF=20mA
30 -- 30 -- 30 -- nm IF=20mA
Prepared date June 2005
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WENRUN LED Displays LDD056 Series
Package Dimensions:
8°
8.1 1.35
PIN1
12.7 25
14.2 (.56 ) 19
DIG.1
DIG.2
A
FB
G
E D
C RDP
8
0.5
2.54*8=20.32
15.24
NOTES • All dimensions are in millimetres (mm), Tolerance is • Specifications are subject to change without notice.
0.25mm unless otherwise noted.
Internal Circuit:
Common Cathode
14
DIG.1
13 DIG.2
ABC
16 15 3
Common Anode
D E F G RDP
ABC
2 1 18 17 4
11 10 8
LDD056A
14
DE
65
13
F G RDP
12 7 9
DIG.1
DIG.2
A B C D E F G RDP
A B C D E F G RDP
16 15 3 2 1 18 17 4
11 10 8 6 5 12 7 9
LDD056B
Prepared date June 2005
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Package Dimensions:
8°
PIN1
12.7 25
WENRUN LED Displays LDD056 Series
8.1 1.35
14.2 (.56 ) 19
DIG.1
DIG.2
A
FB
G
E D
C RDP
8
0.5
2.54*4=10.16
15.24
NOTES • All dimensions are in millimetres (mm), Tolerance is • Specifications are subject to change without notice.
0.25mm unless otherwise noted.
Internal Circuit:
Common Cathode
8 D IG .1
7 D IG .2
A B C D E F G RDP
A B C D E F G RDP
10 9
Common Anode
14 3 6 5
8 D IG .1
2 LDD056C
7 D IG .2
A B C D E F G RDP
A B C D E F G RDP
1 0 9 1 4 3 6 5 2 LDD056D
Prepared date June 2005
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WENRUN LED Displays LDD056
Reliability Test Items and Conditions
Series
NO Test Item
Test Conditions
1
Temperature Cycle
-30 25 85 25 30min 5min 30min 5min
2 High Temp. Storage
Ta=85
3 Temp.& Humidity Test
Ta=85 RH=85%
4 Low Temp. Storage
Ta=-30
5 Operating Life Test
Ta=25 5 DC IF=15mA
6 Solder Heat
Tsol=260 5 10s
Duration 50clycles 1000hours 1000hours 1000hours 1000hours
1times
Sample Ac/Re 100 0/1 100 0/1 100 0/1 100 0/1 100 0/1 20 0/1
Typical Electro-Optical Characteristics Curves
Relative Luminous Intensity (%)
Spectrum Distribution
100
AG UY UE
Ta=25
75
50
Forward Current If (mA)
25
0 500 550 600 650 700 750
Wavelength λd (nm)
Forward Current vs. Forward Voltage 50
40
Forward Current Derating Curve 50
40
Forward Current If (mA)
30
UE
20 UY 10 AG
0 1.2 1.6 2.0 2.4 2.8 3.2
Forward Voltage(Vf)-volts
30
20
10 0
0 20 40 60 80 100 Ambient Temperature Ta(° C)
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Rev.:3 Page 5 of 5
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