Post on 16-Oct-2015
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LEDTECH ELECTRONICS CORP.
NANYA ROAD,MUGANG ZHAOQING CITY GUANGDONG CHINA. TEL:86-758-2875541,2870651,2877464,2876185,2877017 FAX:86-758-2878014 Http://www.ledtech.com.tw
SPECIFICATION
PART NO. : LA(C)5622-S2 EWAK 0.56"(14.22mm) DUAL DIGIT DISPLAY
Approved by Checked by Prepared by
Tung Andy Feng
LA(C)5622-S2 0.56" DUAL DIGIT DISPLAY
VER.: 01 Date: 2007/01/30 Page: 1/5
Dimensions
8.0
19.0
25.0
12.7
14.22
1.3
8
15.24
0.5 DIA
2.54X8=20.32
3.5 MIN
8.13
MARK
1.68 DIA
DIGIT1 DIGIT2
Notes: 1. The slope angle of any PIN may be 5.0 Max. 2. All dimensions are in mm, tolerance is 0.25mm unless otherwise noted.
Internal Circuit Diagram
LA5622-S2
LC5622-S2
A
14
16
B
15
C
3
D
2
E
1
F
18
G
17
DP
4
A
13
11
B
10
C
8
D
6
E
5
F
12
G
7
DP
9
DIGIT 1 DIGIT 2
A
14
16
B
15
C
3
D
2
E
1
F
18
G
17
DP
4
A
13
11
B
10
C
8
D
6
E
5
F
12
G
7
DP
9
DIGIT 1 DIGIT 2
PIN. PIN.
PIN.
PIN. PIN.
PIN.
LA(C)5622-S2 0.56" DUAL DIGIT DISPLAY
VER.: 01 Date: 2007/01/30 Page: 2/5
Description
LED Chip Face Color Part No.
Material Emitting Color Surface Segments
LA5622-S2 EWAK GaP/GaP Green Grey White
LC5622-S2 EWAK GaP/GaP Green Grey White
Absolute Maximum Ratings at Ta=25
Parameter Symbol Rating Unit
Power Dissipation Per Segment PD 78 mW
Pulse Current(1/10Duty Cycle,0.1ms Pulse Width.)Per Chip
IFP 100 mA
Forward Current Per Chip IF 30 mA
Reverse (Leakage)Current Per Chip Ir 100 uA
Reverse Voltage Per Chip VR 5 V
Operating Temperature Range Topr. -25 to +85
Storage Temperature Range Tstg. -40 to +100
Soldering Temperature. Tsol. Dip Soldering: 260 for 5 sec.
Hand Soldering: 350 for 3 sec.
LA(C)5622-S2 0.56" DUAL DIGIT DISPLAY
VER.: 01 Date: 2007/01/30 Page: 3/5
Electrical and Optical Characteristics:
Parameter Symbol Condition Min. Typ. Max. Unit
Luminous Intensity Per Segment IV If=10mA/seg. 0.72 2.9 mcd
Forward Voltage Vf If=20mA/seg. 2.1 2.6 V
Peak Wavelength p If=20mA/seg. 567 nm
Dominant Wavelength d If=20mA/seg. 572 nm
Reverse Current Per Chip (Leakage Current Per Chip)
Ir Vr=5V 100 A
Spectrum Line Halfwidth If=20mA/seg. 30 nm
Response Time T ----------- 250 ns
Note: Customers special requirements are also welcome.
LA(C)5622-S2 0.56" DUAL DIGIT DISPLAY
VER.: 01 Date: 2007/01/30 Page: 4/5
Typical Electrical/Optical Characteristic Curves
(25 Ambient Temperature Unless Otherwise Noted)
Fig.1 RELATIVE INTENSITY VS. WAVELENGTH
Wavelength (nm)
Rel
ativ
e In
tens
ity
0.5
1.0
530 590 650470
100HZ
Fig.2 MAXIMUM TOLERABLE PEAK CURRENT VS. PULSE DURATION
Rat
io o
f Max
imum
O
pera
ting
Peak
Cur
rent
to
Tem
pera
ture
Der
ated
DC
Cur
rent
11
10
100
3KHZ
10
10KHZ
1KHZ
1000
300HZ
100
10000
OPERATION IN THIS REGION REOUIRES TEMPERATURE DERATING OF IDC MAXIMUM
tp - Pulse Duration - sIF
PEA
KI D
C M
AX
Forw
ard
Cur
rent
IF(m
A)
Forward Voltage VF(V)Fig .3 FORWARD CURRENT VS.FORWARD VOLTAGE PER CHIP
1.6
10
2.01.8 2.2 2.4 2.6
20
40
50
30
20
Forw
ard
Cur
rent
IF(m
A)
Ambient Temperature Ta (C)Fig.4 FORWARD CURRENT VS. DERATING CURVE
0 20 40 60 10080
30
40
10
50
Fig.5 RELATIVE LUMINOUS INTENSITY VS. FORWARD CURRENT
Rel
ativ
e Lu
min
ous I
nten
sity
4.0
N
orm
aliz
ed a
t 10m
A
6.0
8.0
Forward Current (mA)
10
10
2.0
0 20 30 40
30 Ambient Temperature Ta (C)Fig.6 LUMINOUS INTENSITY VS. AMBIENT TEMPERATURE
Rel
ativ
e Lu
min
ous I
nten
sity
-300.1
0.5
0.2
1.0
0-20 -10 10 20
2.0
6040 50 70
LA(C)5622-S2 0.56" DUAL DIGIT DISPLAY
VER.: 01 Date: 2007/01/30 Page: 5/5
Precautions in Use: PLEASE PAY SPECIAL ATTNTION TO THE NEXT POINT TO INCORPORATE OPTO DEVICE TO HIGH RELIABILITY
1. Do not bend the lead. Bending leads could cause breakage of leads or the degradation of the chip.
When bending is unavoidable, strictly follow the cautionary instruction below.
(1)Bend the leads before soldering.
(2)Bending a lead must be done by fixing a lead tightly and applying no stress on the resin part.
(3) The lead bending point must be more than 1.6mm away from the edge or the resin part.
(4)When a pin is tested for its endurance, bending degree should be 45and repeated no more than two times.
2. Setting a product by using tool such as a holder should be avoided.
When necessary, no stress should be applied to the resin part and lead to consider dimension tolerance,
thermal expansion, thermal contraction of holder, product and circuit board etc.
3. The hole pitch of a circuit board must fit into the lead pitch of products.
4. When soldering, care the followings:
(1)Do not heat a product under any stress (i.e.: twist) to leads.
(2)Do not heat ( for example, by soldering ) a product while out side force is applied the resin part.
(3 The lead bending point must be more than 1.6mm away from the edge or the resin part.
(4)Soldering with PC Board should be conducted with following conditions.
(a) For dip soldering
Pre-heating : 90 Max. for within 60 Sec. Soldering Max. : 2605(Solder Temp.) for within 5 Sec.
(b) Soldering iron : 350(Soldering iron tip) for within 3 Sec.
5. Flux could corrode the leads.Use flux that contains as little chlorine as possible (RA, RMA, less than 0.2 wt%) and need not be washed way. When, however, washing is necessary, partially wash around the leads, instead of the entire LED, by the following conditions. Cleaning agent : Methyl Alcohol Cleaning temp : 45Max. Cleaning time : 30Sec. Max.
6. Minimum amount of soldering flux should be used. Soldering flux should be applied only to the pin portion.
7. The following may damage products or LED chips: Attachment or contact of residual flux solvent
onto the product surface or to LED chips, or invasion of the same into the product.