LIGITEK ELECTRONICS CO.,LTD.
Property of Ligitek Only
FOUR DIGIT LED DISPLAY (0.28 Inch)
LFD211/22-XX
DATA SHEET
DOC. NO
REV.
DATE
:
:
QW0905- LFD211/22-XX
A
: 14 - Feb - 2005
LIGITEK ELECTRONICS CO.,LTD.
Property of Ligitek Only
PART NO. LFD211/22-XX
Page 1/7
Package Dimensions
32.1(1.264")
5.8
(0.228")
DP1
7.0
(0.28)
DIG.1
DIG.2
DP2
DIG.3
DIG.4
10.0
(0.394")
8.0
(0.315")
LFD211/22-XX
LIGITEK
□
0.45
TYP.
2.54X5=12.7
(0.5")
PIN NO.1
4.8
±
0.5
A
F
E
D
G
B
C
DP
Note : 1.All dimension are in millimeters and (lnch) tolerance is
±
0.25(0.01") unless otherwise noted.
2.Specifications are subject to change without notice.
LIGITEK ELECTRONICS CO.,LTD.
Property of Ligitek Only
PART NO. LFD211/22-XX
Page 2/7
Internal Circuit Diagram
LFD2112-XX
11
7
4
2
1
10
5
A
B
C
D
E
F
G
LFD2122-XX
DIG. 1
12
11
7
4
2
1
10
5
A
B
C
D
E
F
G
A
B
C
D
E
F
G
DIG. 1
12
A
B
C
D
E
F
G
DIG. 2
DIG. 2
9
9
3
DP1
DP2
A
B
C
D
E
F
G
3
DP1
DP2
A
B
C
D
E
F
G
DIG. 3
8
DIG. 3
8
A
B
C
D
E
F
G
DIG. 4
6
A
B
C
D
E
F
G
DIG. 4
6
LIGITEK ELECTRONICS CO.,LTD.
Property of Ligitek Only
PART NO. LFD211/22-XX
Page 3/7
Electrical Connection
PIN NO.
1
2
3
4
5
6
7
8
9
10
11
12
Anode E
Anode D
LFD2112-XX
PIN NO.
1
2
3
4
5
6
7
8
9
10
11
12
LFD2122-XX
Cathode E
Cathode D
Cathode DP1,DP2
Cathode C
Cathode G
Common Anode Dig.4
Cathode B
Common Anode Dig.3
Common Anode Dig.2,DP1,DP2
Cathode F
Cathode A
Common Anode Dig.1
Anode DP1,DP2
Anode C
Anode G
Common Cathode Dig.4
Anode B
Common Cathode Dig.3
Common Cathode Dig.2,DP1,DP2
Anode F
Anode A
Common Cathode Dig.1
LIGITEK ELECTRONICS CO.,LTD.
Property of Ligitek Only
PART NO. LFD211/22-XX
Page 4/7
Absolute Maximum Ratings at Ta=25
℃
Ratings
Parameter
Symbol
G
Forward Current Per Chip
Peak Forward Current Per
Chip (Duty 1/10,0.1ms
Pulse Width)
Power Dissipation Per Chip
Reverse Current Per Any Chip
Operating Temperature
Storage Temperature
I
F
30
120
mA
UNIT
I
FP
mA
PD
Ir
T
opr
Tstg
100
10
-25 ~ +85
-25 ~ +85
mW
μ
A
℃
℃
Solder Temperature 1-16 Inch Below Seating Plane For 3 Seconds At 260
℃
Part Selection And Application Information(Ratings at 25
℃
)
Electrical
PART NO
common
cathode
Material Emitted
or anode
CHIP
Common
Cathode
GaP
Green
Common
Anode
λ
P
(
nm)
△λ
(nm)
Min.
Vf(v)
Iv(mcd)
Typ.
IV-M
Typ. Max. Min.
LFD2112-XX
565
30
1.7
2.1
2.6
1.35 2.35
2:1
LFD2122-XX
Note : 1.The forward voltage data did not including
±
0.1V testing tolerance.
2. The luminous intensity data did not including
±
15% testing tolerance.
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