Rohm LB-502DN High efficiency, two-digit numeric display Datasheet

LB-502DN Series
LED displays
High efficiency, two-digit numeric displays
LB-502DN Series
The LB-502DN series were designed to meet the need
for multi-digit numeric displays. These LED numeric
displays use GaAsP on GaP for the emitting material
(with the exception of green) and are housed in an epoxy
resin package. They are two-digit displays with a
character height of 13.0mm.
zDimensions (Unit: mm)
25.0
12.7
(15.24)
2−φ1.25
0.5
(2.54)
(20.32)
3.5Min.
7.0
1.25
7.4
0.25
zFeatures
1) Height of character: 13.0mm
2) Common anode and common cathode configurations
are available for each color.
3) High efficiency reflectors are used to achieve a bright,
clear display.
4) The package surface is painted black and the
segments are colored the display color.
13.0
17.5
1.25
10˚
Tolerances are ±0.2 unless otherwise noted :
zSelection guide
Emitting color
Orange
Red
Green
Common
LB-502VD
LB-502DD ∗
LB-502MD
LB-502VN
Cathode
∗ Order-based production.
LB-502DN ∗
LB-502MN
Anode
zPin assignments
18 17 16 15 14 13 12 11 10
+
+
+
+
+
+
+
+
+
a1
a2
f1
f2
b1
b2
g1
e1
g2
c1
e2
c2
d1
+
Pin No. 1
d2
Digit 1 D.P1
+
+
+
+
+
2
6
3
4
5
Digit 2 D.P2
+
+
+
7
8
Pin No.
Function
Pin No.
Function
1
2
3
4
5
6
7
8
9
Segment "e1"
Segment "d1"
Segment "c1"
D.P1
Segment "e2"
Segment "d2"
Segment "g2"
Segment "c2"
D.P2
10
11
12
13
14
15
16
17
18
Segment "b2"
Segment "a2"
Segment "f2"
Digit 2 Common
Digit 1 Common
Segment "b1"
Segment "a1"
Segment "g1"
Segment "f1"
9
Rev.C
1/3
LB-502DN Series
LED displays
zInternal circuit schematic (example of common anode)
Dig.1
14
COM
Dig.2
13
a1 b1 c1 d1 e1 f1 g1 D.P1
16 15 3 2 1 18 17 4
COM
a2 b2 c2 d2 e2 f2 g2 D.P2
11 10 8 6 5 12 7 9
zAbsolute maximum ratings (Ta=25°C)
Parameter
Red
Symbol
Orange
Green
Unit
LB-502VD / VN LB-502DD / DN LB-502MD / MN
Power dissipation
PD
960
960
960
mW
Power dissipation
PD / seg
60
60
60
mW
Forward current
IF
20
20
20
mA
Peak forward current
IFP
60∗
60∗
60∗
mA
Reverse voltage
VR
5
5
5
V
Operating temperature
Topr
−25∼+75
˚C
Storage temperature
Tstg
−30∼+85
˚C
∗ Pulse width 1ms duty 1 / 5
zElectrical and optical characteristics (Ta=25°C)
Parameter
Min.
VF
Forward voltage
IF=10mA
−
Green
Orange
Red
Symbol Conditions
Typ. Max. Min.
2.0
2.8
−
Typ. Max. Min.
2.0
2.8
−
Typ. Max.
2.1
2.8
Unit
V
Reverse current
IR
VR=5V
−
−
100
−
−
100
−
−
100
µA
Peak wavelength
λP
IF=10mA
−
650
−
−
610
−
−
563
−
nm
Spectral line half
width
∆λ
IF=10mA
−
40
−
−
40
−
−
40
−
nm
Not designed for radiation resistance.
zLuminous intensity
λP
Color
Red
650
Type
LB-502VD
Min.
Typ.
Max.
Unit
5.6
16
−
mcd
5.6
16
−
mcd
9.0
25
−
mcd
LB-502VN
Orange
610
LB-502DD
LB-502DN
Green
563
LB-502MD
LB-502MN
Note : Measured at IF=10mA
Rev.C
2/3
LB-502DN Series
LED displays
zElectrical and optical characteristic curves
Ta=25°C
10.00
LB-502MD
LB-502MN
LB-502VD
LB-502VN
10
1
0.1
1
1.5
2
2.5
3
Relative Luminous Intensity
Forward Current:IF(mA)
100
Ta=25°C
1.00
0.10
0.01
1
10
100
Forward Voltage:VF(V)
Forward Current:IF(mA)
Fig.1 Forward Current - Forward Voltage
Fig.2 Relative Luminous Intensity - Forward Current
IF=10mA
10
0.8
0.6
0.4
-25 -15 -5
5
15 25 35 45 55 65 75
Case Temparature (°C)
Fig.3 Relative Luminous Intensity - Case Temperature
30Hz
100Hz
300Hz
1kHz
3kHz
10kHz
30kHz
1
300kHz
1.2
100kHz
(
Relative Luminous Intensity
1.4
IF peak Max.
Ratio of Maximum Tolerable peak
IF Max.
Current to Maximum Forward Current
)
1.6
1
1
10
100
1000
10000
100000
Pulse Duration : tw(µs)
Fig.4 Ratio of Maximum Tolerable Peak Current - Pulse Duration
120%
Forward Current (%)
100%
80%
60%
40%
20%
0%
-25 -15 -5
5 15 25 35 45 55 65 75 85
Ambient Temperature(°C)
Fig.5 Derating
Rev.C
3/3
Notice
Notes
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