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Panasonic Semiconductor |
Infrared Light Emitting Diodes
LN152
GaAs Infrared Light Emitting Diode
For optical control systems
Features
High-power output, high-efficiency : PO = 10 mW (typ.)
Wide directivity, matched for external optical systems : θ = 100 deg.
Infrared light emission close to monochromatic light :
λP = 950 nm (typ.)
Optimum for mesuring instruments and control equipments
in conbination with silicon photodetectors
High-speed modulation
Absolute Maximum Ratings (Ta = 25˚C)
Parameter
Power dissipation
Forward current (DC)
Pulse forward current
Reverse voltage (DC)
Operating ambient temperature
Storage temperature
* f = 100 Hz, Duty cycle = 0.1 %
Symbol Ratings
PD 160
IF 100
IFP* 1.5
VR 3
Topr –25 to +85
Tstg –30 to +100
Unit
mW
mA
A
V
˚C
˚C
Unit : mm
2-ø0.45±0.05
21
2.54±0.2
1: Anode
2: Cathode
Electro-Optical Characteristics (Ta = 25˚C)
Parameter
Symbol
Conditions
min typ max Unit
Radiant power
Peak emission wavelength
Spectral half band width
Forward voltage (DC)
Reverse current (DC)
Capacitance between pins
Rise time
Fall time
Half-power angle
PO IF = 100mA
5 10
mW
λP IF = 100mA
950 nm
∆λ IF = 100mA
50 nm
VF IF = 100mA
1.3 1.6
V
IR VR = 3V
10 µA
Ct VR = 0V, f = 1MHz
60 pF
tr
tf
IFP = 100mA
1 µs
1 µs
θ The angle in which radiant intencity is 50%
100
deg.
1
Infrared Light Emitting Diodes
LN152
IF — Ta
120
100
80
60
40
20
0
– 25 0
20 40 60 80 100
Ambient temperature Ta (˚C )
IFP — Duty cycle
10 2
tw = 10µs
Ta = 25˚C
10
1
10 –1
10 –2
10 –3
10 –2
10 –1
1
10
Duty cycle (%)
10 2
IFP — VF
tw = 10µs
10 3 f = 100Hz
Ta = 25˚C
10 2
10
1
10 –1
10 –2
0
1234
Forward voltage VF (V)
5
∆PO — IFP
10 3
(1) tw = 10µs
f = 100Hz
(2) DC
Ta = 25˚C
10 2
10 (1)
1 (2)
10 –1
1.6
1.2
0.8
0.4
VF — Ta
IF = 100mA
50mA
10mA
10
1
∆PO — Ta
IF = 50mA
10 –2
1
10 10 2 10 3 10 4
Pulse forward current IFP (mA)
0
– 40 0
40 80 120
Ambient temperature Ta (˚C )
10 –1
– 40
0
40 80
Ambient temperature Ta (˚C )
λP — Ta
Spectral characteristics
1000
IF = 100mA
100
IF = 100mA
Ta = 25˚C
980 80
960 60
940 40
Directivity characteristics
0˚ 10˚ 20˚ 30˚
40˚
100
80 50˚
60 60˚
40 70˚
20 80˚
90˚
920 20
900
– 40
0
40 80 120
Ambient temperature Ta (˚C )
0
800 850 900 950 1000 1050 1100
Wavelength λ (nm)
2
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