PLASTIC INFRARED
LIGHT EMITTING DIODE
QED522
Fig. 1 Normalized Radiant Intensity vs. Forward Current
I
e
- NORMALIZED RADIANT INTENSITY
10
Normalized to:
I
F
= 100 mA Pulsed
t
pw
= 100
µs
Duty Cycle = 0.1 %
T
A
= 25°C
2.0
I
F
= 50 mA
QED523
Fig. 2 Forward Voltage vs. Ambient Temperature
V
F
- FORWARD VOLTAGE (V)
I
F
= 100 mA
1.5
1
0.1
1.0
I
F
= 20 mA
I
F
= 10 mA
0.01
0.5
Normalized to:
I
F
Pulsed
t
pw
= 100
µs
Duty Cycle = 0.1 %
-20
0
20
40
60
80
100
0.001
1
10
100
1000
0.0
-40
I
F
- FORWARD CURRENT (mA)
T
A
- AMBIENT TEMPERATURE (°C)
Fig. 3 Normalized Radiant Intensity vs. Wavelength
1.0
Fig. 4 Radiation Diagram
110
120
130
140
100
90
80
70
60
50
40
30
20
10
0
1.0
0.8
0.6
0.4
0.2
0.0
0.2
0.4
0.6
0.8
1.0
NORMALIZED RADIANT INTENSITY
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
180
775
800
825
850
875
900
925
950
150
160
170
λ(nm)
© 2002 Fairchild Semiconductor Corporation
Page 3 of 4
6/13/02
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