QEC112_05 Datasheet, PDF (3/4 Pages) Fairchild Semiconductor – Plastic Infrared Light Emitting Diode

Typical Performance Curves
Fig. 1 Normalized Radiant Intensity vs. Forward Current
10
Normalized to:
I_F = 100 mA Pulsed
t_pw = 100 µs
Duty Cycle = 0.1 %
1 _{TA = 25˚C}
0.1
0.01
0.001
1
10
100
I_F - FORWARD CURRENT (mA)
1000
Fig. 3 Forward Voltage vs. Ambient Temperature
2.0
I_F = 50 mA
1.5
I_F = 100 mA
1.0
I_F = 20 mA
I_F = 10 mA
0.5 _{Normalized to:}
I_F Pulsed
t_pw = 100 µs
Duty Cycle = 0.1 %
0.0
-40
-20
0
20
40
60
80
100
T_A - AMBIENT TEMPERATURE (˚C)
Fig. 2 Coupling Characteristics of QEC11X And QSC11X
1.0
Normalized to:
d=0
I_F Pulsed
0.8
t_pw = 100 µs
Duty Cycle = 0.1 %
V_CC = 5 V
0.6
R_L = 100 Ω
T_A = 25˚C
0.4
I_F = 100 mA
0.2
I_F = 20 mA
0.0
0
1
2
3
4
5
6
7
8
LENS TIP SEPARATION (INCHES)
Fig. 4 Normalized Intensity vs. Wavelength
1.0
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0.0
875
900
925
950
975
1000
1025
λ (nm)
Fig. 5 Radiation Diagram
100° ^90° 80°
110°
70°
120°
130°
60°
50°
140°
40°
150°
30°
160°
20°
170°
10°
180°
0
1.0 0.8 0.6 0.4 0.2 0.0 0.2 0.4 0.6 0.8 1.0
3
QEC112, QEC113 Rev. 1.0.0
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