DS300363
7/18/01
3 OF 4
www.fairchildsemi.com
Figure 1. Light Current vs. Radiant Intensity
Figure 3. Dark Current vs. Collector - Emitter Voltage
Figure 5. Dark Current vs. Ambient Temperature
Figure 2. Angular Response Curve
0.0
0.2
0.4
0.6
0.8
1.0
0.2
0.4
0.6
0.8
1.0
0
10
20
30
40
50
60
70
80
90
100
110
120
130
140
150
160
170
180
Figure 4. Light Current vs. Collector - Emitter Voltage
E
e
- Radiant Intensity (mW/cm
2
)
0.1
1
I
C
-
10
0
10
1
10
2
V
CE
= 5V
GaAs Light Source
V
CE
- Collector-Emitter Voltage (V)
0
5
10
15
20
25
30
I
C
-
10
-2
10
-1
10
0
10
1
V
CE
- Collector-Emitter Voltage (V)
0.1
1
10
I
L
-
10
-3
10
-2
10
-1
10
0
10
1
Normalized to:
V
CE
= 5V
Ie = 0.5mW/cm
T
A
= 25
o
C
2
Ie=1mW/cm
2
Ie=0.5mW/cm
2
Ie=0.2mW/cm
2
Ie=0.1mW/cm
2
T
A
- Ambient Temperature (
o
C)
25
50
75
100
I
C
-
10
-1
10
0
10
1
10
2
10
3
10
4
Normalized to:
V
CE
= 25V
T
A
= 25
o
C
V
CE
=25V
V
CE
=10V
PLASTIC SILICON
INFRARED PHOTOTRANSISTOR
QSD722
QSD723
QSD724