Datasheet

DS300361 7/20/01 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 1.00.2
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
V
CE
- Collector-Emitter Voltage (V)
0.1 1 10
I
L
- Normalized Light Current
10
-3
10
-2
10
-1
10
0
10
1
E
e
- Radiant Intensity (mW/cm
2
)
0.0 0.2 0.4 0.6 0.8 1.0
I
C(ON)
- Light Current (mA)
0.1
1
10
100
Normalized to:
V
CE
= 5V
I
e
= 0.5mW/cm
T
A
= 25
o
C
2
I
e
=0.1mW/cm
2
I
e
=0.2mW/cm
2
I
e
=0.5mW/cm
2
I
e
=1mW/cm
2
T
A
- Ambient Temperature (
o
C
)
-40 -20 0 20 40 60 80 100
I
CEO
- Normalized Dark Current
10
-1
10
0
10
1
10
2
10
3
10
4
V
CE
=25V
V
CE
=10V
Normalized to:
V
CE
= 25V
T
A
= 25
o
C
V
CE
- Collector-Emitter Voltage (V)
0 5 10 15 20 25 30
I
CEO
- Dark Current (nA)
10
-3
10
-2
10
-1
10
0
10
1
PLASTIC SILICON INFRARED
PHOTOTRANSISTOR
QSD122 QSD123 QSD124