Typical Performance Curves
Fig. 1 LED Forward Voltage vs. Forward Current
1.8
1.6
1.4
1.2
TA = -40oC
1.0
TA = 25oC
TA = 110oC
0.8
0.6
0.1
1
10
100
IF - LED FORWARD CURRENT (mA)
Fig. 3 Normalized CTR vs. Ambient Temperature
1.6
IF = 10mA
V = 10V
CE
1.4
Normalized to TA = 25oC
1.2
1.0
0.8
0.6
0.4
-40
-20
0
20
40
60
80
TA - AMBIENT TEMPERATURE (°C)
100 120
Fig. 5 Turn-off Time vs. Forward Current
1000
VCC = 10V
TA = 25oC
RL = 1KΩ
100
RL = 100Ω
RL = 10Ω
10
1
0
1
10
100
IF - FORWARD CURRENT (mA)
Fig. 2 Normalized CTR vs. Forward Current
VCE = 10V
TA = 25oC
Normalized to IF = 10 mA
TA = 0oC, 25oC
1
TA = -40oC
TA = 7 0oC
TA = 110oC
0.1
0.1
1
10
100
IF - FORWARD CURRENT (mA)
1000
100
10
Fig. 4 Turn-on Time vs. Forward Current
RL = 1k Ω
VCC = 10V
TA = 25oC
RL = 100Ω
RL = 10Ω
1
0.1
0.1
1
10
100
IF - FORWARD CURRENT (mA)
Fig. 6 Normalized Collector-Emitter Current
vs. Collector-Emitter Voltage
16
TA = 25oC
14
Normalized to:
IF = 1 mA, VCE = 5V
IF = 10 mA
12
10
IF = 5 mA
8
6
4
IF = 2 mA
2
IF = 1 mA
0
0 1 2 3 4 5 6 7 8 9 10
VCE - COLLECTOR-EMITTER VOLTAGE (V)
©2000 Fairchild Semiconductor Corporation
MOC8021M, MOC8050M Rev. 1.0.3
4
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