Datasheet

©2000 Fairchild Semiconductor Corporation www.fairchildsemi.com
MOC8021M, MOC8050M Rev. 1.0.6 5
MOC8021M, MOC8050M — Photodarlington Optocoupler (No Base Connection)
Typical Performance Curves
Fig. 2 Normalized CTR vs. Forward Current
I
F
- FORWARD CURRENT (mA)
NORMALIZED CTR – CURRENT TRANSFER RATIO
Fig. 3 Normalized CTR vs. Ambient Temperature
NORMALIZED CTR – CURRENT TRANSFER RATIO
T
A
- AMBIENT TEMPERATURE (°C)
I
F
- LED FORWARD CURRENT (mA)
V
F
- FORWARD VOLTAGE (V)
Fig. 1 LED Forward Voltage vs. Forward Current
1.8
1.6
1.4
1.2
1.0
0.8
0.6
1.6
1.4
1.2
1.0
0.8
0.6
0.4
1
0.1
0.1 1 10 100
-40 -20 0 20 40 60 80 100 120
0.1 1 10 100
T
A
=25
o
C
T
A
=-40
o
C
T
A
= 110
o
C
V
CE
=10V
T
A
=25
o
C
Normalized to I
F
=10mA
T
A
=-40
o
C
T
A
=0
o
C, 25
o
C
T
A
=7
0
o
C
T
A
=110
o
C
I
F
=10mA
V
CE
=10V
Normalized to T
A
=25
o
C
Fig. 5 Turn-off Time vs. Forward Current
1000
100
10
1
V
CC
=10V
T
A
=25
o
C
R
L
=1K
Ω
R
L
= 100
Ω
R
L
=10
Ω
012345678910
0
2
4
6
8
10
12
14
16
T
A
=25
o
C
I
F
=1mA
I
F
=2mA
I
F
=5mA
I
F
=10mA
Normalized to:
I
F
=1mA,V
CE
=5V
Fig. 6 Normalized Collector-Emitter Current
vs. Collector-Emitter Voltage
V
CE
- COLLECTOR-EMITTER VOLTAGE (V)
I
F
- FORWARD CURRENT (mA)
0110100
NORMALIZED I
CE
- COLLECOTR-EMITTER CURRENT
T
OFF
- TURN-ON TIME (
µs)
Fig. 4 Turn-on Time vs. Forward Current
V
CC
=10V
T
A
=25
o
C
R
L
=1k
Ω
R
L
= 100
Ω
R
L
=10
Ω
I
F
- FORWARD CURRENT (mA)
T
ON
- TURN-ON TIME (
µs)
0.1 1 10 100
0.1
1
10
100
1000