GENERAL PURPOSE 6-PIN
PHOTOTRANSISTOR OPTOCOUPLERS
4N25
4N37
4N26
H11A1
4N27
H11A2
4N28
H11A3
4N35
H11A4
4N36
H11A5
TYPICAL PERFORMANCE CURVES
Fig. 1 LED Forward Voltage vs. Forward Current
(Black Package)
1.8
1.8
Fig. 2 LED Forward Voltage vs. Forward Current
(White Package)
1.7
1.7
V
F
- FORWARD VOLTAGE (V)
1.6
V
F
- FORWARD VOLTAGE (V)
1.6
1.5
1.5
1.4
T
A
= -55°C
1.3
T
A
= 25°C
1.4
T
A
= -55°C
1.3
T
A
= 25°C
1.2
T
A
= 100°C
1.2
1.1
T
A
= 100°C
1.1
1.0
1
10
100
1.0
1
10
100
I
F
- LED FORWARD CURRENT (mA)
I
F
- LED FORWARD CURRENT (mA)
Fig.3 Normalized CTR vs. Forward Current
(Black Package)
1.4
V
CE
= 5.0V
T
A
= 25°C
1.2
Normalized to
I
F
= 10 mA
1.6
Fig.4 Normalized CTR vs. Forward Current
(White Package)
V
CE
= 5.0V
T
A
= 25°C
Normalized to
I
F
= 10 mA
1.4
1.2
1.0
NORMALIZED CTR
NORMALIZED CTR
0
5
10
15
20
1.0
0.8
0.8
0.6
0.6
0.4
0.4
0.2
0.2
0.0
0.0
0
2
4
6
8
10
12
14
16
18
20
I
F
- FORWARD CURRENT (mA)
I
F
- FORWARD CURRENT (mA)
Fig. 5 Normalized CTR vs. Ambient Temperature
(Black Package)
1.6
1.4
Fig. 6 Normalized CTR vs. Ambient Temperature
(White Package)
1.4
I
F
= 5 mA
1.2
I
F
= 5 mA
NORMALIZED CTR
1.2
I
F
= 10 mA
1.0
NORMALIZED CTR
1.0
I
F
= 10 mA
0.8
0.8
0.6
I
F
= 20 mA
0.6
Normalized to
I
F
= 10 mA
T
A
= 25°C
0.4
I
F
= 20 mA
Normalized to
I
F
= 10 mA
T
A
= 25°C
0.4
-75
-50
-25
0
25
50
75
100
125
0.2
-60
-40
-20
0
20
40
60
80
100
T
A
- AMBIENT TEMPERATURE (°C)
T
A
- AMBIENT TEMPERATURE (°C)
© 2003 Fairchild Semiconductor Corporation
Page 6 of 15
5/7/03
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