Data Sheet

FOD814 Series, FOD817 Series — 4-Pin DIP Phototransistor Optocouplers
Typical Electrical/Optical Characteristic Curves (Continued)
T
A
= 25°C unless otherwise specified.
Test Circuit for Response Time
Test Circuit for Frequency Response
Input
R
Output
Input
R
D
Output
L
Vcc
td
tr
tf
ts
90%
10%
Output
R
D
L
R
Vcc
LOAD RESISTANCE R
L
(kΩ)
RESPONSE TIME (μs)
Fig. 15 Response Time
vs. Load Resistance
FREQUENCY f (kHz)
VOLTAGE GAIN A
V
(dB)
Fig. 16 Frequency Response
CE
V = 2 V
Ic = 2m A
Ta = 25°C
tr
tf
ts
td
R =10k
L
1k
100
V
CE
=2V
Ic = 2mA
Ta = 25°C
-20
0.1
0.1
0.2 0.5 1 2 5 10
0.2
0.5
1
2
5
10
20
50
100
0.2
-10
0
15 20.5
100010010
AMBIENT TEMPERATURE T
A
(°C)
Fig. 17 Collector Dark Current
vs. Ambient Temperature
COLLECTOR DARK CURRENT I
CEO
(nA)
-60 -40 -20 0 20 40 60 80 100 120
0.01
0.1
1
10
100
1000
10000
V
CE
= 20V
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