FOD852S Datasheet, PDF (5/10 Pages) Fairchild Semiconductor – 4-Pin High Operating Temperature Photodarlington Optocoupler

Typical Electrical/Optical Characteristic Curves (T_A = 25°C Unless otherwise specified.)
Fig. 7. Relative Current Transfer Ratio
vs. Ambient Temperature
1.0
IF = 1mA
VCE = 2V
0.8
0.6
0.4
0.2
0
20
40
60
80
100
AMBIENT TEMPERATURE TA (°C)
Fig. 8 Collector-Emitter Saturation Voltage
vs. Ambient Temperature
1.20
1.10
IF = 20mA
IC = 100mA
1.00
0.90
0.80
0.70
0.60
0.50
0.40
0.30
0.20
20
40
60
80
100
AMBIENT TEMPERATURE TA (°C)
Fig. 9 Collector Dark Current
1000
vs. Ambient Temperature
VCE = 200V
100
10
20
40
60
80
100
AMBIENT TEMPERATURE TA (°C)
1000
500
Fig. 10. Response Time
vs. Load Resistance
VCE = 2V
IC = 20mA
tr
200
100
tf
50
20
td
10
ts
5
2
1
0.1
1
10
LOAD RESISTANCE RL (kΩ)
Fig. 11. Frequency Response
0
VCE = 2V
IC = 2mA
-5
-10
-15
RL=1kΩ 100Ω
10Ω
-20
-25
0.1
1
10
100 500
FREQUENCY f (kHz)
Test Circuit for Response Time
RD
Input
Vcc
RL
Input
Output
Output
td
ts
tr
Test Circuit for Frequency Response
Vcc
RD
RL
Output
10%
90%
tf
©2006 Fairchild Semiconductor Corporation
FOD852 Rev. 1.2.1
5
www.fairchildsemi.com