Datasheet

©2008 Fairchild Semiconductor Corporation www.fairchildsemi.com
FODM8071 Rev. 1.0.7 6
FODM8071 — 3.3V/5V Logic Gate Output Optocoupler with High Noise Immunity
Typical Performance Curves (Continued)
0.01
0.1
1
10
100
0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6
V
F
– FORWARD VOLTAGE (V)
I
F
– INPUT FORWARD CURRENT (mA)
I
FHL
– INPUT THRESHOLD CURRENT (mA)
I
DDH
– LOGIC HIGH OUTPUT SUPPLY CURRENT (mA)
T
A
– AMBIENT TEMPERATURE (°C)
T
A
– AMBIENT TEMPERATURE (°C)
T
A
= 110°C T
A
= 25°C T
A
= -40°C
4.0
3.5
3.0
2.5
2.0
-40 -20 0 20 40 60 80 100
Fig. 2 Input Threshold Current vs. Ambient Temperature
V
DD
V
DD
= 3.3V
2.0
2.5
3.0
3.5
4.0
4.5
5.0
-40 -20 0 20 40 60 80 100
Fig 4. Logic High Output Supply Current
vs. Ambient Temperature
I
DDL
– LOGIC LOW OUTPUT SUPPLY CURRENT (mA)
T
A
– AMBIENT TEMPERATURE (°C)
Fig 3. Logic Low Output Supply Current
vs. Ambient Temperature
V
DD
= 3.3V
V
DD
= 5.0V
I
F
= 0mA
2.0
2.5
3.0
3.5
4.0
4.5
-40 -20 0 20 40 60 80 100
V
DD
= 3.3V
V
DD
= 5.0V
I
F
= 10mA
5.0
Fig. 1 Input Forward Current vs. Forward Voltage
= 5.0V
5.5
5.0
4.5
4.0
3.5
3.0
5.0
4.5
4.0
3.5
3.0
2.5
0 2000 4000 6000 8000 10000
Fig. 5 Dynamic Logic Low Output Supply Current
vs. Input Frequency (V
DD
= 3.3V)
Fig. 6 Dynamic Logic Low Output Supply Current
vs. Input Frequency (V
DD
= 5.0V)
f – INPUT FREQUENCY (kHz)
T
A
= -40°C
Frequency = 10MHz
Duty Cycle = 50%
I
F
= 10mA
V
DD
= 3.3V
T
A
= 25°C
T
A
= 110°C
0 2000 4000 6000 8000 10000
Frequency = 10MHz
Duty Cycle = 50%
I
F
= 10mA
V
DD
= 5.0V
T
A
= 110°C
T
A
= -40°C
T
A
= 25°C
I
DDL
– DYNAMIC LOGIC LOW OUTPUT
SUPPLY CURRENT (mA)
f – INPUT FREQUENCY (kHz)
I
DDL
– DYNAMIC LOGIC LOW OUTPUT
SUPPLY CURRENT (mA)