Datasheet

©2010 Fairchild Semiconductor Corporation www.fairchildsemi.com
FOD2711A Rev. 1.0.0 8
FOD2711A — Optically Isolated Error Amplifier
Typical Performance Curves
V
COMP
– CATHODE VOLTAGE (V)
-1 0 1 2
Fig. 9b LED Current vs. Cathode Voltage
I
LED
– SUPPLY CURRENT (mA)
-150
-100
-50
0
50
100
150
T
A
= 25°C
V
COMP
= V
FB
Fig. 10 Reference Voltage vs. Ambient Temperature
T
A
– AMBIENT TEMPERATURE (°C)
-40 -20 0 20 40 60 80 100
V
REF
– REFERENCE VOLTAGE (V)
1.230
1.232
1.234
1.236
1.238
1.240
1.242
1.244
I
LED
=
Fig. 11 Reference Current vs. Ambient Temperature
T
A
– AMBIENT TEMPERATURE (°C)
I
REF
– REFERENCE CURRENT (nA)
120
-40 -20 0 20 40 60 80 100
140
160
180
200
220
240
260
280
Fig. 12 Off-State Current vs. Ambient Temperature
T
A
– AMBIENT TEMPERATURE (°C)
-40 -20 0 20 40 60 80 100
I
OFF
– OFF-STATE CURRENT (NA)
0.1
1
10
100
1000
V
C
C
= 13.2V
I
LED
= 10mA
R
1
= 10 kΩ
10mA
Fig. 9a LED Current vs. Cathode Voltage
V
COMP
– CATHODE VOLTAGE (V)
-1.0 -0.5 0.0 0.5 1.0 1.5
I
LED
– SUPPLY CURR
ENT (mA)
-15
-10
-5
0
5
10
15
T
A
= 25°C
V
COMP
= V
FB
V
F
– FORWARD VOLTAGE (V)
Fig. 13 Forward Current vs. Forward Voltage
I
F
– FORWARD CURRENT (mA)
5
10
15
20
25°C
0°C
70°C
0.9 1.0 1.1 1.2 1.3 1.4