Datasheet

©2010 Fairchild Semiconductor Corporation www.fairchildsemi.com
FOD8318 Rev. 1.1.2 10
FOD8318 — 2.5 A Output Current, IGBT Drive Optocoupler with Active Miller Clamp, Desaturation Detection, and Isolated Fault Sensing
Typical Performance Characteristics
I
OH
– OUTPUT HIGH CURRENT (A)
Figure 2. Output High Current (I
OH
) vs. Temperature
Figure 4. Low Level Output Current (I
OLF
) vs.
Output Voltage (V
O
)
Figure 5. Output High Voltage (V
OH
–V
DD2
) vs. Temperature
Figure 3. Output Low Current (I
OL
) vs. Temperature
7
6
5
4
3
2
1
0
-40 -20 0 20 40 60 80 100
T
A
– TEMPERATURE (°C)
V
O
= V
DD2
– 6 V
V
O
= V
DD2
– 3 V
I
OL
– OUTPUT LOW CURRENT (A)
7
6
5
4
3
2
1
0
(V
OH
–V
DD2
) – HIGH OUTPUT VOLTAGE DROP (V)
0.1
0
-0.1
-0.2
-0.3
-0.4
-0.5
-40 -20 0 20 40 60 80 100
T
A
– TEMPERATURE (°C)
V
O
= V
SS
+ 6 V
V
O
= V
SS
+ 3 V
V
DD2
– V
SS
= 30 V
V
DD1
= 5 V
I
OLF
– LOW LEVEL OUTPUT CURRENT
DURING FAULT CONDITIONS (mA)
225
200
175
150
125
100
75
50
25
0 5 10 15 20 25 30
V
O
– OUTPUT VOLTAGE (V)
-40 -20 0 20 40 60 80 100
T
A
– TEMPERATURE (°C)
V
DD2
– V
SS
= 30 V
V
DD1
= 5 V
V
DD2
– V
SS
= 30 V
V
DD1
= 5 V
I
FAULTL
– FAULT CURRENT (mA)
Figure 1. Fault Logic Low Output Current (I
FAULTL
) vs.
Fault Logic Low Output Voltage (V
FAULTL
)
50
40
30
20
10
0
01234 5
V
FAULTL
– FAULT VOLTAGE (V)
V
DD1
= 5 V
VIN+ = 5 V
I
LED2+
= 10 mA
T
A
= 25 °C
T
A
= -40 °C
I
O
= -650 μA
I
O
= -100 mA
T
A
= 25 °C
T
A
= 100 °C
V
DD2
– V
SS
= 30 V
V
DD1
= 5 V
V
IN+
= 5 V
V
OL
– OUTPUT LOW VOLTAGE (V)
0.25
0.20
0.15
0.10
0.05
0
-40 -20 0 20 40 60 80 100
T
A
– TEMPERATURE (°C)
V
DD2
– V
SS
= 30 V
V
DD1
= 5 V
V
IN+
= 0 V
I
O
= 100 mA
Figure 6. Output Low Voltage (V
OL
) vs. Temperature