Data Sheet
©2003 Fairchild Semiconductor Corporation www.fairchildsemi.com
FOD3120 Rev. 1.4 5
FOD3120 — High Noise Immunity, 2.5 A Output Current, Gate Drive Optocoupler
Isolation Characteristics
Apply over all recommended conditions, typical value is measured at T
A
= 25ºC
Notes:
9. Device is considered a two terminal device: Pins 2 and 3 are shorted together and Pins 5, 6, 7 and 8 are shorted
together.
10. 5,000 V
RMS
for 1 minute duration is equivalent to 6,000 VAC
RMS
for 1 second duration.
Electrical Characteristics
Apply over all recommended conditions, typical value is measured at V
DD
= 30 V, V
SS
= Ground, T
A
= 25°C
unless otherwise specified.
Symbol Parameter Conditions Min. Typ. Max. Unit
V
ISO
Input-Output Isolation
Voltage
T
A
= 25ºC, R.H.< 50%, t = 1.0min,
I
I-O
≤ 10 μA, 50 Hz
(9)(10)
5,000 V
RMS
R
ISO
Isolation Resistance V
I-O
= 500 V
(9)
10
11
Ω
C
ISO
Isolation Capacitance V
I-O
= 0 V, Freq = 1.0 MHz
(9)
1pF
Symbol Parameter Conditions Min. Typ. Max. Unit
V
F
Input Forward Voltage I
F
= 10 mA 1.2 1.5 1.8 V
Δ(V
F
/ T
A
)
Temperature Coefficient
of Forward Voltage
-1.8 mV/ºC
BV
R
Input Reverse Breakdown
Voltage
I
R
= 10 μA5 V
C
IN
Input Capacitance f = 1 MHz, V
F
= 0V 60 pF
I
OH
High Level Output
Current
(4)
V
O
= V
DD
– 3 V -1.0 -2.0 -2.5
A
V
O
= V
DD
– 6 V -2.0 -2.5
I
OL
Low Level Output
Current
(4)
V
O
= V
SS
+ 3 V 1.0 2.0 2.5
A
V
O
= V
SS
+ 6 V 2.0 2.5
V
OH
High Level Output Voltage
I
F
= 10 mA, I
O
= -2.5 A V
DD
– 6.25 V V
DD
– 2.5 V
V
I
F
= 10 mA, I
O
= -100 mA V
DD
– 0.25 V V
DD
– 0.1 V
V
OL
Low Level Output Voltage
I
F
= 0 mA, I
O
= 2.5 A V
SS
+ 2.5 V V
SS
+ 6.25 V
V
I
F
= 0 mA, I
O
= 100 mA V
SS
+ 0.1 V V
SS
+ 0.25 V
I
DDH
High Level Supply Current
V
O
= Open,
I
F
= 7 to 16 mA
2.8 3.8 mA
I
DDL
Low Level Supply Current
V
O
= Open,
V
F
= 0 to 0.8 V
2.8 3.8 mA
I
FLH
Threshold Input Current
Low to High
I
O
= 0 mA, V
O
> 5 V 2.3 5.0 mA
V
FHL
Threshold Input Voltage
High to Low
I
O
= 0 mA, V
O
< 5 V 0.8 V
V
UVLO+
Under Voltage Lockout
Threshold
I
F
= 10 mA, V
O
> 5 V 11.5 12.7 13.5 V
V
UVLO–
I
F
= 10 mA, V
O
< 5 V 10.0 11.2 12.0 V
UVLO
HYS
Under Voltage Lockout
Threshold Hysteresis
1.5 V