Data Sheet
©2003 Fairchild Semiconductor Corporation www.fairchildsemi.com
FOD3120 Rev. 1.4 4
FOD3120 — High Noise Immunity, 2.5 A Output Current, Gate Drive Optocoupler
Absolute Maximum Ratings (T
A
= 25ºC unless otherwise specified)
Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be
operable above the recommended operating conditions and stressing the parts to these levels is not recommended.
In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability.
The absolute maximum ratings are stress ratings only.
Notes:
3. Pulse Width, P
W
≤ 1 μs, 300 pps
4. Exponential Waveform, I
O(PEAK)
≤ | 2.5 A | (≤ 0.3 μs)
5. Maximum pulse width = 10 μs, maximum duty cycle = 1.1%
6. Derate linearly above 87°C, free air temperature at a rate of 0.77 mW/°C
7. No derating required across temperature range.
8. Functional operation under these conditions is not implied. Permanent damage may occur if the device is sub-
jected to conditions outside these ratings.
Recommended Operating Conditions
The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended
operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not
recommend exceeding them or designing to absolute maximum ratings.
Symbol Parameter Value Unit
T
STG
Storage Temperature -55 to +125 ºC
T
OPR
Operating Temperature -40 to +100 ºC
T
J
Junction Temperature -40 to +125 ºC
T
SOL
Lead Wave Solder Temperature
(refer to page 21 for reflow solder profile)
260 for 10sec ºC
I
F(AVG)
Average Input Current 25 mA
I
F(PEAK)
Peak Transient Forward Current
(3)
1A
f Operating Frequency
(4)
50 kHz
V
R
Reverse Input Voltage 5 V
I
O(PEAK)
Peak Output Current
(5)
3.0 A
V
DD
– V
SS
Supply Voltage
0 to 35
V
T
A
≥ 90°C 0 to 30
V
O(PEAK)
Peak Output Voltage 0 to V
DD
V
t
R(IN)
, t
F(IN)
Input Signal Rise and Fall Time 500 ns
PD
I
Input Power Dissipation
(6)(8)
45 mW
PD
O
Output Power Dissipation
(7)(8)
250 mW
Symbol Parameter Value Unit
T
A
Ambient Operating Temperature -40 to +100 °C
V
DD
– V
SS
Power Supply 15 to 30 V
I
F(ON)
Input Current (ON) 7 to 16 mA
V
F(OFF)
Input Voltage (OFF) 0 to 0.8 V