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FOD3120 — High Noise Immunity, 2.5 A Output Current, Gate Drive Optocoupler
February 2016
FOD3120
High Noise Immunity, 2.5 A Output Current,
Gate Drive Optocoupler
Features
• High Noise Immunity Characterized by 35 kV/μs
Minimum Common Mode Rejection
• 2.5 A Peak Output Current Driving Capability for Most
1200 V/20 A IGBT
• Use of P-channel MOSFETs at Output Stage Enables
Output Voltage Swing Close to The Supply Rail
• Wide Supply Voltage Range from 15 V to 30 V
• Fast Switching Speed
– 400 ns max. Propagation Delay
– 100 ns max. Pulse Width Distortion
• Under Voltage LockOut (UVLO) with Hysteresis
• Extended Industrial Temperate Range,
-40°C to 100°C Temperature Range
• Safety and Regulatory Approved
– UL1577, 5000 V
RMS
for 1 min.
– DIN EN/IEC60747-5-5
• R
DS(ON)
of 1
Ω
(typ.) Offers Lower Power Dissipation
• >8.0 mm Clearance and Creepage Distance
(Option ‘T’ or ‘TS’)
• 1,414 V Peak Working Insulation Voltage (V
IORM
)
Description
The FOD3120 is a 2.5 A Output Current Gate Drive
Optocoupler, capable of driving most medium power
IGBT/MOSFET. It is ideally suited for fast switching
driving of power IGBT and MOSFETs used in motor
control inverter applications, and high performance
power system.
It utilizes Fairchild’s coplanar packaging technology,
Optoplanar
®
, and optimized IC design to achieve high
noise immunity, characterized by high common mode
rejection.
It consists of a gallium aluminum arsenide (AlGaAs) light
emitting diode optically coupled to an integrated circuit
with a high-speed driver for push-pull MOSFET output
stage.
Related Resources
• FOD3150, 1 A Output Current, Gate Drive
Optocoupler Datasheet
•
www.fairchildsemi.com/products/optoelectronics/
Applications
•
•
•
•
Industrial Inverter
Uninterruptible Power Supply
Induction Heating
Isolated IGBT/Power MOSFET Gate Drive
Functional Block Diagram
NC
1
8
V
DD
Package Outlines
8
8
1
1
ANODE
2
7
V
O2
6
V
O1
CATHODE
3
NC
4
5
V
SS
(1)
8
1
8
1
Figure 1. Functional Block Diagram
Figure 2. Package Outlines
Note:
1. 0.1
μF
bypass capacitor must be connected between pins 5 and 8
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