Description
The FOD8343 series is a 4.0 A maximum peak output current gate
drive optocoupler, capable of driving medium−power IGBT /
MOSFETs. It is ideally suited for fast−switching driving of power
IGBT and MOSFET used in motor−control inverter applications, and
high−performance power systems.
The FOD8343 series utilizes stretched body package to achieve
8 mm creepage and clearance distances (FOD8343T), and optimized
IC design to achieve reliably high−insulation voltage and high−noise
immunity.
The FOD8343 series consists of an Aluminum Gallium Arsenide
(AlGaAs) Light−Emitting Diode (LED) optically coupled to an
integrated circuit with a high−speed driver for push−pull MOSFET
output stage. The device is housed in a stretched body, 6−pin, small
outline, plastic package.

Features
• FOD8343T − 8 mm Creepage and Clearance Distance, and 0.4 mm
Insulation Distance to Achieve Reliable and High−Voltage Insulation
• 4.0 A Maximum Peak Output Current Driving Capability for
Medium−Power IGBT/MOSFET
♦ Use of P−Channel MOSFETs at Output Stage Enables Output
Voltage Swing Close to Supply Rail
• 50 kV/s Minimum Common Mode Rejection Wide Supply Voltage
Range: 10 V to 30 V
• Fast Switching Speed Over Full Operating Temperature Range
♦ 210 ns Maximum Propagation Delay
♦ 65 ns Maximum Pulse Width Distortion Under−Voltage Lockout
(UVLO) with Hysteresis
• Extended Industrial Temperate Range: −40°C to 100°C
• Safety and Regulatory Approvals:
♦ UL1577, 5,000 VRMS for 1 Minute
♦ DIN EN/IEC60747−5−5, 1,140 V Peak Working Insulation Voltage

Application
• AC and Brushless DC Motor Drives
• Industrial Inverter
• Uninterruptible Power Supply Induction Heating
• Isolated IGBT/Power MOSFET Gate Drive