The FOD8333 is an advanced 2.5 A output current IGBT drive optocoupler capable of driving medium-power IGBTs with ratings up to 1,200 V and 150 A. It is suited for fast-switching driving of power IGBTs and MOSFETs in motor-control inverter applications and high-performance power systems. The FOD8333 offers protection features necessary for preventing fault conditions that lead to destructive thermal runaway of IGBTs.The device utilizes Fairchild’s proprietary Optoplanar® coplanar packaging technology and optimized IC design to achieve reliable high isolation and high noise immunity, characterized by high common-mode rejection and power supply rejection specifications. The device is housed in a wide-body, 16-pin, small-outline, plastic package.The gate-driver channel consists of an aluminum gallium arsenide (AlGaAs) light-emitting diode (LED) optically coupled to an integrated high-speed driver circuit with a low-R MOSFET output stage. The fault-sense channel consists of an AlGaAs LED optically coupled to an integrated high-speed feedback circuit for fault sensing.
●Features
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● Input LED Drive Facilitates Receiving Digitally Encoded Signals from PWM Output
● Optically Isolated Fault-Sensing Feedback
● Active Miller Clamp to Shut Off IGBT During High dv/dt without Negative Supply Voltage
● High Noise Immunity Characterized by Common Mode Rejection – 35 kV/μs Minimum, VCM = 1500 VPEAK
● 2.5 A Peak Output Current Driving Capability for Medium Power IGBT
● P-Channel MOSFETs at Output Stage Enable Output Voltage Swing Close to Supply Rail (Rail-to-Rail Output)
● Wide Supply Voltage Range: 15 V to 30 V
● Integrated IGBT Protection
● Desaturation Detection
● “Soft” IGBT Turn-Off
● Automatic Fault Reset after Fixed Mute Time, Typically 33 μs
● Under-Voltage Lockout (UVLO) with Hysteresis
● Fast Switching Speed Over Full Operating Temperature Range
● 250 ns Maximum Propagation Delay
● Extended Industrial Temperate Range:
● 100 ns Maximum Pulse Width Distortion
● Safety and Regulatory Approvals
● –40°C to 100°C
● DIN-EN/IEC60747-5-5: 1,414 VPEAK Working Insulation Voltage Rating / 8,000 VPEAK Transient Isolation Voltage Rating
● UL1577, 4,243 VRMS for 1 Minute
● 8 mm Creepage and Clearance Distances
