Fairchild's 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-RDS(ON) 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
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 33μs
Under-Voltage Lockout (UVLO) with Hysteresis
Fast Switching Speed Over Full Operating Temperature Range
250ns Maximum Propagation Delay
100ns Maximum Pulse Width Distortion
Extended Industrial Temperate Range: -40°C to 100°C
Safety and Regulatory Approvals
UL1577, 4,243 VRMS for 1 Minute
DIN-EN/IEC60747-5-5: 1,414 VPEAK Working Insulation Voltage Rating / 8,000 VPEAK Transient Isolation Voltage Rating
