FOD8333V

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 Opt planar 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.

• 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
  • 100 ns Maximum Pulse Width Distortion
• Extended In