UC3726N

Isolated Drive Transmitter 16Pin PDIP

DESCRIPON

The UC1726 Isolated Drive Transmitter, and its companion chip, the UC1727 Isolated High Side IGBT Driver, provide a unique solution to driving isolated power IGBTs. They are particularly suited to drive the high side devices on a high voltage H-bridge. The UC1726 device transmits the drive logic and drive power, along with transferring and receiving fault information with the isolated gate circuit using a low cost pulse transformer.

Dissipation FEATURES

• 750mA Output Drive, Source or Sink

• 8 to 35V Operation

• Transmits Drive Logic and Power through Low Cost Transformer

• Programmable Operating Frequency

• Up to 750kHz Operation

• Improved Output Control Algorithm Minimizes Output Jitter

• Fault Logic Monitors Isolated High Side IGBT Driver UC1727 for Faults

• User Programmable Fault Timing Screens False Fault Signals

• Shutdown Mode Disables On Chip Logic Reference for Low Standby Power

• Optional External Biasing of Logic Circuitry can Reduce Overall Power