The AUIRS2112STR, manufactured by Infineon (formerly International Rectifier), is a high-voltage, high-speed power MOSFET and IGBT driver. It's designed for applications requiring efficient driving of power devices in half-bridge configurations. The driver features integrated bootstrap functionality and protection features to ensure reliable operation.

Applications

• Motor Drives: Used in motor drive circuits for controlling the speed and torque of electric motors in various applications.
• Half-Bridge Converters: Employed in half-bridge DC-DC converters and inverters for power conversion applications.
• Power Supplies: Utilized in power supplies for driving power MOSFETs or IGBTs in high-frequency switching topologies.
• Induction Heating: Incorporated in induction heating systems to drive power devices for generating high-frequency AC currents.
• Lighting Ballasts: Used in electronic ballasts for driving high-intensity discharge (HID) lamps and fluorescent lamps.

Features

• High-Voltage Operation: Supports high-voltage operation, allowing for driving of high-voltage power MOSFETs and IGBTs.
• High-Speed Switching: Features high-speed switching capabilities, reducing switching losses and improving efficiency.
• Integrated Bootstrap Diode: Includes an integrated bootstrap diode for simplified high-side gate drive.
• Overcurrent Protection: Offers overcurrent protection to prevent damage to the driver and power devices.
• Undervoltage Lockout (UVLO): Incorporates undervoltage lockout to ensure proper operation during power-up and power-down.

Benefits

• Efficient Power Device Driving: Provides efficient and reliable driving of power MOSFETs and IGBTs.
• Simplified Design: Integrated bootstrap functionality simplifies the design of high-side gate drive circuits.
• Protection Features: Overcurrent protection and undervoltage lockout enhance the reliability and safety of the system.
• Reduced Switching Losses: High-speed switching reduces switching losses, improving overall efficiency.
• Compact Solution: Small package size allows for use in space-constrained applications.

Technical Specifications

The AUIRS2112STR typically features a high-side and low-side gate drive voltage of up to 600V. The gate drive current is typically 200mA/400mA (source/sink). The propagation delay is very low, around 125ns, allowing for high-frequency operation. The device operates over a temperature range of -40°C to +125°C. These specifications make it suitable for a wide range of power conversion and motor control applications.