The IR2520DS is a high-voltage, high-speed power MOSFET driver from International Rectifier (now Infineon Technologies). This driver is designed to control power MOSFETs and IGBTs in various power electronic applications, providing fast switching speeds and robust protection features.

Applications

• Switch Mode Power Supplies (SMPS): Used in power supplies for computers, servers, and other electronic devices.
• Motor Drives: Drives MOSFETs in motor control applications for industrial and automotive systems.
• Uninterruptible Power Supplies (UPS): Used in UPS systems to switch between battery and AC power.
• Lighting Ballasts: Drives MOSFETs in electronic ballasts for fluorescent and LED lighting.
• Class D Amplifiers: Used as drivers in Class D audio amplifiers for efficient power amplification.

Features

• High-Side and Low-Side Driver: Integrated high-side and low-side drivers for half-bridge configurations.
• Bootstrap Operation: Uses bootstrap circuitry for driving the high-side MOSFET.
• Programmable Dead-Time: Allows for adjustable dead-time between high-side and low-side switching.
• Overcurrent Protection: Protects the MOSFETs and driver from damage due to overcurrent conditions.
• Undervoltage Lockout (UVLO): Prevents operation when the supply voltage is too low.
• High-Speed Switching: Enables fast switching speeds for efficient power conversion.

Benefits

• Efficient Power Conversion: Fast switching speeds minimize switching losses, improving efficiency.
• Protection Against Overloads: Overcurrent protection prevents damage to the MOSFETs and driver.
• Simplified Design: Integrated high-side and low-side drivers reduce component count and design complexity.
• Reliable Operation: UVLO ensures reliable operation by preventing operation at low supply voltages.
• Adjustable Dead-Time: Allows for optimization of switching performance and efficiency.

Additional Details

The IR2520DS typically operates at a voltage of up to 600V. It is available in a SOIC package. The operating temperature range is typically -40°C to +125°C. The programmable dead-time feature allows designers to optimize the switching performance and efficiency of the power converter. This driver is designed for applications requiring high efficiency, fast switching speeds, and robust protection features.