The IR21726S is a high-voltage, high-speed, integrated gate driver designed for current regulation and management applications from Infineon Technologies. It is specifically designed to drive MOSFETs and IGBTs, offering advanced protection features and high efficiency.

Applications

• Electronic Ballasts: Driving the switching transistors in electronic ballasts for lighting applications.
• HID Lamp Ballasts: Used in high-intensity discharge (HID) lamp ballasts.
• Power Factor Correction (PFC) Circuits: Implemented in PFC circuits to improve power quality.
• DC-DC Converters: Driving power transistors in DC-DC converters for various applications.
• Current Regulation: Used in applications requiring precise current regulation.

Features

• High-Voltage Capability: Suitable for high-voltage applications.
• Integrated Gate Driver: Simplifies design and reduces component count.
• Over-Current Protection: Integrated over-current protection for enhanced safety.
• Under-voltage Lockout (UVLO): Prevents MOSFETs from operating in the linear region during low voltage conditions.
• Shutdown Function: Allows for external shutdown control.
• Logic Input Compatible: 5V logic compatible.

Benefits

• Simplified Design: Integrated gate driver simplifies circuit design.
• Enhanced Safety: Over-current protection prevents damage to the circuit and load.
• Improved Efficiency: Optimized gate drive reduces switching losses.
• Reduced Component Count: Integration reduces the number of external components needed.
• Easy to Use: Logic-level input compatibility simplifies implementation.

Additional Details

The IR21726S provides over-current protection and under-voltage lockout features for enhanced safety and reliability. It operates with logic-level inputs, simplifying its integration with microcontrollers and other control circuits. The device is available in a surface mount package. Detailed specifications can be found in the Infineon datasheet for this product.