ON Semiconductor MC33262DG Power Factor Controller

The ON Semiconductor MC33262DG is a high-performance active power factor controller specifically designed for use in power supply systems and power conversion applications. This integrated circuit aims to enhance power efficiency and reduce energy loss by correcting the power factor of electronic systems to be closer to unity. The MC33262DG is suitable for a wide range of products, including switch-mode power supplies, power adapters, and lighting systems, making it a versatile choice for designers looking to improve the energy efficiency of their products.

Key Features

• High Performance: The MC33262DG offers a minimal power factor correction (PFC) boost topology, which results in reduced harmonic distortion and improved power quality.
• Wide Operating Voltage Range: It operates effectively across a broad input voltage range, accommodating various global voltage standards and ensuring consistent performance.
• Low Startup Current: The device features a low startup current, which enhances its efficiency and contributes to the overall energy savings of the system.
• Integrated Protections: To ensure reliability and safety, the MC33262DG includes built-in overvoltage protection, undervoltage lockout, and a leading-edge blanking circuit.
• Precision Reference Voltage: A precision 2.5V reference voltage is included, which enhances the accuracy of the power factor correction.

Product Specifications

The MC33262DG is housed in a compact SOIC-8 package, making it suitable for space-constrained applications. It has a fixed frequency operation of 67 kHz, which is a standard frequency for PFC controllers and helps to minimize electromagnetic interference (EMI). The device is designed to operate over the industrial temperature range of -40°C to +105°C, ensuring reliable performance in various environments.

Applications

With its advanced features and robust design, the MC33262DG is ideal for a range of applications, including:

• AC-DC power supplies for consumer electronics
• Power supplies for desktop and server computers
• Power adapters for laptops and mobile devices
• Industrial power systems with high-efficiency requirements
• Lighting systems, including LED drivers and ballasts

Overall, the ON Semiconductor MC33262DG is a reliable and efficient solution for designers looking to incorporate active power factor correction in their power supply designs, ensuring compliance with global energy efficiency standards and reducing the environmental impact of electronic devices.