STMicroelectronics L6562 - Transition-Mode PFC Controller

The L6562 is a highly integrated Power Factor Correction (PFC) controller specifically designed by STMicroelectronics for applications requiring high efficiency and power density. This advanced Transition-Mode (TM) PFC controller is a cornerstone in the development of eco-friendly solutions, as it enables electronic systems to maximize power factor and minimize power consumption, thus reducing the overall environmental impact.

Key Features

• Transition-Mode Control: The L6562 operates in Transition Mode, also known as Boundary Conduction Mode (BCM), which allows for zero-current switching at the turn-off of the boost diode, reducing switching losses and improving system efficiency.
• Proprietary Multiplier Design: This controller boasts a proprietary multiplier design for precise input voltage feedforward, ensuring accurate output power regulation and a reduced THD, which is essential for compliance with international power quality standards.
• Low Operating Quiescent Current: With a low operating quiescent current, the L6562 significantly improves the standby power consumption, making it ideal for applications that require compliance with energy-saving regulations.
• Protection Features: The device includes a comprehensive set of protection features such as overvoltage, undervoltage lockout, and brownout protection, ensuring the reliability and longevity of the application it is used in.

Applications

The L6562 is versatile in its applications, and it is commonly used in:

• Low to medium power AC-DC adapters
• Flat-panel displays and televisions
• Lighting systems with high-intensity discharge lamps
• Power supplies for desktop computers and servers

Design Support

STMicroelectronics provides extensive design support for the L6562, including application notes, reference designs, and simulation tools. This support helps designers to quickly implement the controller into their designs and to optimize the PFC stage of their power supply for the best performance and efficiency.

In summary, the L6562 from STMicroelectronics is a robust and efficient PFC controller that meets the needs of modern power supply designs, contributing to energy savings and the reduction of carbon footprints across a wide range of electronic products.