STMicroelectronics L6562D/CR6562 - Power Factor Correction Controller

The L6562D/CR6562 is a highly integrated Power Factor Correction (PFC) controller produced by STMicroelectronics, designed to create an advanced system solution for power supplies and converters. This controller enables the design of robust and efficient PFC stages with minimal external components, making it ideal for a wide range of applications, including adapters, flat-panel displays, and power supplies for consumer electronics.

Key Features

• Transition-Mode PFC Controller: The L6562D/CR6562 operates in transition mode, also known as boundary conduction mode (BCM), which ensures high efficiency and low electromagnetic interference (EMI) across a wide output power range.
• Low Operating Quiescent Current: This feature contributes to energy savings, particularly important in standby modes and for meeting energy-saving regulations like Energy Star or the European Code of Conduct.
• Highly Integrated: The device integrates functions such as the startup current source, error amplifier, and the oscillator, reducing the need for additional components.
• Protection Features: It includes multiple protection features such as overvoltage, overcurrent, and a disable function, enhancing the safety and reliability of the end application.
• Flexibility: The L6562D/CR6562 allows for the adjustment of the operating frequency, enabling designers to optimize their applications for performance or component size.

Applications

The versatility of the L6562D/CR6562 controller makes it suitable for a variety of applications, such as:

• Power supplies for LCD TVs and monitors
• High-efficiency AC-DC adapters for laptops and PCs
• Power supplies for lighting systems
• Energy-efficient power supplies for home appliances and consumer electronics

Technical Specifications

The L6562D/CR6562 comes in a compact SO-8 package and is characterized by its wide supply voltage range and low power consumption. Its precision reference voltage ensures accurate power factor correction, while its under-voltage lockout (UVLO) prevents the system from operating at dangerously low input voltages.

For detailed technical specifications, datasheets, and application notes, designers and engineers are encouraged to visit the official STMicroelectronics website or contact their local ST sales office.