The L6563A from STMicroelectronics is a state-of-the-art power factor correction (PFC) controller operating in Transition Mode (TM). It is specifically designed to build robust and compact PFC stages for a wide range of applications. The L6563A is an upgrade to the L6563, featuring the same functionality with additional improvements that enhance system performance, flexibility, and ease of use.

Key Features

• Transition Mode (TM) Operation: Ensures high efficiency and low electromagnetic interference (EMI) across a wide load range.
• Proprietary Multiplier Design: Provides low THD and precise input current shaping for excellent power factor correction.
• Embedded Non-Dissipative Overcurrent Protection: Protects the system by limiting the operation in overcurrent conditions without the need for external components.
• Two-Level OVP: The overvoltage protection (OVP) feature triggers an immediate shutdown when an overvoltage condition occurs, ensuring safety and preventing damage to the PFC stage.
• Brownout Protection: The device senses the line voltage and provides a controlled shutdown procedure during brownout conditions, preventing unstable operation.

Applications

The L6563A is suitable for a variety of applications that require high power factor and low THD. These include:

• LED lighting drivers
• Flat-panel TV and monitor power supplies
• High-efficiency AC-DC adapters
• Power supplies for servers and telecom systems
• Industrial power supplies

Benefits

With the L6563A, designers can create PFC stages that not only meet regulatory standards for power efficiency and quality but also offer enhanced protection features. The device's flexibility in handling different power levels and its robust design make it an excellent choice for a wide range of power supply designs. The L6563A's advanced features ensure a cost-effective solution with minimal external components, resulting in a reduced bill of materials and simplified design process.