The L4981BD013TR from STMicroelectronics is a versatile and high-performance Power Factor Corrector (PFC) designed for a wide range of applications that require efficient power supply solutions. This integrated circuit is part of STMicroelectronics' PFC controllers, which are engineered to enhance power efficiency, reduce energy consumption, and meet the stringent international power regulations.

Key Features

• Continuous Conduction Mode (CCM): The L4981BD013TR operates in Continuous Conduction Mode, making it ideal for applications that demand low ripple current and reduced electromagnetic interference (EMI).
• High Voltage Startup: This PFC controller is equipped with a high-voltage startup circuit that allows the IC to efficiently handle the initial power surge, ensuring a reliable start-up under varying conditions.
• Wide Operating Voltage Range: It supports a broad input voltage range, accommodating various power systems and ensuring compatibility with global voltage standards.
• Overvoltage Protection: The device includes a robust overvoltage protection feature to safeguard the circuit against voltage spikes and transients, contributing to the longevity of the end application.
• Low Standby Power: Designed with energy efficiency in mind, the L4981BD013TR maintains low standby power consumption, helping to achieve greener and more cost-effective power management.
• Flexible Switching Frequency: Users can adjust the switching frequency according to their specific application needs, which allows for optimization of efficiency and size of passive components.

Applications

The L4981BD013TR is suitable for a multitude of applications, particularly where power efficiency and factor correction are critical. It is commonly used in:

• High-efficiency AC-DC power supplies
• Power adapters for notebooks and PCs
• Flat-screen TVs and monitors
• Industrial power systems
• Renewable energy systems

Conclusion

With its robust feature set and flexible design, the STMicroelectronics L4981BD013TR is an excellent choice for designers looking to improve power factor and efficiency in their power supply circuits. Its high level of integration and protection features make it a reliable and cost-effective solution for a wide array of power management applications.