The L4984DTR from STMicroelectronics is a highly integrated and robust power factor correction (PFC) controller designed to meet the stringent requirements of both industrial and consumer applications. This advanced controller is tailored to ensure efficient power conversion with improved power factor, thereby reducing energy consumption and ensuring compliance with international power regulations.

Key Features

• Transition-Mode PFC Controller: The L4984DTR operates in transition mode (TM), which is optimal for systems that require a balance between efficiency and system simplicity in applications up to a few hundred watts.
• Wide Supply Voltage Range: This controller can function over a broad supply voltage range, accommodating various applications without the need for additional components.
• Low Operating Quiescent Current: The device features a low quiescent current, which significantly reduces power consumption during idle periods, contributing to overall energy savings.
• Integrated Protections: It includes a range of safety features such as overvoltage protection (OVP), overcurrent protection (OCP), and thermal shutdown, enhancing the reliability and longevity of the end application.
• Adjustable Output Overvoltage Protection: Users can set the overvoltage protection threshold according to their specific requirements, providing flexibility and improved safety for connected loads.

Applications

The L4984DTR is suitable for a variety of applications that require efficient power factor correction. It is commonly used in:

• LED lighting systems
• Flat-screen television power supplies
• Desktop and laptop power adapters
• AC-DC power supplies for servers and telecom systems

Package and Availability

The L4984DTR PFC controller is available in a compact SO-8 package, making it a space-efficient choice for modern high-density power supply designs. STMicroelectronics ensures availability and support for this product, providing detailed technical documentation and application notes to facilitate design integration and speed up time-to-market for your power supply solutions.

With its combination of performance, efficiency, and protection features, the L4984DTR stands out as a reliable and versatile solution for power factor correction in a wide range of electronic devices.