The L6590A from STMicroelectronics is a robust and highly-efficient power factor correction (PFC) controller designed to enhance the power factor of AC-DC power supplies. Operating in transition mode, the L6590A is an optimal solution for systems that require compliance with international power factor regulations for a greener and more energy-efficient performance.

Key Features

• Transition Mode (TM) Operation: Ensures high efficiency in power conversion, making it suitable for applications with varying load conditions.
• Low Total Harmonic Distortion: Contributes to a clean power supply by significantly reducing the harmonic distortion in the electrical system.
• Integrated Start-Up Circuit: This feature minimizes external component count, leading to a more compact design and cost savings.
• Brownout Protection: Protects the system against drops in input voltage, ensuring reliable operation under adverse conditions.
• Overvoltage, Overcurrent, and Overpower Protections: Comprehensive safety features safeguard the controller and the power supply from a wide range of faults and abnormal operating conditions.

Applications

The L6590A is versatile and can be employed in a variety of applications that require efficient power factor correction. It is particularly well-suited for:

• Switch Mode Power Supplies (SMPS)
• Adapters for Notebooks
• Flat Panel Displays and TVs
• LED Lighting Systems

Technical Specifications

The device operates over a wide supply voltage range and is available in a compact package. Some of the technical specifications include:

• Supply Voltage Range: 11.5 V to 18 V
• Operating Frequency: 65 kHz
• Package: DIP-8, SO-8

The L6590A is a testament to STMicroelectronics' commitment to providing energy-efficient and cost-effective solutions for power management challenges. With its advanced features and protections, this PFC controller is engineered to meet the stringent demands of modern power supply designs.