The UCC28060 from Texas Instruments is a state-of-the-art dual-phase, transition-mode Power Factor Correction (PFC) pre-regulator. This advanced IC is designed to enhance power efficiency and reduce system costs for a wide range of applications that require a power factor correction, such as switch-mode power supplies in desktops, servers, televisions, and industrial electrical equipment.

Key Features

• Natural Interleaving™: With Texas Instruments' proprietary Natural Interleaving technology, the UCC28060 synchronizes the operation of two interleaved phases to reduce ripple currents, resulting in minimized magnetic components and filter sizes.
• Advanced Control: The device implements advanced control features such as soft start, programmable over-voltage protection, and brownout detection, ensuring a robust and reliable operation under various conditions.
• Efficiency: By optimizing the switching frequency and reducing switching losses, the UCC28060 achieves high efficiency and meets stringent energy-saving standards.
• Enhanced THD Performance: Total Harmonic Distortion (THD) is significantly improved, which benefits the overall power system by reducing stress on the electrical grid.

Applications

The UCC28060 is versatile and can be used in a multitude of applications that demand high-efficiency power solutions. It is particularly suited for:

• AC-DC power supplies for desktop and server computers
• Flat-panel television power supplies
• Power supplies for industrial and medical equipment

Technical Specifications

The device operates over a wide supply range and features a programmable switching frequency up to 500 kHz. It supports continuous conduction mode (CCM) to accommodate higher power levels and has built-in protection features such as over-current, over-voltage, and over-temperature protections, ensuring safe operation under abnormal conditions.

Design Resources

Texas Instruments provides extensive design resources, including application notes, reference designs, and an online design simulator to assist engineers in quickly integrating the UCC28060 into their designs.