TI Korea (CEO Kent Chon, www.ti.com/ww/kr) December 6, 2013 – TI Korea (CEO Kent Chon) has launched a power factor correction (PFC) controller that operates in continuous conduction mode and offers the industry's widest range of programmable frequencies. The 8-pin PFC controller UCC28180 reduces power consumption to half compared to conventional solutions and achieves power factor above 0.95, making it suitable for universal input AC/DC applications such as industrial, server power supplies, air conditioning, lighting, consumer appliances, and home and office electronic devices. (For information on sample orders, refer to http://www.ti.com/ucc28180-pr-kr)

The variable switching frequency of UCC28180 enables designers to optimize designs in terms of size, material cost, and efficiency. Additionally, this controller enables achievement of AC input current total harmonic distortion (THD) as low as approximately 5% while using a shunt resistor 50% smaller than previous generation solutions.

Key Features and Advantages of UCC28180

• Maximum Application Range: Operating frequency can be programmed across a wide range from 18kHz to 250kHz, and IGBT, GaN, SiC, and Si MOSFET can be used to minimize component count and improve efficiency.
• Lowest Power Consumption: The PFC controller uses low current sensing threshold, enabling the use of small shunt resistors to reduce power consumption to half compared to previous generation devices while maintaining low THD.
• High Reliability: Rich protection features such as soft over current (SOC), cycle-by-cycle peak current limiting, output loop open, overvoltage and open pin detection protect the power system and components.
• Audible Noise Minimization: When output voltage exceeds the regulation level, UCC28180 enables faster loop response, minimizing audible noise generation in magnetic components caused by sudden PWM output shutoff during overvoltage protection.

UCC28180 operates seamlessly with all TI DC/DC controllers such as UCC28950, UCC28250, and UCC25600, as well as motor control and lighting solutions, providing reliable, high-efficiency, and low-cost power design solutions for diverse applications.