Introducing the UCC28019ADR Power Factor Correction Controller from Texas Instruments

The UCC28019ADR by Texas Instruments is a highly efficient, 8-pin active power factor correction (PFC) controller designed for use in compact and high-performance power supplies. This advanced controller is specifically engineered to enhance the power factor of the power supply, ensuring that the energy is utilized in the most efficient way possible. The UCC28019ADR is an ideal solution for applications requiring compliance with international power factor regulations.

With its wide operating range, the UCC28019ADR is capable of handling a voltage range from 10.5V to 21V, making it versatile for various applications. It is particularly well-suited for systems that require a boost-type PFC, such as off-line power supplies within the power range of 75W to 800W, typically found in desktop PCs, televisions, and entry-level servers, as well as in higher-power applications like white goods, industrial lighting, and telecom power supplies.

The UCC28019ADR employs a continuous conduction mode (CCM) PFC control algorithm which provides a low total harmonic distortion (THD) across a wide range of load conditions. Its innovative features include a programmable soft start, which prevents inrush current during startup, and an open-loop detection mechanism that enhances system reliability. Furthermore, the controller incorporates a range of protection features such as over-voltage, under-voltage lockout, and peak current limit, ensuring safe and reliable operation under various conditions.

Designed for simplicity and ease of use, the UCC28019ADR integrates several functions that reduce the need for external components, which can help to minimize the overall bill of materials (BOM) cost. Its high level of integration and straightforward pin configuration simplifies the design process, enabling designers to achieve a power factor close to unity with minimal effort.

Available in an 8-pin SOIC package, the UCC28019ADR is not only compact but also offers excellent thermal performance, making it suitable for tight spaces where heat dissipation is a critical concern. With its advanced features and Texas Instruments' reputation for quality and reliability, the UCC28019ADR is a smart choice for engineers looking to improve the efficiency and performance of their power supply designs.