Texas Instruments

UCC3819D  

Power Factor Correction ICs

UCC3819D Description

The UCC3819D is a Power Factor Correction (PFC) controller IC designed by Texas Instruments, featuring an average current mode control scheme. This IC is optimized for high-frequency power conversion applications, providing efficient and reliable performance. The UCC3819D operates within a supply voltage range of 10.8V to 17V and is capable of switching frequencies up to 250kHz, making it suitable for compact and high-efficiency power supply designs. It is packaged in a 16-pin SOIC package, which is ideal for surface mount applications, ensuring ease of integration into modern electronic circuits.

UCC3819D Features

• Operating Temperature Range: The UCC3819D is designed to operate within a temperature range of 0°C to 70°C, making it suitable for a variety of industrial and consumer applications.
• Average Current Mode Control: This mode of operation ensures stable and efficient power delivery, reducing the need for complex feedback loops and simplifying the design process.
• Low Startup Current: With a startup current of only 150 µA, the UCC3819D minimizes power consumption during the initial startup phase, enhancing overall system efficiency.
• Compliance and Standards: The UCC3819D is REACH unaffected and ROHS3 compliant, ensuring it meets the stringent environmental and safety standards required in the electronics industry.
• Moisture Sensitivity Level: The MSL rating of 2 (1 Year) indicates that the UCC3819D is suitable for use in environments with moderate humidity, providing a balance between protection and ease of handling.

UCC3819D Applications

The UCC3819D is ideal for applications requiring high efficiency and compact design. It is particularly well-suited for:

• Power Supplies: In power supplies for consumer electronics, industrial equipment, and telecommunications infrastructure, the UCC3819D offers a reliable and efficient solution for power factor correction.
• Adaptive Voltage Control: The average current mode control allows for precise voltage regulation, making it suitable for adaptive voltage control systems where dynamic load conditions are common.
• Energy-Efficient Systems: The low startup current and high switching frequency make the UCC3819D an excellent choice for energy-efficient systems, such as LED lighting and renewable energy inverters.

Conclusion of UCC3819D

The UCC3819D from Texas Instruments is a robust and efficient PFC controller IC, designed to meet the demands of modern power management applications. Its average current mode control, low startup current, and compliance with industry standards make it a reliable choice for a wide range of applications. While the product is now obsolete, its legacy continues to influence the design of power management solutions, offering valuable insights for engineers and designers in the electronics industry.

UCC3819D Documents

Download datasheets and manufacturer documentation for UCC3819D

Datasheets :

UCC2819, UCC3819      

HTML Datasheet :

UCC2819, UCC3819