UCC3817DW

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The UCC3817DW is a highly efficient Precision Power Factor Correction (PFC) Integrated Circuit. Its features make it well suited for use in both AC mains single-stage and multi-stage applications. The UCC3817DW is capable of providing moderate energy efficiency while complying with power factoring requirements. Additionally, the IC provides several features which allow the user to implement a wide range of user-based power topologies.

The UCC3817DW\'s primary function is to regulate output voltage and current to achieve power factor correction. By harnessing the power of its smart algorithms, the PFC IC is able to achieve a high level of efficiency. The IC is able to detect the output impedance and control the current so that the output voltage is within a set range and the load power is in phase with the input voltage. The Power Factor Correction (PFC) integrates several user-based features and a full range of protection functions to ensure maximum safety and reliability.

The basic architecture of the UCC3817DW includes an on-board Gate Driver, a Constant Gain Speed Controller, and a Synchronous Rectifier with programmable switching frequency. The Gate Driver features an adjustable output voltage and switching frequency, which can be adjusted by the user. This allows for tailored system performance depending on the application.

The Constant Gain Speed Controller (CGSC) maintains a fixed pulse current throughout the entire operating range. The output of the CGSC is coupled with the Gate Driver to ensure high accuracy and dynamic response. This feature helps prevent potentially damaging output errors due to environmental or component variations.

The Synchronous Rectifier has a programmable switching frequency, which can be adjusted to tailor system performance and minimize switching losses. The rectification process reduces harmonic distortion and improves system efficiency. The rectifier can also incorporate additional protection mechanisms to further protect the system against potential damage.

In addition to the various features, the UCC3817DW is designed to provide protection. The IC includes an Internal Device Overvoltage protection (IDOV) which will shut down the system if the output voltage exceeds the set value. The IC also includes a safety timer which can be used to protect against long-term power problems. Other safety features include a temperature shutdown which prevents IC overheating, as well as a thermal shutdown which will shut down the system if the temperature rises above a set point.

Overall, the UCC3817DW is a highly efficient and reliable power factor correction IC. Its features make it suitable for a wide range of applications, and its protection mechanisms help ensure a high level of safety and reliability. While the power factor correction process can be complex, the UCC3817DW simplifies the process and helps maximize efficiency and reliability.

The specific data is subject to PDF, and the above content is for reference