UCC2819APWR

Overview

The UCC2819APWR is a BiCMOS power factor preregulator controller from Texas Instruments, housed in a TSSOP-16 surface-mount package. It operates within a temperature range of -40°C to +85°C and features a switching frequency of 250 kHz. The device draws an operating supply current of 150 µA. It provides essential functions for active power factor correction, including overvoltage protection and low start-up current capabilities.

Feature Summary

• Implements continuous conduction mode (CCM) control for active power factor correction
• Integrates overvoltage protection mechanisms for system safety
• Utilizes BiCMOS process technology to achieve reduced power dissipation

Applications

• Active power factor corrected preregulators
• Universal input AC-DC power supplies
• Computer and peripheral power systems

Procurement Notes

Verify the specific suffix 'PWR' confirms the TSSOP-16 package and reel packaging configuration. Confirm RoHS compliance status through official documentation. Ensure design-in compatibility with existing thermal management solutions for the specified operating temperature range.

Selection Notes

Select this component for applications requiring integrated PFC control with low quiescent current. The TSSOP-16 package suits space-constrained designs. Verify that the 250 kHz switching frequency aligns with electromagnetic interference requirements and transformer design constraints.

Part Context

This part belongs to the UCC2819A series of power factor correction controllers. It is designed to replace older discrete solutions by integrating multiple control functions into a single IC. The series supports high-efficiency power conversion standards for consumer and industrial electronics.

Replacement Considerations

The UCC2819APW is a pin-compatible alternative available in a tube package. Designers should verify package dimensions and thermal characteristics when substituting between reel and tube formats.