UCC28502DWTR

Overview

The UCC28502DWTR is a Power Factor Correction (PFC) controller from Texas Instruments, designed for average current mode operation. It operates at a switching frequency of 100 kHz and supports a supply voltage range of 9.7 V to 18 V. The device features a startup current of 150 µA and functions within an operating temperature range of -40°C to 85°C. It is housed in a 16-SOIC surface-mount package.

Feature Summary

• Implements average current mode control for high-performance power factor correction
• Supports flexible topology configurations including boost, buck, and flyback converters
• Integrates internal soft-start and protection mechanisms for reliable operation

Applications

• High-power-factor pre-regulators
• Universal input AC-DC power supplies
• Industrial power conversion systems

Procurement Notes

Verify the specific suffix 'DWTR' against official Texas Instruments documentation to confirm the tape-and-reel packaging format and lead-free status. Ensure the component meets RoHS3 compliance requirements for your assembly process. Cross-reference the manufacturer part number with authorized distributors to confirm availability and authenticity before procurement.

Selection Notes

Select this component when average current mode PFC control is required for efficiency and low harmonic distortion. Consider the 100 kHz switching frequency and SOIC package constraints. Verify that the 9.7 V to 18 V supply range aligns with your system's auxiliary power design. Evaluate thermal performance within the specified -40°C to 85°C operational window.

Part Context

This device belongs to the UCC2850x family of PFC controllers. It complements other Texas Instruments power management solutions by providing dedicated functionality for improving power quality in AC-DC conversion stages. The family is designed to meet stringent regulatory standards for electromagnetic interference and power factor requirements.