UCC28019DR

Overview

The UCC28019DR is an 8-pin continuous conduction mode (CCM) power factor correction controller manufactured by Texas Instruments. It operates within a switching frequency of 65 kHz and supports a supply voltage range from 10 V to 21 V, with a nominal input of 15 V. The device functions reliably across a temperature range of -40°C to +125°C. It utilizes pulse width modulation for control and features a low operating supply current of 100 µA. Packaged in a SOIC-8 surface-mount format, it serves as a core component for AC-DC converters requiring high power factor compliance.

Feature Summary

• Implements continuous conduction mode (CCM) control for efficient power factor correction
• Integrates fixed-frequency operation at 65 kHz to optimize electromagnetic interference
• Includes built-in protection mechanisms such as under-voltage lockout and over-current protection

Applications

• Universal AC input systems ranging from 100 watts to several kilowatts
• Server and desktop computer power supplies
• Large household appliances including air conditioners and refrigerators
• Industrial power supplies adhering to DIN power rail standards

Procurement Notes

Verify the specific suffix 'DR' corresponds to the tape-and-reel packaging configuration when ordering. Confirm that the SOIC-8 package dimensions align with the target PCB footprint. Ensure the selected variant meets the required industrial temperature specifications for the intended deployment environment. Cross-reference the manufacturer part number against official distributor catalogs to validate authenticity and traceability.

Selection Notes

Select this component for designs requiring fixed-frequency CCM PFC control without the need for variable frequency programming. It is suitable for applications where a 65 kHz switching rate provides an optimal balance between efficiency and size. Consider the SOIC-8 package constraints for thermal management and board space. Evaluate compatibility with external boost inductors and MOSFETs based on the integrated gate drive capabilities.

Part Context

This device belongs to the UCC28019 family of power factor correction controllers designed by Texas Instruments. It is categorized under PMIC - Power Management ICs and specifically targets PFC applications. The DR suffix indicates a specific reel-based packaging option distinct from tube or cut-tape variants. It shares functional similarities with other CCM controllers but offers fixed-frequency operation tailored for cost-sensitive and standard performance requirements.

Replacement Considerations

The UCC28019D is listed as a similar alternative component available from distributors. Verify pinout compatibility and electrical parameter equivalence before substitution. Note that package variations may exist between different suffixes within the same family.