UCC28511DWR

Overview

The UCC28511DWR is an average current mode power factor controller manufactured by Texas Instruments. It operates within a supply voltage range of 9.7V to 18V and supports switching frequencies between 80kHz and 200kHz. The device is housed in a 20-SOIC package with a wide operating temperature range from -40°C to 85°C. Designed for continuous conduction mode (CCM) applications, it integrates essential protection features including overvoltage lockout and thermal shutdown.

Feature Summary

• Implements average current mode control for high-performance power factor correction
• Integrates comprehensive protection mechanisms such as overvoltage lockout and thermal shutdown
• Supports flexible switching frequency adjustment across a broad operational range

Applications

• High-efficiency AC-DC power supplies
• Computer peripheral power units
• Telecommunications equipment power systems

Procurement Notes

Verify the specific suffix 'DWR' corresponds to the tape-and-reel packaging configuration required for automated assembly processes. Confirm that the component meets RoHS compliance standards applicable to your target market regulations. Ensure the ordering quantity aligns with standard manufacturer reel sizes to avoid cut-tape handling requirements.

Selection Notes

Select this component when designing CCM PFC stages requiring precise average current control. It is suitable for applications needing integrated protection against overvoltage conditions and thermal stress. Consider the 20-SOIC footprint constraints during PCB layout planning to ensure adequate thermal dissipation and signal integrity.

Part Context

This part belongs to the UCC2851x series of power factor controllers. It shares functional similarities with other devices in the family but offers specific frequency and voltage parameters tailored for general-purpose offline power conversion. The DWR suffix indicates surface-mount availability in reel packaging.

Replacement Considerations

The UCC28512DWR is listed as a manufacturer-recommended alternative. Verify pin compatibility and electrical parameter alignment before substitution.