UCC28528DW

Overview

The UCC28528DW is an advanced PWM/PFC combination controller from Texas Instruments, designed for high-efficiency power factor correction applications. It integrates both PFC and PWM control functions into a single package to reduce component count and board space. The device operates within a temperature range of -40°C to +105°C and utilizes a 20-pin SOIC package. It supports TEM/TEM modulation techniques for optimized performance in combined power supply designs.

Feature Summary

• Integrates Power Factor Correction (PFC) and Pulse Width Modulation (PWM) controllers into a single IC
• Supports Transition-Edge Modulation (TEM) for enhanced efficiency and reduced switching losses
• Designed for high-reliability applications with extended industrial temperature ratings

Applications

• High-efficiency AC-DC power supplies
• Computer and peripheral power systems
• Telecommunications power modules

Procurement Notes

Verify the specific suffix (DW) confirms the 20-SOIC package and industrial temperature grade (-40°C to +105°C). Ensure compatibility with your PCB footprint for the SOIC-20 form factor. Confirm that the TEM/TEM modulation features align with your system's control loop requirements before finalizing procurement.

Selection Notes

Select this component when a unified solution for both PFC and downstream DC-DC conversion is required to minimize bill of materials. It is suitable for designs prioritizing high power factor and low total harmonic distortion. Consider the thermal management capabilities of the SOIC-20 package relative to your expected power dissipation levels.

Part Context

This part belongs to the UCC28528 family of advanced combination controllers. It shares functional similarities with other devices in the series but differs in packaging and temperature specifications. The DW variant specifically denotes the surface-mount SOIC package configuration.

Replacement Considerations

Direct substitutes include UCC28528DWR (Tape & Reel version of the same die) and UCC28528DWG4 (Lead-free/RoHS compliant version). Verify pinout compatibility and thermal characteristics when substituting.