UCC28515DWR

Overview

The UCC28515DWR is an advanced Power Factor Correction (PFC) and Pulse Width Modulation (PWM) combination controller manufactured by Texas Instruments. It integrates average current mode control for continuous conduction mode (CCM) PFC and PWM stages within a single package. The device operates with a maximum switching frequency of 0.5 MHz and supports an operating supply voltage range up to 18 V. It features UVLO thresholds set at 10.2 V for turn-on and 9.7 V for turn-off, ensuring stable startup and shutdown behavior. The gate driver provides a peak output sink current of 3 A and a source current of -2 A. Designed for industrial applications, it functions reliably across a temperature range of -40°C to 105°C.

Feature Summary

• Integrates average current mode control for both PFC and PWM stages in a single solution
• Includes overvoltage protection (OVP) and enable functionality for system safety
• Features robust gate drive capability with high peak sink and source currents

Applications

• High-efficiency AC/DC power supplies
• Industrial power conversion systems
• Server and telecom power modules

Procurement Notes

Verify the specific suffix 'DWR' corresponds to the tape-and-reel packaging format required for automated assembly processes. Confirm that the component status aligns with project lifecycle requirements, as availability may vary based on manufacturing updates. Ensure compatibility with existing PCB footprints designated for the SOIC-20 package before finalizing procurement orders.

Selection Notes

Select this component when a combined PFC and PWM controller is needed to reduce bill of materials count and board space. It is suitable for designs requiring CCM operation with integrated fault protection mechanisms. Consider the thermal performance of the SOIC-20 package relative to the expected power dissipation in the target application environment.

Part Context

This part belongs to the UCC2851x family of advanced combination controllers designed to simplify power supply design. It replaces discrete solutions by integrating control logic, drivers, and protection circuits. The device is part of Texas Instruments' portfolio focused on improving efficiency and reducing complexity in offline power conversion architectures.

Replacement Considerations

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