UCC28517DW

Overview

The UCC28517DW is an advanced Power Factor Correction (PFC) and Pulse Width Modulation (PWM) combination controller manufactured by Texas Instruments. It integrates a peak current-mode PFC controller with a PWM post-regulator in a single package, designed for high-efficiency power supplies. The device operates within a supply voltage range of 10.8 V to 15 V, with a nominal input of 12 V. It is housed in a 20-pin Small Outline Integrated Circuit (SOIC) package with a width of 12.8 mm. The component supports an operating temperature range from -40°C to +105°C and complies with RoHS standards.

Feature Summary

• Integrates peak current-mode PFC control with a dedicated PWM post-regulator for combined power factor correction and voltage regulation.
• Utilizes pulse width modulation technology for precise control of switching operations.
• Designed for high-reliability applications with extended industrial temperature capabilities.

Applications

• High-performance AC-DC power adapters
• Server and workstation power supplies
• Industrial power conversion systems

Procurement Notes

Verify the specific suffix 'DW' corresponds to the tape-and-reel or tube packaging variant required for your assembly process, as the 'DWR' suffix typically indicates reel packaging. Confirm that the 20-SOIC footprint matches your PCB layout constraints. Ensure the supplier provides documentation confirming compliance with the specified RoHS directive and lead-free status prior to finalizing procurement orders.

Selection Notes

Select this component when a single-chip solution for both power factor correction and DC-DC regulation is required to reduce board space and component count. It is suitable for designs needing peak current-mode control for fast transient response. Consider the thermal performance of the SOIC package relative to the expected power dissipation in your specific application environment.

Part Context

This part belongs to the UCC2851x family of advanced combination controllers from Texas Instruments. These devices are engineered to simplify the design of high-efficiency power supplies by combining two critical control functions into one integrated circuit. The family targets applications demanding strict power quality standards and compact form factors.

Replacement Considerations

Publicly confirmed substitute part numbers for the UCC28517DW are not available in the provided source material. Verify compatibility with alternative models such as the UCC28510 or UCC38517 only if their datasheets explicitly confirm pin-to-pin or functional equivalence for your specific design requirements.