UCC28516DW

Overview

The UCC28516DW is an advanced Power Factor Correction (PFC) and Pulse Width Modulation (PWM) combined controller manufactured by Texas Instruments. It integrates a current-mode PFC controller with a post-regulator PWM controller in a single package, designed for high-performance 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 utilizes pulse width modulation control techniques and features a SOIC-20 package. The component supports current-mode control architecture for both PFC and PWM stages, enabling efficient power conversion with reduced component count.

Feature Summary

• Integrates dual-stage control combining PFC and PWM functions
• Supports current-mode control architecture for enhanced stability
• Includes built-in post-regulator for precise output management

Applications

• High-efficiency AC-DC power adapters
• Server and workstation power supplies
• Telecommunications power systems

Procurement Notes

Verify the exact suffix against the manufacturer's official datasheet to confirm pinout and electrical specifications. Ensure the ordering part number matches the required package variant. Cross-reference the RoHS compliance status and humidity sensitivity level with the latest production data before procurement. Confirm that the SOIC-20 package dimensions align with your PCB footprint requirements.

Selection Notes

Select this component when a single IC solution for both power factor correction and voltage regulation is required. It is suitable for designs prioritizing board space reduction and simplified thermal management. Consider the 10.8 V to 15 V operating range for compatibility with auxiliary power rails. Evaluate the current-mode control benefits for dynamic load response requirements in your specific application topology.

Part Context

This component belongs to Texas Instruments' family of integrated power management controllers. It combines functionalities typically requiring separate chips into one SOIC-20 package. The device addresses the need for compact, high-density power designs in modern electronics. Its integration simplifies the design process by reducing external component count and interconnect complexity.

Replacement Considerations

Consult the official TI replacement guide for direct pin-to-pin alternatives. Verify functional equivalence regarding control architecture and voltage ranges. Ensure any substitute maintains the same package type and thermal characteristics.