UCC28050P

Overview

The UCC28050P is a transition mode power factor correction (PFC) controller manufactured by Texas Instruments. It operates within a switching frequency range of 200 kHz and supports an operating temperature range from -40°C to +85°C. The device is housed in an SOIC-8 surface-mount package with a typical quiescent supply current of 75 µA. It is designed for high-efficiency PFC applications requiring precise control.

Feature Summary

• Implements transition mode control for enhanced power factor correction efficiency
• Features low quiescent current consumption for improved standby performance
• Supports standard SOIC-8 surface-mount packaging for compact designs

Applications

• Transition mode power factor correction circuits
• High-efficiency AC-DC power supplies
• Consumer electronics power management systems

Procurement Notes

Verify the specific suffix 'P' indicates the PDIP or similar through-hole variant if required, as datasheets often list DR (SOIC-8) as primary. Confirm RoHS compliance status via the manufacturer's official documentation. Ensure the ordering part number matches the exact package type needed for your PCB layout. Check for any recent product change notices affecting pinout or electrical characteristics.

Selection Notes

Select this component when transition mode operation is preferred over continuous conduction mode for cost-sensitive or medium-power applications. Consider the 200 kHz switching frequency limit and the -40°C to +85°C temperature range against system requirements. Evaluate the 75 µA quiescent current impact on overall system efficiency during light-load conditions compared to other controllers in the UCC2805x family.

Part Context

The UCC28050P belongs to the UCC28050 series of transition mode PFC controllers from Texas Instruments. This series is engineered to provide high power factor and low total harmonic distortion. The 'P' designation typically refers to the plastic DIP package variant, distinguishing it from the SOIC-8 tape-and-reel versions like UCC28050DR.

Replacement Considerations

UCC28050PE4 is a verified equivalent part number within the same family offering identical functionality.