UCC28051DR

Overview

The UCC28051DR is a transition mode power factor correction (PFC) controller manufactured by Texas Instruments. It operates within a wide input voltage range and supports universal AC line inputs. The device features a startup current of 75μA and a switching frequency of 200kHz. It includes undervoltage lockout thresholds of 12.5V and 9.7V. The component complies with IEC61000-3-2 standards for harmonic current limits. It is housed in an SOIC-8 package and functions as a discontinuous mode switching controller.

Feature Summary

• Transition mode PFC control architecture
• IEC61000-3-2 harmonic compliance
• Low startup current consumption
• Integrated undervoltage lockout

Applications

• Universal AC input power supplies
• Low to medium power PFC stages
• Power factor correction circuits requiring harmonic compliance

Procurement Notes

Verify the specific suffix DR indicates the SOIC-8 package variant. Confirm the manufacturer is Texas Instruments. Ensure the part number matches the transition mode PFC controller specification. Check for any additional ordering codes that may affect packaging or temperature grade.

Selection Notes

Select this component for applications requiring transition mode PFC control. It is suitable for designs needing IEC61000-3-2 compliance. Consider the 200kHz switching frequency and 75μA startup current during circuit design. Ensure the SOIC-8 package fits the board layout constraints.

Part Context

This part belongs to the UCC28051 series of power factor correction controllers. It is designed for low to medium power applications. The device integrates essential features for efficient power conversion. It serves as a key component in modern power supply designs focusing on efficiency and regulatory compliance.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.