UCC38051D

Overview

The UCC38051D is a transition-mode power factor correction (PFC) controller manufactured by Texas Instruments. It operates in an 8-SOIC package and supports switching frequencies up to 200 kHz. The device features a startup current of 75 µA and requires a supply voltage between 12 V and 18 V. Designed for commercial temperature ranges from 0°C to 70°C, it implements discontinuous conduction mode control to enhance efficiency in single-phase PFC applications.

Feature Summary

• Implements transition-mode control for high-efficiency power factor correction
• Provides integrated gate drive capabilities for external MOSFETs
• Features low startup current to minimize standby power consumption

Applications

• Single-phase power factor correction preregulators
• Offline switch-mode power supplies
• Computer and peripheral power systems

Procurement Notes

Verify the specific suffix 'D' confirms the SOIC-8 surface-mount package variant. Confirm RoHS compliance status as per the latest manufacturer documentation. Check for obsolescence notices or lifecycle changes before finalizing procurement plans.

Selection Notes

Select this component for designs requiring transition-mode PFC with moderate switching frequencies. Ensure the application environment remains within the specified commercial temperature range. Verify that the external MOSFET gate drive requirements align with the controller's output specifications.

Part Context

This part belongs to the UCC3805x family of power factor correction controllers. It shares functional similarities with the UCC28051 but differs in operating temperature and packaging options. The series is designed to meet regulatory standards for harmonic distortion in AC-DC conversion systems.

Replacement Considerations

Public confirmed substitute part numbers: UCC28051D.