UCC28180DR

Overview

The UCC28180DR is an 8-pin active power factor correction (PFC) controller operating in continuous conduction mode (CCM). It provides high power factor, low current distortion, and excellent voltage regulation for AC-DC front-end boost pre-regulators. Designed for universal AC input systems ranging from 100 watts to several kilowatts, it supports programmable switching frequencies between 18 kHz and 250 kHz. The device features integrated 1.5A source and 2A sink peak gate drive outputs internally clamped at 15.2V typical. It operates within a temperature range of -40°C to +125°C and is housed in an SOIC-8 package.

Feature Summary

• Utilizes average current mode control to achieve low input current distortion without requiring input line sensing.
• Features enhanced dynamic response circuitry that improves reaction to fast load transients during overvoltage and undervoltage conditions.
• Includes a unique VCOMP discharge circuit activated when the voltage feedback signal exceeds the overvoltage threshold.

Applications

• Universal AC input CCM boost PFC converters
• Server and desktop computer power supplies
• Large home appliances such as air conditioners and refrigerators
• Industrial power supply DIN rails
• Flat panel displays including plasma, LCD, and LED televisions

Procurement Notes

Verify the specific suffix DR indicates the tape-and-reel packaging format distinct from the tube variant. Confirm the component meets RoHS compliance requirements for your assembly process. Ensure the SOIC-8 footprint matches your PCB design guidelines. Validate that the operating temperature range aligns with your system's thermal environment specifications before finalizing procurement.

Selection Notes

Select this controller for applications requiring flexible frequency programming up to 250 kHz to support various MOSFET and IGBT switches. Consider its reduced current sense threshold for minimizing power dissipation in high-power systems using low-value shunt resistors. Evaluate the need for external compensation networks for current and voltage loops based on specific transient response requirements.

Part Context

This component belongs to the Texas Instruments UCC28180 series of critical conduction mode PFC controllers. It is categorized under PMIC power management ICs. The device is part of a broader family designed for efficient power factor correction in general-purpose AC-DC conversion architectures.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing designs if considering alternative PFC controllers from other manufacturers or different TI series.