UCC28019P

Overview

The UCC28019P is an 8-pin Continuous Conduction Mode (CCM) Power Factor Correction (PFC) controller manufactured by Texas Instruments. It operates within a temperature range of -40°C to +125°C and utilizes a PDIP-8 through-hole package. The device features a fixed switching frequency of 68.3 kHz and draws a typical operating supply current of 2.2 mA. Designed for high-efficiency AC-to-DC conversion, it supports average current mode control to achieve power factors exceeding 0.99 while minimizing harmonic distortion in compliance with international standards.

Feature Summary

• Implements average current mode control for precise input current waveform shaping
• Operates in continuous conduction mode suitable for medium to high power applications
• Integrates voltage feedforward technology to suppress input voltage ripple effects
• Includes programmable soft-start and output overvoltage protection mechanisms

Applications

• Server power supplies
• Communication equipment power systems
• Industrial power adapters
• High-power LED lighting drivers

Procurement Notes

Verify the specific suffix P indicates a PDIP-8 through-hole package configuration distinct from surface-mount variants. Confirm operational temperature ratings align with environmental requirements. Ensure compatibility with existing boost topology designs. Validate component authenticity through authorized distribution channels to guarantee performance reliability.

Selection Notes

Select this controller for designs requiring robust CCM PFC performance with through-hole mounting constraints. Consider the fixed 68.3 kHz frequency for EMI filter sizing. Evaluate thermal management needs given the wide operating temperature range. Compare against surface-mount alternatives if board space optimization is critical.

Part Context

Part of the UCC28019 family, this component serves as a dedicated active PFC controller. It simplifies design by reducing external component count compared to traditional solutions. The device integrates essential protection features and control loops necessary for efficient power factor correction in standalone or pre-regulator stages.

Replacement Considerations

UCC28019DR: Surface-mount SOIC-8 variant with similar electrical characteristics but different package type.