UCC28019D

Overview

The UCC28019D is a Texas Instruments continuous conduction mode (CCM) power factor correction controller in an 8-pin SOIC package. It operates with a fixed switching frequency of 650 kHz and supports input voltages between 10 V and 21 V, with a nominal supply of 15 V. The device functions within a temperature range of -40°C to +125°C and draws 100 µA of operating supply current.

Feature Summary

• Implements double closed-loop feedback control for stable DC output voltage under varying AC input and load conditions
• Generates PWM waveforms using a boost chopper topology to eliminate higher harmonics and improve electrical loading power factor
• Integrates 2.5 A over-current protection capabilities

Applications

• High-performance power factor correction systems
• AC-DC power supplies requiring high stability across wide input ranges
• Industrial power grid interface designs

Procurement Notes

Verify the specific suffix 'D' corresponds to the SOIC-8 surface mount package variant. Confirm the 650 kHz switching frequency specification matches your design requirements. Ensure the component meets RoHS compliance standards as indicated in official documentation before procurement.

Selection Notes

Select this controller when a fixed 650 kHz CCM PFC solution is required. It is suitable for applications needing integrated over-current protection and dual-loop feedback. Consider the SOIC-8 package constraints and the specified operating temperature range for thermal management.

Part Context

This component belongs to the UCC28019 series of power management ICs designed for efficient power conversion. It serves as a specialized controller for improving power quality by correcting the phase difference between voltage and current in AC systems.

FAQ

What is the maximum over-current protection threshold?

The device integrates a 2.5 A over-current protection feature.

Does the UCC28019D support variable switching frequencies?

No, it operates at a fixed switching frequency of 650 kHz.