UCC2819ADR

Overview

The UCC2819ADR is a BiCMOS power factor preregulator designed for continuous conduction mode (CCM) operation. It features average current mode control with a fixed switching frequency of 250 kHz. The device operates within an extended temperature range from -40°C to +85°C and utilizes a 16-pin SOIC package. Key electrical parameters include a maximum operating supply voltage of 17 V, UVLO thresholds at 10.2 V/9.7 V, and gate drive peak currents of ±1.2 A.

Feature Summary

• Implements average current mode control for high-performance power factor correction
• Integrates overvoltage protection and enable functionality
• Provides robust gate drive capability with ±1.2 A peak source/sink currents

Applications

• Single-phase PFC preregulators
• Power supplies requiring CCM operation
• BiCMOS power factor correction designs

Procurement Notes

Verify the specific suffix 'ADR' against the manufacturer's official documentation to confirm the tape-and-reel packaging configuration. Confirm that the component meets RoHS3 compliance requirements as specified in the latest datasheet. Ensure the selected variant aligns with the required industrial temperature range and package dimensions for your design.

Selection Notes

Select this component for applications requiring a dedicated single-phase PFC controller with integrated overvoltage protection. The fixed 250 kHz frequency simplifies filter design compared to variable frequency alternatives. Consider the 16-pin SOIC footprint for PCB layout constraints and verify compatibility with the intended gate drive requirements.

Part Context

This part belongs to the UCC2819A series of BiCMOS power factor preregulators. It serves as a specialized solution for continuous conduction mode applications, offering a balance between performance and integration. The device is distinct from other Texas Instruments PFC controllers by its specific combination of fixed frequency operation and built-in protection features.

Replacement Considerations

UCC3819ADR is a verified alternative within the same family. Verify that the replacement supports the required -40°C to +85°C operating temperature range and matches the 16-SOIC package specifications.