Texas Instruments

UCC3818DW  

Power Factor Correction ICs

UCC3818DW Description

The UCC3818DW from Texas Instruments is a high-performance average current-mode power factor correction (PFC) controller designed for AC/DC power supplies. Packaged in a 16-pin SOIC and rated for surface-mount assembly, it operates within a 12V to 17V supply range and supports switching frequencies from 6kHz to 220kHz, making it versatile for various power topologies. With a low startup current of 150 µA, it ensures efficient power-up sequences. Compliant with ROHS3 and REACH standards, it is suitable for environmentally conscious designs.

UCC3818DW Features

• Average Current-Mode Control: Ensures high power factor (>0.99) and low THD (total harmonic distortion).
• Wide Frequency Range (6kHz–220kHz): Enables optimization for efficiency and component size.
• Low Startup Current (150 µA): Reduces standby power consumption.
• 12V–17V Supply Range: Compatible with standard auxiliary power rails.
• Surface-Mount 16-SOIC Package: Ideal for compact, high-density PCB layouts.
• RoHS3 & REACH Compliant: Meets stringent environmental regulations.
• MSL 2 (1 Year): Ensures reliability in humid environments.

UCC3818DW Applications

• AC/DC Power Supplies: Enhances power factor in server PSUs, telecom rectifiers, and industrial power systems.
• LED Drivers: Improves efficiency in high-power LED lighting applications.
• Consumer Electronics: Used in TVs, monitors, and adapters to meet regulatory standards (e.g., IEC 61000-3-2).
• Renewable Energy Systems: Optimizes power conversion in solar inverters and energy storage systems.

Conclusion of UCC3818DW

The UCC3818DW stands out for its precision average current control, wide frequency flexibility, and low standby power, making it a robust choice for high-efficiency PFC stages. Its compact SOIC package and compliance with environmental standards further solidify its position in modern power designs. While designated as Last Time Buy, it remains a reliable solution for legacy or long-lifecycle applications requiring high power quality and regulatory compliance.

UCC3818DW Documents

Download datasheets and manufacturer documentation for UCC3818DW

Datasheets :

UCC2817/18, UCC3817/18      

PCN Obsolescence/ EOL :

EOL 21/Sept/2023