Texas Instruments

UCC2818D

UCC2818D Description

The UCC2818D from Texas Instruments is a high-performance average current-mode power factor correction (PFC) controller designed for active power factor correction in AC/DC power supplies. Packaged in a 16-SOIC surface-mount format, it operates within a 12V to 17V supply range and supports switching frequencies from 6kHz to 220kHz, making it versatile for a wide range of power conversion applications. With a low startup current of 150 µA, it ensures efficient power management while complying with ROHS3 and REACH environmental standards.

UCC2818D Features

• Average Current-Mode Control: Ensures high power factor (>0.99) and low THD (total harmonic distortion) for compliance with global efficiency standards.
• Wide Frequency Range (6kHz–220kHz): Enables flexible design optimization for efficiency and component size.
• Low Startup Current (150 µA): Reduces standby power consumption, ideal for energy-sensitive applications.
• Surface-Mount (SOIC-16) Package: Compact and suitable for automated PCB assembly.
• Robust Protection: Includes features like overvoltage protection (OVP) and undervoltage lockout (UVLO) for system reliability.
• RoHS3 & REACH Compliant: Meets stringent environmental regulations.

UCC2818D Applications

The UCC2818D excels in high-efficiency power supplies, including:

• Server & Telecom Power Systems: Ensures compliance with 80 PLUS Titanium and other efficiency standards.
• Industrial AC/DC Converters: Improves power quality in motor drives and automation equipment.
• LED Lighting Drivers: Enhances power factor in high-brightness LED applications.
• Consumer Electronics: Used in adapters and chargers requiring low harmonic distortion.

Conclusion of UCC2818D

The UCC2818D stands out as a highly efficient, reliable PFC controller with advanced features like average current-mode control and ultra-low startup current. Its wide operating frequency range and compliance with global environmental standards make it a preferred choice for modern power supply designs. Whether for industrial, telecom, or consumer applications, the UCC2818D delivers superior power factor correction while minimizing energy waste.