UC3854N Power Factor Correction (PFC) Controller IC – Texas Instruments

MPN:UC3854N

The UC3854N is a high-performance Power Factor Correction (PFC) controller IC from Texas Instruments, designed for active PFC pre-regulator circuits in AC-DC power supplies. Using average current-mode control, it achieves near-unity power factor and low harmonic distortion, helping systems comply with international power quality standards.

It integrates voltage and current error amplifiers, UVLO protection, and high-current gate drive, making it ideal for SMPS front-end stages, industrial power supplies, and telecom equipment.