Rochester Electronics PMIC - PFC (Power Factor Correction) UCC3818PWTR

The UCC3818PWTR is a BiCMOS Power Factor Correction (PFC) controller designed to achieve near-unity power factor by shaping the AC input line current to match the AC input line voltage. It features over-voltage protection, accurate power limiting, and operates with a typical start-up current of 150 OºA. The device supports a wide operating voltage range of up to 18 V and a frequency range from 6 kHz to 220 kHz, making it suitable for various applications including PC power supplies, consumer electronics, lighting, and industrial power supplies. The UCC3818PWTR is compliant with IEC6100-3-2 standards for supplies under 300 W, ensuring it meets regulatory requirements for line distortion. Its advanced features include improved noise immunity, leading-edge modulation to reduce ripple current, and an average current mode control for stable operation.