Rochester Electronics PMIC - PFC (Power Factor Correction) UCC3817PW

The UCC3817PW 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 average current mode control, which helps maintain stable and low distortion sinusoidal line current. The device operates with a typical start-up current of 150 OºA and supports a wide input voltage range of up to 18 V. Key features include over-voltage protection, accurate power limiting, improved noise immunity, and enhanced feed-forward line regulation. The UCC3817PW is suitable for various applications, including PC power supplies, consumer electronics, lighting, and industrial power supplies, particularly for systems compliant with IEC6100-3-2 for supplies under 300 W. The frequency range for operation is from 6 kHz to 220 kHz, making it versatile for different design requirements.