Rochester Electronics PMIC - PFC (Power Factor Correction) UCC3819AN

The UCC3819AN is a power factor correction (PFC) controller designed for active preregulators, achieving near-unity power factor by shaping the AC input line current to match the AC input voltage. It operates in average current mode control, ensuring stable and low distortion sinusoidal line current. The device features a low start-up current of 150 µA, over-voltage protection, and improved noise immunity. It supports a wide input voltage range of 10.8 V to 17 V and allows for programmable output voltage through its error amplifier. The UCC3819AN is available in multiple package options, including 16-pin DIP, and is pin-compatible with the UCC3819, offering a robust output stage with a peak gate drive current capability of ±1.2 A. This product is suitable for applications requiring efficient power factor correction and reliable operation in various line conditions.