onsemi PMIC - PMIC - PFC (Power Factor Correction) - FAN4800AMY FAN4800AMY

The FAN4800AMY is a Power Factor Correction (PFC) integrated circuit designed for use in power supplies that require both boost PFC and Pulse Width Modulation (PWM) functionalities. It operates within a temperature range of -40¬8C to +105¬8C and is available in a 16-pin Small Outline Package (SOP). This device is pin-to-pin compatible with other models in the series, such as the ML4800 and FAN4800, facilitating easy integration into existing designs. Key features include the ability to operate in either current-mode or feed-forward voltage-mode, which enhances input current shaping. The FAN4800AMY incorporates protections against over-voltage, under-voltage, and open-loop conditions, as well as cycle-by-cycle current limiting for PWM. It also supports brownout protection and features a soft-start function to manage power-on sequences effectively. The device is suitable for various applications, including desktop PC power supplies, internet server power supplies, LCD TV and monitor power supplies, uninterruptible power supplies (UPS), battery chargers, and telecom systems. Its innovative design minimizes the need for external components while improving efficiency, particularly at light loads.