onsemi AC DC Converters, Offline Switches FSQ0765RQLDTU

The FSQ0765RQLDTU is a Green-Mode Fairchild Power Switch designed for quasi-resonant operation, offering low electromagnetic interference (EMI) and high efficiency. It features variable frequency control and alternating valley switching (AVS) to optimize performance across a wide range of load and input voltage variations. The device includes advanced burst-mode operation for reduced standby power consumption and a simple scheme for synchronous voltage detection. This power switch integrates multiple protection functions, including overload protection (OLP), over-voltage protection (OVP), abnormal over-current protection (AOCP), and internal thermal shutdown (TSD) with hysteresis. It also has an internal startup circuit and a high-voltage sense FET rated at 650V, along with a built-in soft-start feature that takes 17.5 ms. The FSQ0765RQLDTU is suitable for applications such as power supplies for LCD TVs, monitors, VCRs, set-top boxes, and DVD players. It is packaged in a TO-220F-6L format and operates within a temperature range of -25 to +85¬8C, with a maximum current limit of 3.5A and a maximum output power of 80W. This product is RoHS compliant, making it an environmentally friendly choice for engineers looking for efficient and reliable power conversion solutions.