onsemi AC DC Converters, Offline Switches NCP12400BAHAB0DR2G

The NCP12400BAHAB0DR2G is a fixed-frequency current-mode controller designed for flyback converters, operating at either 65 kHz or 100 kHz. It features a dynamic self-supply function that simplifies the design of the auxiliary supply and VCC capacitor during various operational states, including startup and standby. The device includes a high-voltage detector for brown-out detection and an X2 capacitor discharge function, enhancing safety and reliability. This controller incorporates timer-based overload protection with options for latched or autorecovery operation, adjustable compensation for maximum power independent of input voltage, and frequency foldback to improve efficiency under light load conditions. It also supports low no-load standby power consumption of less than 30 mW and includes internal thermal shutdown for added protection. The NCP12400BAHAB0DR2G is suitable for applications such as offline adapters for notebooks, LCDs, printers, and auxiliary power supplies, making it a versatile choice for engineers seeking a robust power supply solution.