The NCP1271D65R2G is an integrated circuit (IC) component that is designed for use in offline flyback converters. It is manufactured by ON Semiconductor and offers a range of features that make it suitable for various power supply applications.
One of the key features of the NCP1271D65R2G is its high voltage startup integrated circuit. It has a built-in startup regulator that enables the controller to wake up and start operating at high voltages, typically between 84V and 265V. This feature ensures reliable startup even under unstable input voltage conditions.
Another important feature of this IC component is its valley lockout frequency modulation technique. This technique optimizes the switching frequency to achieve higher efficiency and lower system noise. It enables frequency switching in the range of 65 kHz to 100 kHz, ensuring efficient and stable power conversion.
The NCP1271D65R2G also incorporates a built-in bursting mode, which helps reduce power consumption during light load conditions. It automatically switches between burst mode and continuous conduction mode, depending on the load requirements, resulting in improved efficiency and reduced standby power consumption.
Moreover, this IC component offers comprehensive protection features to safeguard the system from various fault conditions. It includes features like overvoltage protection (OVP), cycle-by-cycle current limit, leading-edge blanking, undervoltage lockout (UVLO), and thermal shutdown. These protection mechanisms ensure the longevity and reliability of the power supply system
