ON Semiconductor NCP1217AD133R2G Description

The ON Semiconductor NCP1217AD133R2G is a versatile and efficient PWM current-mode controller designed for high-performance, off-line power supplies. This integrated circuit (IC) is a part of ON Semiconductor's extensive range of power management devices, which are known for their reliability and innovation.

With its adjustable 133 kHz switching frequency, the NCP1217AD133R2G provides a flexible platform for designers to optimize their power supply for efficiency and size. The IC incorporates a range of features that enhance the performance of AC-DC converters and ensure the stability and safety of the end application. These features include an adjustable skip-cycle capability, a Dynamic Self-Supply (DSS) which eliminates the need for an auxiliary winding, and a high-voltage startup current source for quick power-up.

One of the key benefits of the NCP1217AD133R2G is its built-in frequency jittering, which significantly reduces Electromagnetic Interference (EMI), making it easier for power supplies to meet regulatory standards. Additionally, it offers over-temperature protection, over-current protection, and a brown-out detection feature, which safeguards the system against abnormal line input conditions.

The NCP1217AD133R2G is housed in a compact PDIP-7 package, making it suitable for space-constrained applications. Its robust design is intended for a wide range of applications, including consumer electronics, such as LCD monitors, set-top boxes, and power adapters, as well as industrial and telecommunications equipment.

Overall, the NCP1217AD133R2G is a highly integrated and energy-efficient solution for power supply design. Its advanced protection features, along with its ability to support a wide variety of output configurations, make it an excellent choice for manufacturers looking to enhance the performance and reliability of their products while complying with energy-saving standards.