ON Semiconductor NCP1650DR2 Integrated Power Factor Correction Controller

The NCP1650DR2 is a cutting-edge power factor correction (PFC) controller chip developed by ON Semiconductor, designed to deliver efficient power conversion and regulation for a wide range of applications. It is particularly suited for use in systems that require compliance with regulatory standards for power factor and harmonic distortion, such as in switch-mode power supplies (SMPS), lighting ballasts, and power adapters.

The NCP1650DR2 integrates a Continuous Conduction Mode (CCM) PFC controller that provides a high power factor and operates in a quasi-resonant mode at high load conditions, ensuring reduced switching losses and improved efficiency. Its versatility allows it to be used in both bridgeless and traditional diode bridge power topologies, making it a flexible solution for various design requirements.

This controller chip features a range of built-in protections, including over-voltage, under-voltage, over-current, and over-temperature protection, ensuring the safety and reliability of the end application. The NCP1650DR2 also offers brown-out protection, which prevents the system from operating at dangerously low supply voltages, and a disable function that allows for low standby power when the system is not in active use.

The NCP1650DR2's internal startup timer and soft-start capabilities ensure a controlled and smooth start-up sequence, reducing stress on the system and extending the life of the end product. Additionally, the device features a leading-edge blanking function, which further enhances its performance by eliminating noise and potential false triggering of the current sense circuitry.

Supplied in a compact SOIC-8 package, the NCP1650DR2 is designed to occupy minimal space on a printed circuit board (PCB), making it an ideal choice for space-constrained applications. Its advanced features and robust design provide engineers with a powerful tool for creating efficient, reliable, and compliant power systems.

Overall, the NCP1650DR2 from ON Semiconductor represents a sophisticated solution for power factor correction, offering a blend of performance, protection, and flexibility that can meet the demands of modern electronic systems.