ON Semiconductor NCP1655ADR2G Power Factor Controller

The NCP1655ADR2G is a sophisticated power factor controller integrated circuit (IC) designed and manufactured by ON Semiconductor. This IC is tailored for use in compact and efficient power supplies, particularly those that require power factor correction (PFC). The NCP1655ADR2G is engineered to facilitate the creation of low-cost, yet highly effective, continuous conduction mode (CCM) PFC circuits.

With its advanced features, the NCP1655ADR2G significantly improves the power factor of electronic systems by shaping the input current waveform to be in phase with the AC mains voltage, thus minimizing reactive power and harmonics. This leads to enhanced energy efficiency and compliance with international power quality standards such as EN61000-3-2, which is crucial for consumer electronics and appliances.

One of the key attributes of the NCP1655ADR2G is its ability to operate over a wide supply voltage range, making it suitable for a variety of applications across different regions with differing mains voltages. The device integrates a high-voltage startup circuit, which ensures a quick and seamless power-up sequence, thereby reducing standby power consumption.

The NCP1655ADR2G also boasts a minimal external component count. This not only simplifies the design and reduces the overall bill of materials but also allows for a more compact power supply design. The IC comes in a highly reliable SOIC-8 package, which ensures robustness and longevity in a range of operating conditions.

Additional features of the NCP1655ADR2G include overvoltage protection (OVP), undervoltage lockout (UVLO), and brown-out detection, all of which contribute to the safety and reliability of the end application. Its built-in soft-start function prevents current surges during startup, further enhancing the safety and extending the lifespan of the power supply components.

In summary, the NCP1655ADR2G from ON Semiconductor is a high-performance PFC controller IC that offers an optimal solution for designers looking to improve power efficiency and reduce energy consumption in their power supply designs, while also meeting regulatory requirements and maintaining cost-effectiveness.