FAN6982MYC - Critical Conduction Mode PFC Controller

The FAN6982MYC, by ON Semiconductor, is a sophisticated Power Factor Correction (PFC) controller designed for use in a wide range of applications requiring highly efficient power supplies. This device operates in Critical Conduction Mode (CrM), also known as Boundary Conduction Mode (BCM), which ensures zero current switching of the boost diode, leading to reduced switching losses and improved overall efficiency.

This controller is specifically engineered to meet the stringent requirements of applications such as flat-panel television power supplies, desktop power supplies, and other AC-DC converters where power factor correction is essential. The FAN6982MYC is adept at handling high power factor and low total harmonic distortion, making it an ideal choice for systems that must comply with international regulations on energy efficiency and electromagnetic interference.

Key features of the FAN6982MYC include a built-in high-voltage startup circuit, which significantly enhances the energy efficiency by reducing standby power consumption. The device also boasts over-voltage protection, under-voltage lockout protection, and over-current protection, ensuring the safety and reliability of the power supply system. Additionally, the FAN6982MYC incorporates a brownout function that protects the system during periods of low AC input voltage.

With its frequency modulation capability, the FAN6982MYC effectively reduces EMI emissions, allowing for easier compliance with EMI regulations. The device's soft-start function prevents current spikes and voltage overshoots at startup, contributing to the longevity of the end product. The FAN6982MYC also features an open-loop protection mode to secure the system against potential failures due to feedback loop disruptions.

Overall, the FAN6982MYC from ON Semiconductor stands out as an advanced PFC controller that offers a blend of high efficiency, robust protection features, and compliance with global energy standards. Its versatility and performance make it an excellent choice for designers looking to enhance the energy efficiency and reliability of their power supply systems.