FAN4802LNY

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Power Factor Correction (PFC) is a technology that is used in a variety of applications and forms the building blocks of a more efficient power system. It is used to boost a current waveform to improve the power factor of the output load by compensating for phase differences or harmonic frequencies. FAN4802LNY is the latest PFC controller from Fairchild Semiconductor its features make it suitable for various industrial and consumer applications.

The FAN4802LNY utilizes an advanced single-stage PFC topology for full-load power factor of up to 0.99 and meets all harmonic control requirements of the international standard EN61000-3-2/3/4. It can provide as much as 40W of output power and includes protections such as missing AC line, over voltage, and over current protection (OCP). It also incorporates system diagnostics and fan speed over-voltage protection (FSDOVP) to provide design safety and flexibility.

The FAN4802LNY has a wide input voltage range of 85 VAC to 265 VAC making it well suited to use in a variety of applications. It also features a high efficiency of up to 95%. The IC also features a low THD of less than 10% and is designed for use in a variety of industrial, commercial and residential applications.

The FAN4802LNY\'s operating principle is based on a quasi-resonant (QR) Buck-Boost topology. The controller provides a wide input voltage range and power factor correction for improved efficiency by reducing total harmonic distortion (THD). The controller also offers fast transient response and good load regulation over a wide input voltage range.

The FAN4802LNY also boasts a range of additional features such as a Run/Halt pin, temperature limiting, no load and overload protection, adjustable overvoltage protection, adjustable OVP ramp rate, short-circuit latch protection and surge current protection (SCP). The controller is also designed to meet EMC requirements and to operate in temperatures ranging from -40°C to +85°C.

The FAN4802LNY is capable of meeting the most stringent efficiency and power factor requirements, making it an ideal choice for a variety of applications such as UPS systems, solar inverters, standby power supplies, LED lighting, AC to DC adapters and other applications requiring PFC.

In summary, the FAN4802LNY is a highly efficient PFC controller with an advanced single-stage QR Buck-Boost topology. It is designed for a variety of applications such as LED lighting and AC-DC adapters, and enables improved system efficiency by reducing total harmonic distortion (THD). It also offers a wide input voltage range and a range of additional features such as SCP, OVP and OCP.

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