FAN4803CS2

Series:	--
Packaging:	Tube
Part Status:	Obsolete
Mode:	Average Current
Frequency - Switching:	67kHz
Current - Startup:	200µA
Voltage - Supply:	10 V ~ 15 V
Operating Temperature:	0°C ~ 70°C
Mounting Type:	Surface Mount
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Supplier Device Package:	8-SOIC
Base Part Number:	FAN4803

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Introduction
Power Factor Correction (PFC) is an important technology used in power electronics to maintain the power rail. It ensures that the power supplied to electronic components is properly regulated to maintain a steady output and minimize the impact of voltage fluctuations in the power rail. The FAN4803CS2 is a PFC IC that provides efficient, reliable, and proper regulation of power electronics. This article will provide an overview of the FAN4803CS2 – its applications, features, and working principle.

Applications of FAN4803CS2
The FAN4803CS2 is a PFC IC that is designed to provide proper voltage regulation and protection to multiple power rails when used with a suitable DC-DC converter. It can be used in a range of applications, including LED lighting, industrial power supplies, and automotive applications. The IC is also suitable for use in grid-tied systems, and can help maintain the steady power supply to energy storage systems and other power electronics systems. Additionally, its high integration and scalability makes it a suitable choice for space-constrained and complex applications such as solar inverters, as well as low-cost applications such as home appliances and consumer electronic devices.

Features of FAN4803CS2
The FAN4803CS2 has a wide input range, from 4.5V to 32V, and is capable of providing an output current of up to 10A. It also has a wide range of operating temperatures, from -40℃ to 105℃, meaning that it can be used in a variety of environments. It features an integrated MOSFET and low-side MOSFET, as well as an adaptive dead-time control circuit and internal temperature compensation. Additionally, it is compatible with various control techniques such as hysteretic control, constant on-time control, and voltage-mode control. The IC also provides protection against over-voltage, over-temperature, over-current, and short-circuit. These features make the FAN4803CS2 a suitable choice for a range of power electronics applications.

Working Principle of FAN4803CS2
The FAN4803CS2 is a PFC IC that provides efficient, reliable, and proper regulation of power electronics. The IC uses an adaptive dead-time control circuit to regulate the voltage and current of the power rails. This is done by sensing the load current of the power rail and adjusting the output voltage accordingly. This is done using an internal sense resistor, which measures the current of the output power rail. The IC then adjusts the output voltage based on the load current, ensuring that the power rail remains stable. Additionally, the IC also employs an internal temperature compensation circuit, which adjusts the voltage and current of the power rail in order to protect it from overheating.

Conclusion
The FAN4803CS2 is an efficient, reliable, and cost-effective PFC IC designed for power regulation in a range of applications. It features an integrated MOSFET and low side MOSFET, along with an adaptive dead-time control circuit and internal temperature compensation. Additionally, it is compatible with various control techniques, and provides protection against over-voltage, over-temperature, over-current, and short-circuits. The FAN4803CS2 is thus suitable for a range of industrial, automotive, and consumer applications.

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