FAN4802MY Integrated Circuits (ICs)

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FAN4802MY is a Power Factor Correction (PFC) pre-regulator controller used to regulate the input voltage of the device. This product of Fairchild Semiconductor is designed to improve the power factor of the device and reduce unnecessary power consumption. It is mainly used to regulate power supplies of electronics and consumer products.

FAN4802MY features high performance under various input line conditions. It uses two loops- current loop and voltage loop- to achieve high performance regulation. It can drive MOSFETs with peak current up to 5.0A when the Vin is over 700Vac and 3.2A when the Vin is lower than 400Vac. In addition, it can also be used to control auxiliary power supplies.

In terms of operation, FAN4802MY will detect the Vin and adjust its output voltage accordingly. The voltage loop will detect and loop back the output voltage to the controller in order to keep the output voltage stable and accurate. The current loop is also used to detect the output current and make it in line with the desired voltage. The MOSFETs in the controller are driven by the output voltage from the voltage loop, and the peak current from the current loop.

In terms of application field, FAN4802MY is mainly used in power supplies of consumer electronics, such as consumer game consoles, speakers, and computer monitors. It can also be used in battery charging applications, as well as auxiliary power supplies such as motor control and LED drivers.

Fairchild Semiconductor\'s FAN4802MY is an effective and reliable pre-regulator controller that helps improve power factor and reduce unnecessary power consumption. It is mainly used in consumer electronics and battery charging applications. Its two loops- voltage loop and current loop- are used to regulate the device\'s output voltage and current. FAN4802MY is designed to drive MOSFETs with peak currents up to 5.0A when the Vin is over 700Vac, and 3.2A when the Vin is lower than 400Vac.

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