FAN7311BMX

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PMIC, or power management integrated circuits, has seen a significant rise in use in recent times as a result of the increasing demand for better management of power in different systems. Power management specific devices, such as the FAN7311BMX device, allow users to precisely control and optimize the power performance of their system. This article will discuss the application field and working principle of the FAN7311BMX device.

The FAN7311BMX, manufactured by Fairchild Semiconductor, is a single stage flyback PFC (power factor correction) controller that is designed for isolated AC/DC converters. The device is ideal for applications such as pulse-width modulation (PWM) active PFC, constant current and constant voltage LED lighting, and other applications that require high efficiency and accurate AC/DC conversion. The device offers a high level of integration, with features such as a 680V MOSFET, an over-voltage and over-current protection, and a low start-up current.

The working principle of the FAN7311BMX is thanks to the efficient use of active PFC, which is a method of controlling the input voltage of an AC/DC power supply in order to attain the highest possible current to load ratio, while at the same time providing efficient power conversion. The FAN7311BMX features a patented Zero Junction Capacitance (ZJC) loop that reduces power dissipation and improves efficiency. The device also features a unique Internal PWM Slope Balance (IPSB) circuitry that minimizes the output current ripple in order to ensure accurate strict constant current and constant voltage LED lighting requirements. The device also features pulse-by-pulse modulation, cycle-by-cycle adaptive peak current limit, and continuous peak current foldback.

The FAN7311BMX has a range of operational parameters that can be precisely tuned in order to optimize the performance of the device in different applications. These parameters include the peak current limit, the ramp time, the blip time, as well as the criteria for various protection schemes such as an over-voltage lockout and over-current protection. This level of parameter flexibility allows the device to be tuned to the exact performance needs of a specific application.

The FAN7311BMX can be used in a wide range of isolated AC/DC converter applications where a high level of reliability and precision is demanded. It is the perfect device for applications that require a high level of power factor correction as well as a superior output current and voltage stability, such as LED lighting, welding machines, and industrial equipment. The device is also suitable for smart appliances and consumer electronics device, such as air conditioning and automatic drinking water dispensers.

In conclusion, the FAN7311BMX is a high performance integrated circuit that can be used to efficiently power a wide range of applications. Its high level of integration and parameter flexibility allows it to be accurately tuned for specific applications that demand a high level of performance. The FAN7311BMX is ideal for applications such as pulse-width modulation active power factor correction, constant current and constant voltage LED lighting, and various types of industrial and consumer electronic devices.

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