AN32258A-PR

AN32258A-PR is a high performance, low voltage, dual-mode synchronous buck Power Management Integrated Circuit (PMIC) with integrated Power Factor Correction (PFC) controller. It is designed for a wide range of applications, from computers and home entertainment systems to industrial and automotive applications.The AN32258A-PR is a high-efficiency, high-output PFC controller with an adjustable synchronization frequency. It is designed to provide a high-efficiency power supply solution for low-voltage systems. It features adjustable constant-voltage, constant-current, and adjustable current-limit functions. It also supports up to 10 output channels, each capable of delivering up to 42A of output current.The AN32258A-PR has two modes of operation - synchronous and non-synchronous. In synchronous mode, the switching frequency of the output can be adjusted by the user to either 300 kHz or 600 kHz. In non-synchronous mode, the switching frequency is fixed at 600 kHz. This allows the circuit to achieve high efficiency when operating in either mode.When operating in synchronous mode, the AN32258A-PR uses pulse width modulation (PWM) and voltage-mode feedback to provide constant output voltage and current. The output voltage is regulated by an internal voltage-fed buck converter, which regulates the output common mode voltage. This provides an efficient way to regulate output voltage and current as well as provide some post-regulation for overload protection.In addition, the AN32258A-PR has a built-in overload protection function which will trigger when it detects an excessive output current, or when it has reached the set current limit. It also has an over-temperature protection circuit which will shut down the device if the temperature exceeds a predetermined safe operating limit.The AN32258A-PR is ideal for applications such as home appliances, automotive electronics, and industrial applications, where high output currents, high efficiency and wide input voltage ranges are required. Additionally, it can be used as part of a multi-phase power supply system, providing an efficient, cost-effective solution for delivering high-quality, reliable power.Overall, the AN32258A-PR Power Management Integrated Circuit is a versatile, high-performance solution for a variety of power supply applications. Its wide input voltage range, adjustable switching frequency and high-efficiency capabilities make it an ideal choice for low-cost, high-performance designs.

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