FPF2001

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The FPF2001 is an integrated power distribution switch and load driver from Fairchild Semiconductor. Designed for use in advanced mobile phones, the FPF2001 is one of the latest in a line of power management ICs (PMICs). It is designed to provide efficient power distribution and load driving capabilities, while achieving low quiescent current drain and high system efficiency. This article will provide an overview of the application field and working principle of the FPF2001.

Application Field

The FPF2001 is designed for use in advanced mobile phones, such as those featuring the Android operating system. It offers a cost-effective solution for efficient power distribution and load driving capabilities. With its integrated power MOSFET, the FPF2001 can provide both power distribution and load driving functions, reducing need for external components. It is capable of driving up to four loads, making it well-suited for keypad, vibrator, display, and audio circuits.

In addition, the FPF2001 offers low quiescent current drain, making it suitable for longer battery life in mobile devices. By providing high system efficiency, along with full protection from short circuit, over-temperature, and over-load conditions, the FPF2001 is an ideal solution for power management in advanced mobile phones.

Working Principle

The FPF2001 is an integrated power distribution switch and load driver with two input pins – VDD1 and VDD2. These pins receive signals from the power supply and based on a ratio, select one of the two inputs to route the power to the load. In addition, an adjustable threshold voltage pin – ADJTV – is provided to control the threshold voltage of the load. The integration of these pins allows the FPF2001 to provide efficient power distribution and load driving.

The FPF2001 is designed to provide full protection from short circuits, over-temperature, and over-load conditions. This is accomplished by the on-chip protection circuitry, which monitors voltage and temperature to ensure that the load is not over-driven. In addition, the on-chip protection circuitry is also able to detect short-circuit conditions and switch off the power MOSFET to prevent the load from receiving excessive current.

In addition to its on-chip protection circuitry, the FPF2001 is also equipped with a start-up logic block, allowing the IC to reset itself when the voltage on the ADJTV pin drops below the threshold voltage. This is useful in protecting the IC from unexpected power interruptions, ensuring reliable power distribution and load driving.

The FPF2001 is designed to provide efficient power distribution and load driving capabilities, while ensuring full protection from short circuit, over-temperature, and over-load conditions. Its integration of a power MOSFET, adjustable threshold voltage pin, on-chip protection circuitry, and start-up logic block enable the FPF2001 to provide cost-effective and reliable power management solutions for advanced mobile phones.

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