AO4952

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AO4952 is a product of Fairchild Semiconductor, and it is a highly integrated linear power switch array. The array consists of two separate devices, each composed of eight N-Channel MOSFETs (Metal Oxide Semiconductor Field Effect Transistor).

Applications

AO4952 is typically used in applications such as power supplies, DC/DC converters, and DC/AC inverters. It can also be used for motor control and for a variety of other power supply and control applications. The device is also suitable for synchronous rectification in power factor correction (PFC) and resonant converter applications.

Due to its high integration, it simplifies the system design and reduces board space. The device is suitable for use in a wide range of AC input voltages and can operate at frequencies up to 600kHz. The device also provides protection features such as over-current protection, over-temperature protection, under-voltage lockout, and over-voltage protection.

Working Principle

The AO4952 is designed to provide efficient power conversion with minimal components. When operating, the device controls the on-resistance of the MOSFETs in the array in order to regulate the current passing through them. The device is capable of operating in both switching and linear modes, allowing for efficient power conversion and dynamic output voltage regulation.

The device works by controlling an internal voltage (Vcon) which is generated by a control circuit. This voltage is then used to control the on-resistance of the MOSFETs in the array, allowing the current in the system to be precisely regulated. The internal control circuit also monitors the various parameters of the system such as temperature, current, and voltage, and can be programmed to shut down the system in case of an over-temperature or over-voltage event.

AO4952 is designed to provide efficient power conversion in applications where efficiency and cost savings are important considerations. The device is also designed to be easy to use and integrate into existing designs, allowing for a more streamlined development process. With its very high integration and wide range of features, AO4952 is a great choice for a wide range of applications.

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