LM3207TL-2.53EV

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The LM3207TL-2.53EV is a high-performance monolithic integrated circuit belonging to the electronic components category of Evaluation Boards, specifically DC/DC & AC/DC (Off-Line) SMPS. This device is designed to operate with a wide range of external components, in order to provide an efficient and cost-effective solution to many industrial and consumer products needing two-phase control of low voltage DC-DC converters. It operates as a single-stage DC-DC converter with an active power factor correction (PFC) circuit.

The LM3207TL-2.53EV is a fully featured PFC controller powered from either a 12V or a 24V power rail and is capable of driving an output power of up to 1.2kW. It includes two current control loops: one for the input current sensing, and one for the output stage current sensing. It has two adjustable output voltage switching frequencies: high freq. (typ. >500kHz) and low freq. (typ. <150kHz). Advanced power savings are provided via programmable frequency reduction and PhaseShiftTM operation.

The device is a highly integrated PFC solution with superior performance and features, making it suitable for a wide range of applications. It offers a complete PFC solution with an integrated gate driver, configurable for buck or boost topology and features low start-up current, low EMI, power factor correction, and high efficiency. The device also includes protection features such as over-voltage, under-voltage, over-current, under-current and temperature shutdown.

The LM3207TL-2.53EV is mainly used for low voltage applications such as small appliances, lighting, IT equipment and low power industrial systems. Its efficient design makes it suitable for many applications including battery chargers, distributed power systems, LED drivers and solar panel systems. The device offers superior performance and is capable of delivering up to 90% efficiency.

In order to control the LM3207TL-2.53EV, several external components must be connected to its pins. The external components, along with the software/firmware are responsible for the monitoring and control of various parts of the device, such as the PFC circuit, the input and output current sensing, and the switching frequency. The external components and programming also allow the device to be tailored for specific applications, optimizing both the power performance and efficiency.

The working principle of the LM3207TL-2.53EV is simple. It uses two control loops which work together to sense the input and output current flows, and regulates the converter to provide a specific voltage at the output. The feedback loop regulates the output voltage and the input current flowing through the device and ensures the desired output voltage is supplied to the load. The feedback loop also reduces the distorted input current, improving the power factor, and providing a clean and stable output.

The LM3207TL-2.53EV is an ideal solution for applications requiring a cost-effective, efficient, and reliable DC-DC converter in a wide range of operating conditions. Its integrated protection features provide system confidence and improved system reliability, while its advanced features make it suitable for a variety of applications such as LED drivers, solar panel systems, and distributed power systems.

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