LM34910EVAL

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LM34910EVAL is an evaluation board designed to evaluate the performance and features of the LM34910IC high-speed synchronous rectified buck converter from Texas Instruments. This evaluation board has an integrated fully-featured AC/DC or DC/DC off-line SMPS solution that can deliver up to 10A of current and is capable of a wide input voltage range of 4-36V.

The LM34910EVAL is ideal for powering FPGAs, DSPs, microprocessors, and other integrated circuits in the system. It is designed in such a way that a minimal number of external components are required to complete a complete power supply solution. In addition, it provides a wide operating temperature range of -40 to 150°C, allowing for use in harsh environments.

The LM34910EVAL board comes with a wide range of features, such as a low noise switching frequency (300 KHz to 2.2 MHz), wide range Programmable frequency(50 KHz to 2.2 MHz), adjustable output voltage, output current monitor, synchronization and soft startup, high efficiency of up to 94%, short-circuit protection, over voltage protection and so on.

The working principle of this evaluation board is based on the synchronous rectified Buck DC/DC or AC/DC converter. This is achieved through the use of two synchronous buck half-bridge MOSFETs/IGBTs, which operate in parallel to form a synchronous rectifier. The primary winding is connected to the AC/DC input and the secondary winding is connected to the output. The synchronous rectifier provides high efficiency while keeping the component losses at a minimum.

The LM34910EVAL also features a soft start circuit that allows the output current to gradually increase, thus eliminating output voltage transients. Other features include the integrated thermal shutdown module, power-good signal, over-temperature protection, over-voltage protection, UVLO protection, external synchronization, and the ability to set the switching frequency via a resistor divider network.

Overall, the LM34910EVAL is an ideal evaluation board for testing and evaluating the performance of the LM34910IC high-speed synchronous rectified buck converter. It provides a wide range of features and benefits, and its extensive temperature range makes it suitable for use in harsh environments. Furthermore, its compact size makes it easy to integrate into a wide range of applications.

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