LM5070HE EVAL

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The LM5070HE EVAL is an evaluation board designed for DC/DC and AC/DC (Off-Line) SMPS applications. This evaluation board utilizes the LM5070HE, which is a high efficiency, monolithic, high voltage, synchronous rectified buck controller with integrated primary and secondary side MOSFETs and average-current mode control. It is designed to operate in constant-voltage (CV) or constant-current (CC) modes, and offers a wide range of protection features and input voltage range of up to 600V.

The LM5070HE EVAL is typically used in applications such as LED drivers, AC/DC adapter, servers, telecom and industrial systems, and other consumer electronics, and can operate from a wide range of input sources including AC line, DC, and Solar Panel. It offers a variety of features and specifications such as output current up to 1A, output voltage up to 45V, and input voltage range of up to 600V. In addition, the board has an integrated dynamic Brake for a fast transition between modes, and a fast start-up feature to minimize output voltage drop.

The evaluation board also has an integrated soft start feature to reduce the inrush current. A fast slew rate for the output allows for large transient applications and can improve the overall efficiency of the system. The board is also equipped with under voltage and over voltage protection to ensure reliable operation. The board is also protected against thermal overload, and short circuit conditions. The evaluation board can be used for a wide range of applications including power line conditioning, LED drivers, and solar power converters.

The working principle of the LM5070HE EVAL is to generate a stable power supply by converting highervoltage AC or DC input to a lower-voltage DC output. The LM5070HE integrated circuit uses average current mode control, which helps to reduce the difference between the input and output voltage by compensating for changes in the current required by the load. The device is designed to provide accurate output control and fast transient response, and is able to operate in environments with wide input line fluctuations.

The device uses a synchronous rectification technique for high efficiency and lower power losses while the integrated MOSFETs provide the optimal balance of area and switching losses. The circuit uses an integrated soft-start of the MOSFETs to reduce the start-up current. The integratedpulse-width-modulation (PWM) technology allows for accurate current regulation, which can be adjusted through a resistor on the board.

The board also has an integrated UVLO (Under Voltage Lock Out) and OVLO (Over Voltage Lock Out) circuitry to protect the system from operating in an unsafe condition. The integrated thermal protection also prevents the IC from overheating and damaging the system. The board also has a dynamic brake feature to reduce the time between transition from one operating mode to another, and this feature helps to improve the system\'s efficiency and response time.

The LM5070HE EVAL board is an ideal solution for DC/DC and AC/DC (Off-Line) SMPS applications. The board provides a wide range of features and protection circuits to ensure reliable and accurate operation. The board is also designed to operate in a variety of conditions while providing efficient power conversion.

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