LM3485EVAL

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The LM3485EVAL evaluation board is a complete, compact, low-cost, and easy-to-use platform for power supply applications. The board features a switch-mode power supply (SMPS) that offers high-efficiency low-noise power and supports a wide range of input and output voltages. The board is ideal for developing and evaluating a wide range of applications, from low-cost general-purpose switching regulators to high-end industrial applications.

The LM3485EVAL application field and working principle can be divided into two categories: DC/DC converters and AC/DC (off-line) SMPS. DC/DC converters are commonly used to convert a DC voltage from one level to another. Typically, they are used to step up or step down the input voltage to the required output level. Commonly used applications of DC/DC converters include LED lighting, battery charging, and powering computing and consumer electronics devices. AC/DC (off-line) SMPS are used to convert an alternating current (AC) input into a regulated DC output voltage. The most common applications for AC/DC (off-line) SMPS include powering low to medium power consumer goods such as televisions, laptops, and game consoles.

The LM3485EVAL evaluation board uses a buck converter topology in DC/DC conversion applications, and isolated flyback topology for AC/DC (off-line) SMPS applications. The buck converter configuration allows efficient step-down of input voltage for low output applications. It is a synchronous type of converter which switches on and off with a frequency controlled by an external oscillator. The output voltage is adjustable via a voltage divider connected to the output and reference pins of the device. The LM3485EVAL also features integrated thermal protection, under-voltage lockout, and over-voltage protection. The thermal protection is enabled when the temperature of the device goes beyond the set temperature threshold. The under-voltage lockout keeps the system from running when the input voltage drops below the minimum value and over-voltage protection ensures that the system does not exceed the maximum value of the voltage that can be supplied to the system. The features present on the LM3485EVAL have been designed to give designers a wide range of options for their applications.

The LM3485EVAL also features an integrated low-side MOSFET to control the input and output current. The MOSFET can be configured to either regulate an ac or dc input. Finally, the LM3485EVAL evaluation board has a wide range of features, including a buck and boost converter topology, adjustable output voltage, and an integrated low-side MOSFET, which can be used in various SMPS applications. These features allow the designer to customize the power supply to meet their specific application needs while providing efficient, low-noise power.

The LM3485EVAL application field and working principle provides designers with a platform for developing and evaluating power supplies with an emphasis on high efficiency and low noise. The LM3485EVAL evaluation board features a switch-mode power supply design which offers adjustable input and output voltages, efficient step-down and step-up capabilities, as well as an integrated low-side MOSFET to control the input and output current. Additionally, the board has several protective features such as thermal protection, under-voltage lockout, and over- voltage protection. All of these features allow for efficient and low-noise operation as well as providing designers with the flexibility to custom design their power supply for their specific application requirements.

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