STEVAL-ISA052V2

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The STEVAL-ISA052V2 evaluation board allows users to quickly and easily evaluate the design and performance of a non-isolated synchronous rectification buck converter. This evaluation board features an STmicroelectronics IRS2980S designed for medium continuous current and a peak current of 5A. The STEVAL-ISA052V2 is categorized as Evaluation Boards - DC/DC & AC/DC (Off-Line) SMPS.

This evaluation board provides the user with all the components needed for evaluating this type of converter. It has an integrated STIRS2980S high side and low side MOSFETs integrated gate control for synchronous rectification, and a wide range of protections to guard against overcurrent, thermal shutdown, short circuit, and UVLO. This evaluation board also features an input capacitor with a low ESR, a low-loss base drive transformer, and an integrated PFC controller. It also has feedback circuitry, a voltage reference, soft-start circuitry, and bootstrap circuitry for the low side MOSFETs. It includes a power supply, thermal relief package for dissipating heat, and switching information for evaluation.

The STEVAL-ISA052V2 evaluation board works on a buck converter principle. This type of DC/DC converter is generally used for high-efficiency applications, such as powering a microprocessor or for output regulation in power supplies. The converter circuit works by providing regulated DC output from an unregulated DC input. The input is provided by an AC source, such as a battery or AC mains, while the output is a regulated DC voltage. The current flowing through the buck converter is regulated by controlling the duty cycle of the switching elements in the converter.

The STEVAL-ISA052V2 uses synchronous rectification to minimize power loss and ensure higher efficiency. Synchronous rectification is a method of controlling conduction losses by using MOSFETs in the low-side of the converter. These devices are switched on and off in synchronization with the buzzing frequency of the converter. This allows for high efficiency, since the MOSFETs are switched only when needed. The STEVAL-ISA052V2 also includes a power factor correction (PFC) controller to reduce the output ripple and improve the power factor.

The STEVAL-ISA052V2 also includes a built-in protection circuit to ensure the safe operation of the system. This includes overcurrent protection, thermal shutdown, short circuit protection, and under voltage lock-out (UVLO). The overcurrent protection circuit will protect the system from any destructive currents that may be present in the device. The thermal shutdown provides an additional layer of protection by shutting down the device if it exceeds the maximum temperature threshold. The short circuit protection prevents the converter from going into a current limiting state if a short-circuit is detected. Finally, the UVLO prevents the device from operating if the input voltage is too low.

In conclusion, the STEVAL-ISA052V2 is an evaluation board classified as Evaluation Boards - DC/DC & AC/DC (Off-Line) SMPS. This evaluation board is designed to evaluate the performance and design of a synchronous rectification buck converter. It is equipped with various protection circuits and features PFC and sync rectification for improved efficiency. The evaluation board is a great option for anyone needing to evaluate the design and performance of this type of converter.

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