IRDC3823

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IRDC3823 is an economical evaluation board that aims to meet the requirements of a wide range of applications for DC/DC and AC/DC (off-line) SMPS. It is specially designed to provide the necessary information for users to evaluate, characterise, and program the IR3638 synchronous rectified buck controller, as well as to help the user to obtain a correct design for the implementation of the converter. This evaluation board allows designers to accurately and quickly adjust key parameters at all stages of the development process.

The IRDC3823 comes with pre-programmed parameters such as drive level, dead-time, loop-gain, and ramp-compensation. It supports a wide input voltage range from 4.5 to 18V, and with output current capability of up to 5A. The board features an in-rush current control circuit to protect the upstream components from excessive currents during start-up, and can be operated in both continuous and discontinuous conduction mode (CCM and DCM). Furthermore, the board offers a shunting feedback circuit that greatly improves the dynamic behaviour of the converter, and allows large step-load conditions without response droop.

The IRDC3823 works on the principle of synchronous rectification, where power switches are operated in pairs. This helps maximize the efficiency of the converter by reducing the power losses due to switching of the power switches. The IRDC3823 also includes a programmable soft start circuit, which is used to limit the inrush current at start-up. The board is well suited for applications such as battery charging, LED drivers, telecom, motor control, and power backup systems.

The board is designed to work with various MCUs and DSPs, allowing designers to quickly and easily incorporate a variety of features and capabilities. The IRDC3823 also comes with a graphical user interface that can be used to control and troubleshoot various parameters such as Enable, Voltage, Current, Duty, and Frequency. Additionally, the board is compatible with the IRDC3824 isolated driver board that can be used for applications that require isolated control. The IRDC3823 also features over-temperature and MOSFET over-current protection for safe and reliable operation.

The IRDC3823 evaluation board is a versatile and easy to use solution for designers to develop and test DC/DC and AC/DC (off-line) SMPS. It offers great flexibility, allowing the user to quickly modify and adjust for different design scenarios and applications. The board is well-suited for applications such as LED drivers, battery charging, motor control, and power backup systems. It is also compatible with various MCUs and DSPs, and can be integrated with the IRDC3824 isolated driver board. With the use of the graphical user interface, designers can save time and quickly troubleshoot various parameters.

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