ISL8002AEVAL1Z

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The ISL8002AEVAL1Z is an off-line SMPS evaluation board that is designed to test and evaluate the ISL8002A, an integrated circuit featured with a high-voltage buck controller designed for an input voltage range from 7 V to 42 V. This evaluation board offers a simplified and rapid route for testing to characterize the ISL8002A, asses its features, and find out its strengths and weakness in various applications.

By utilizing the ISL8002AEVAL1Z evaluation board, it is easy to understand the working principles of the device in different applications. The evaluation board implements a single-phase buck converter with synchronous MOSFET rectifier in an adjustable switching frequency range from 200 kHz to 600 kHz.

The wide input range of 7 V to 42 V makes the ISL8002A suitable for many different applications, such as power systems, solar power systems, telecom systems, and home and industrial electronic systems. It can be used as a DC/DC buck converter with output voltage adjustable from 0.7 V to 4 V, a controller with variable output current of up to 4 A when an external current sensing circuit is used, or as an AC/DC buck converter with output voltage adjustable from 0.7 V to 85 V.

The ISL8002AEVAL1Z evaluation board is a digital-controlled system allowing the user to easily modify the operating parameters to fit different applications. It provides jumpers and switches to the users allowing them to quickly change or alter the settings without having to use a programming interface. For example, the board provides the user with a spanned voltage adjustable consisting of two sets of five programmable non-volatile settings. With these settings, the user does not have to reload the voltage settings after a reboot.

The primary voltage loop of the ISL8002A can be adjusted by setting the closed loop reference voltage. The board allows input for a wide bandwidth of frequency range from 600 kHz to 2 kHz. It also features adjustable dead-time control, pulse-skipping, and max duty cycle. Moreover, the board allows the user to adjust the soft-start, under-voltage lockout level, and soft-stop level

Aside from the adjustable voltage loop, the ISL8002AEVAL1Z also provides adjustable current-sensing circuit. The board supports open loop mode, in which a current-sensing resistor can be selected. It also supports closed-loop current sensing mode, in which a current-sense amplifier can be used to sense the current level, instead of a resistor, allowing a more accurate current measurement.

The ISL8002AEVAL1Z evaluation board also allows the user to quickly and accurately monitor the system performance with its easy to use LCD display. The board features a voltage and current feedback display, which helps the user to quickly pinpoint areas where the device needs to be adjusted or re-tuned. The board also provides an output cycle-by-cycle current limit setting.

The ISL8002AEVAL1Z is a great evaluation tool for users who want to quickly design, test, and modify the ISL8002A. It allows the user to modify the switching frequency, dead time, soft start time, and many other aspects of the IC dynamically through switches and jumpers, making it an ideal platform for quick testing and evaluation of the device.

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