MAX6974EVKIT+

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Evaluation Boards – LED Drivers

The MAX6974EVKIT+ evaluation board is a perfect example of the kind of specialty boards developed specifically for light emitting diode (LED) driving applications. Designed to provide an end user with powerful tools, the MAX6974EVKIT+ board can be used to evaluate the stringent operation of modern LED drivers, as well as to quickly debug and assess the capabilities of an LED design.

The MAX6974EVKIT+ evaluation board is based on the feature-rich MAX6974 LED driver IC, a high-performance 4-channel buck LED driver capable of driving up to 36V of LEDs at constant current levels up to 1A. It is the high efficiency of the MAX6974 that makes it especially attractive for LED driving applications, and the MAX6974EVKIT+ board supports the same eye-catching features, providing designers with the same benefits that make the MAX6974 a preferred choice for LED driving.

Application Field

The MAX6974EVKIT+ evaluation board is best suited for driving a variety of LED-based components, including those used in automotive, industrial, commercial and consumer certified lighting applications. The board is designed to operate with a range of LED driver ICs and a host of integrated features that make it ideal for evaluating lighting designs involving multiple channels with differing parameters.

The MAX6974EVKIT+ evaluation board provides the intensive features necessary for designers to create reliable lighting designs. Its impressive features include over-voltage, over-temperature, and over-current protection; wide output adjustable current range; high-accuracy current and thermal control; adjustable slew rate control; an adjustable ramp up/down rate; and continuous cycle-by-cycle over-current monitoring. Additionally, all of these features can be accurately adjusted through the EVKIT’s LED drivers, allowing designers a broad range of options in creating optimized LED lighting drivers.

Working Principle

The MAX6974EVKIT+ evaluation board includes two factory-programmed LED drivers for driving up to four LED channels. The MAX6974EVKIT+ can be programmed with different LED drivers to suit the requirements of the application, and with each LED driver programmed to different current levels, designers can quickly and accurately test the complete range of LED current levels. With the LED drivers both preset and adjustable, LED designers have access to precision and accuracy in the LED system evaluation.

The evaluation board operates with a low voltage operating range of 7V to 36V input voltage, allowing it to facilitate LEDs at up to a 1.5A current rating. Through the board’s onboard DC/DC converter, the LEDs can be driven with a constant voltage or with a constant current, making it highly efficient for power savings. Furthermore, the use of different LED drivers can be used to drive LEDs of differing levels in the same system, allowing for the creation of very impressive lighting effects.

Adding to the overall performance of the MAX6974EVKIT+ evaluation board is the availability of a range of diagnostic and control features. Included in the board is an adjustable thermostat, adjustable slew rate control, an adjustable ramp up/down rate, and overcurrent protection. These features allow users to monitor and adjust the system’s performance to meet their specific requirements.

The MAX6974EVKIT+ is a powerful LED driver evaluation board, giving designers the necessary tools and features to evaluate LED lighting designs with the highest accuracy and precision. With the MAX6974EVKIT+, designers can develop, debug, and assess LED-based applications with the confidence that their results will be consistent and reliable.

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