CAT4139AGEVB

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The CAT4139AGEVB Evaluation Board is designed to demonstrate the performance of the CAT4139A IC, a high-voltage, high and low power LED driver with programmable dynamic current control. This evaluation board is intended to provide a comprehensive and flexible platform from which to explore a wide range of applications and test parameters.

Applications

The CAT4139AGEVB is primarily used in the design of LED-based lighting applications where high performance, maximum flexibility and cost-effectiveness are paramount. This board is suitable for use in a variety of environments including automotive, industrial, consumer, residential and commercial applications. Examples of suitable applications include, but are not limited to, spotlights, surface-mounted downlights, street lighting and architectural lighting.

In particular, the board is designed to illustrate the performance of the CAT4139A in dynamic, or adaptive, lighting applications. In these applications, the CAT4139A is able to provide extremely precise control over output current and therefore the brightness of the connected LEDs, which allows designers to create highly customised and energy efficient lighting installations.

Working Principle

The CAT4139AGEVB is powered by a standard 5V power supply and draws in an input voltage between 4V and 18V. This voltage is then converted to a regulated 12V operating voltage using the on-board voltage regulator. The LED driver is then used to control the LED current using the CAT4139A IC.

The feedback pin of the IC is connected to a photodiode via a voltage divider circuit in order to sense the amount of light being emitted from the LEDs. This feedback signal is then used by the CAT4139A to adjust its output current, resulting in a constant light output from the LEDs.

The board is further equipped with a selection of push-buttons, LEDs and a rotary switch to provide access to additional features such as dimming and colour balancing. The board also features an adjustable output current limit and adjustable over-temperature protection. All of these features are designed to make it easier for designers to customise their lighting installation and to ensure maximum efficiency.

Conclusion

The CAT4139AGEVB evaluation board provides designers with a comprehensive and flexible platform to explore a range of LED-based lighting applications. It takes advantage of the CAT4139A IC\'s high-voltage, high and low power LED driver with programmable dynamic current control, which makes it ideal for dynamic lighting scenarios. In addition, the board features a selection of input/output ports, LEDs and push-buttons, as well as adjustable output current limit and over-temperature protection, making it easy to customise a lighting installation.

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