LM3447-PAR-230VEVM

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Evaluation Boards - LED Drivers

LEDs are an incredibly versatile form of lighting used in many applications, from vehicle tail lights to light displays in high-end retail stores. But to take advantage of the many benefits LEDs offer, strong driving circuitry is needed. This is where the LM3447-PAR-230VEVM evaluation board from Texas Instruments comes in.

This board is part of TI\'s family of LED driver solutions, which are specifically designed to provide efficient and reliable LED light output. It’s an incredibly cost-effective way to quickly integrate LED lighting into almost any application.

The LM3447-PAR-230VEVM evaluation board is a compact, high-performance LED driver that converts a boost input voltage into a regulated, constant current output. It has a wide input voltage range of 5–50V, making it ideal for most LED applications.

The board can operate in constant current mode, which is the most popular, as well as inductor emulated PWM mode. The constant current mode ensures that the LED is driven at a specified, constant current regardless of LED forward voltage variations. In inductor emulated PWM mode, the LED is driven with a pulse-width-modulated signal.

The board also features an integrated OVP (overvoltage protection) which detects and disables the output when it’s over-loaded or when a short-circuit condition occurs. The OVP is adjustable via a resistor and offers protection against over-temperature and open-load conditions.

The LM3447-PAR-230VEVM board is just one of the many LED driver solutions from Texas Instruments, and it is highly-suitable for automotive and industrial applications, as well as consumer applications, such as garden lighting and signs.

The board’s working principle is relatively simple. The input voltage is changed by a MOSFET to step-up the input voltage and boost it to the desired output voltage. The LM3447 then takes this higher voltage and converts it into a constant current that can be used to drive the LEDs.

The LM3447\'s wide input voltage range, simple operation, and OVP all make it the perfect solution for applications that require high-performance, cost-effective LED drivers.

In summary, the LM3447-PAR-230VEVM from Texas Instruments is a high-performance, cost-effective LED driver evaluation board. It offers an adjustable, constant current output and wide input voltage range. It is ideal for automotive and industrial applications, garden lighting, signs, and other consumer applications.

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