STEVAL-ILL038V1

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Evaluation Boards - LED Drivers

The STEVAL-ILL038V1 evaluation board is a highly-sophisticated LED driver, specifically designed for applications such as outdoor signs, traffic signs, and streetlights. It can be used as a standalone driver, or as part of a larger system. It is based on an advanced current-mode PWM (pulse width modulation) design, which enables it to drive high-power LEDs with a range of modes and control features.

Applications for the STEVAL-ILL038V1 evaluation board include everything from the highest-performance lighting solutions to more economical options. It can be used in a variety of outdoor and street lighting applications, including street lighting, parking garages and lots, and architectural lighting. It can also be used in interior lighting applications, such as in retail and commercial applications. In addition, it is suitable for applications with extra low-voltage LED drivers, such as LED moving sign and LED LCD driver.

The STEVAL-ILL038V1 evaluation board offers the flexibility to operate multiple LED strings in parallel, as well as allowing the user to program different LED strings with different brightness operating modes and dimming control. One of the main features of the board is its ability to operate a wide range of voltage levels, from 8 V to 60 V. This flexibility enables it to be used in both low-voltage and high-voltage LED lighting systems.

The board also features an additional boost configuration, which allows the LED strands to be driven with higher power. With this feature, the LED strands can be driven at up to 8 A for maximum performance. With this added flexibility, the board can be used in even the most demanding LED lighting applications.

The STEVAL-ILL038V1 also has an integrated PFC (power factor correction) circuit, which helps to reduce power losses and improve power efficiency. The board also has a wide range of protection features, such as overvoltage and short-circuit protection. Additionally, the board has thermal overload protection, as well as over-temperature protection of the main power device.

The working principle of the STEVAL-ILL038V1 evaluation board is based on its PWM current-mode design. In this design, the current level is measured and adjusted through an open-loop scheme. The current level is adjusted by changing the duty cycle of the PWM signal, which is sent to the LED driver circuit. The duty cycle of the PWM signal is inversely proportional to the current level. The PWM signal is generated using an internal clock, which is adjustable for different PWM frequencies.

In addition to its LED driver design, the STEVAL-ILL038V1 evaluation board also has digital and analog inputs, which enable it to be used in a variety of applications. The digital inputs can be used to enable and disable the LED driver, as well as to adjust the LED brightness. The analog input can be used to control the dimming mode of the LED driver, as well as to set the total power output of the LED driver.

Overall, the STEVAL-ILL038V1 evaluation board is an excellent choice for a wide range of LED driver applications. It offers flexibility, high power output, and multiple protection features, all in a compact package. With its PWM current-mode design and its programmable input and output features, the board can be tailored to specific application requirements.

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