STEVAL-TLL007V1

Evaluation boards are very useful items for engineers who want to test a product under a variety of different conditions, as well as to confirm the performance and reliability of the product. STEVAL-TLL007V1 is an evaluation board for one such product, an LED driver. This article will discuss the application field and working principle of the STEVAL-TLL007V1.

Application Field of the STEVAL-TLL007V1

The STEVAL-TLL007V1 is designed to drive high-power LEDs, typically in outdoor lighting applications. With the board’s integrated on-board temperature sensing, the STEVAL-TLL007V1 is capable of driving high-power LEDs up to 3.2A of continuous current in order to achieve uniform light output and illuminating quality over time. Furthermore, the STEVAL-TLL007V1 incorporates a safety timer and two digital control inputs for further monitoring of the LED output. These features make it suitable for driving high-power LEDs used in outdoor applications.

Working Principle of the STEVAL-TLL007V1

The main component used in the STEVAL-TLL007V1 is a pulsed DC-DC power supply. A power diode is placed across the output to act as an anti-saturation element and ensure the LED is not overloaded or damaged. The LED is connected to the power supply via a constant current LED driver, which is also responsible for controlling the input current. The current is further adjusted by the user via a series of resistor options. The output voltage is then monitored and adjusted by the STEVAL-TLL007V1’s onboard microcontroller.

The STEVAL-TLL007V1 can be set to a variety of different modes depending on the requirements of the application. The user-selectable modes are dimming mode, emergency mode, temperature limitations, and PWM dimming mode. In addition, the board provides protection against over-current, over-temperature and over-voltage. The board also includes two digital inputs for controlling the LED current, and two LEDs for monitoring the driver status.

In conclusion, the STEVAL-TLL007V1 is an ideal choice for driving high-power LEDs used in outdoor applications. The board’s integrated safety and monitoring features allow for safe and reliable operation over long periods of time. Furthermore, the board is user-friendly and easily adjustable, making it suitable for use in a variety of different lighting applications.