The purpose of the STEVAL-ILL039V2 demonstration board is to provide an example for applications of an LED driver using the step-up controller STLDC08. The STLDC08 is designed for handheld equipment supplied by AA or AAA batteries and provides a precise constant current starting from a variable input voltage source. The LED current is set by an external sense resistor inserted between the feedback pin (FB) and GND. A regulation loop holds the voltage drop at the sense resistor at a constant level (typ. 100 mV). https://elecena.pl/product/17492131/steval-ill039v2-step-up-current-controller-for-4-leds-based-on-the-stldc08-driver 2021-04-02 https://elecena.pl/product/17492131/steval-ill039v2-step-up-current-controller-for-4-leds-based-on-the-stldc08-driver 2021-11-03 https://elecena.pl/product/17492131/steval-ill039v2-step-up-current-controller-for-4-leds-based-on-the-stldc08-driver 2022-06-12 https://elecena.pl/product/17492131/steval-ill039v2-step-up-current-controller-for-4-leds-based-on-the-stldc08-driver 2022-06-24 https://elecena.pl/product/17492131/steval-ill039v2-step-up-current-controller-for-4-leds-based-on-the-stldc08-driver 2023-09-01 https://elecena.pl/product/17492131/steval-ill039v2-step-up-current-controller-for-4-leds-based-on-the-stldc08-driver 2024-11-22 https://elecena.pl/product/17492131/steval-ill039v2-step-up-current-controller-for-4-leds-based-on-the-stldc08-driver 2025-04-18 https://elecena.pl/product/17492131/steval-ill039v2-step-up-current-controller-for-4-leds-based-on-the-stldc08-driver 2026-03-02