STEVAL-ILL057V1, 200 W, digital 4-LED channels demonstration board with STLUX385A-controlled current regulation and dimming
参考設計 著者: STMicroelectronics
STEVAL-ILL057V1, 200 W, digital 4-LED channels demonstration board with STLUX385A-controlled current regulation and dimming. The STEVAL-ILL057V1 product evaluation board is a complete and configurable solution for managing four independent high-brightness LED channels using the STLUX385A digital controller. The STLUX385A is part of Masterlux family and embeds advanced peripherals tailored to generate high resolution PWM signals (SMED). The STEVAL-ILL057V1 implements inversed buck topology to drive each LED channel. The SMED technology integrated in the STLUX385A regulates the LED current, exploiting the fixed off-time (FOT) principle. Each channel can generate output current in the range of 250 mA to 1 A