STEVAL-ILL057V1 STMicroelectronics

STEVAL385LEDPSR 100 W LED street lighting application using STLUX385A Data brief Description The STEVAL385LEDPSR demonstration board is a complete and configurable solution that efficiently controls a single dimmable high brightness LED string using the STLUX385A digital controller. The LED efficiency is high during all stages of dimming and the STEVAL385LEDPSR can achieve a 92% efficiency during full load while maintaining a low < 200 mW power consumption during idle periods. The STLUX385A device handles a primary side regulated power conversion stage as well as all the supported communication links. Features The power conversion stage consists of a PFC regulator followed by a Zero Voltage Switching STLUX385A based (ZVS) LC resonant stage. The high precision High efficiency (92%) dimming is adjusted using a primary side Primary side controlled regulation (PSR) control technique. Up to 100 W (100 V at 1 A or 200 V at 0.5 A) The LED brightness can be dimmed by controlling the LED current down to a very low level. Single isolated output suitable for LED connection The STEVAL385LEDPSR demonstration board Wide input voltage range: 90 V to 265 V AC provides all the physical communication interfaces such as a DALI, insulated 0-10 and Adjustable LED current and dimming UART. All the communication is managed by the Output resolution: 11-bit equivalent STLUX385A device. The UART interface and IDLE mode power consumption: < 200 mW STLUX385A flexibility allow to quickly connect the STEVAL385LEDPSR board to alternative Real-time fault detection and protection interfaces such as the Wi-Fi, power line modems, (e. g.: short- or open circuit) Bluetooth and ZigBee . Remote control via DALI, 0 - 10 V, UART This demonstration board is available with an order code STEVAL-ILL066V1 now. May 2014 DocID025724 Rev 2 1/20 For further information contact your local STMicroelectronics sales office. www.st.com Obsolete Product(s) - Obsolete Product(s)Contents STEVAL385LEDPSR Contents 1 Board description . 3 Board connector pinout 3 2 Schematic diagrams . 5 3 Bill of material . 12 4 Revision history . 19 2/20 DocID025724 Rev 2 Obsolete Product(s) - Obsolete Product(s)