STEVAL-ILD003V1 STMicroelectronics

STEVAL-ILD003V1 Analog wall dimmer for CFL/LED lamps based on the TS820 (EU version 220 V) Data brief Features Operation for 2-wire wall dimmer Leading-edge control (compatible with all lamps commonly found on the market) Operation on 230 V line rms voltage (198 to 264 V) and 50 Hz or 60 Hz line frequency Dimmable power range with halogen, CFL and LED lamps (without heatsinks mounted on (a) SCRs ): 3 to 350 W for 230 V rms line Maximum operating ambient temperature: 60 C resistor, turn-on delay capacitor, etc., in order to Power efficiency 350 W / 230 V > 99% allow board modification, if needed. Standby losses 230 V < 0.5 W (could be The STEVAL-ILD003V1 eliminates flickering reduced to 0 if potentiometer features a thanks to its continuous current applied through mechanical switch to open the circuit at the sensitive SCR gate. This dimmer could easily minimum setting) replace a standard low-cost analog Triac light RoHS compliant dimmer using a Diac-controlled circuit. Compliance with EMC standards IEC 61000-4-4: criteria A for more than 2 kV Compliant with EN55015 with 350 W / 230 V halogen lamp Description The STEVAL-ILD003V1 demonstration board is designed to propose a low-cost analog dimmer topology using a sensitive SCR TS820-600FP. The dimmer can drive typical low-consumption lamps, particularly CFL and LED dimmable lamps. Through-hole technology is used for the most important components such as LC filter, gate a. Higher power could be reached with a different filter inductor and SCR heatsink. February 2013 Doc ID 022409 Rev 3 1/4 For further information contact your local STMicroelectronics sales office. www.st.com 4Circuit schematic STEVAL-ILD003V1 1 Circuit schematic Figure 1. STEVAL-ILD003V1 schematic - V 2/4 Doc ID 022409 Rev 3