Datasheet

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February 2013 Doc ID 022409 Rev 3 1/4
4
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
SCRs
(a)
):
– 3 to 350 W for 230 V rms line
■ Maximum operating ambient temperature:
60 °C
■ Power efficiency @ 350 W / 230 V > 99%
■ Standby losses @ 230 V < 0.5 W (could be
reduced to 0 if potentiometer features a
mechanical switch to open the circuit at
minimum setting)
■ RoHS compliant
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
resistor, turn-on delay capacitor, etc., in order to
allow board modification, if needed.
The STEVAL-ILD003V1 eliminates flickering
thanks to its continuous current applied through
the sensitive SCR gate. This dimmer could easily
replace a standard low-cost analog Triac light
dimmer using a Diac-controlled circuit.
a. Higher power could be reached with a different filter
inductor and SCR heatsink.
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