ST ILD003V2 User Manual

STEVAL-ILD003V2

Analog wall dimmer for CFL/LED lamps based on the TS820 (USA version 110 V)

Data brief

Features

■Line voltage: 98-132 V 60 Hz

■Maximum operating ambient temperature: 60 °C

■Incandescent 120 V lamp power:

–Minimum power: 20 W

–Maximum power: 350 W (with 27 °C/W heatsinks mounted on SCRs(a) (b))

■Dimmable lamps that can be used:

–CFL lamp (typically 14 W)

–LED lamp (typically 8 W)

■RoHS compliant

Description

The purpose of the STEVAL-ILD003V2 demonstration board is to evaluate ST’s SCR dimming solution for low-consumption lamps, particularly CFL and LED lamps, eliminating flicker and to be able to directly test most of the dimmable loads currently on the market.

Through-hole technology is used for the most important components such as the LC filter, gate resistor, turn-on delay capacitor, etc., in order to allow board modification, if needed.

AC light dimmers based on SCR dimming technology eliminate flickering as a continuous current is applied through the gate. An SCR dimmer can easily replace a standard low-cost analog Triac light dimmer using a Diac-controlled circuit.

a.Higher power can be reached with a different filter inductor and a bigger SCR heatsink

b.200 W is the maximum allowed power without an SCR heatsink

March 2012

Doc ID 022481 Rev 2

1/4

For further information contact your local STMicroelectronics sales office.

www.st.com

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