ST ILD003V1 User Manual

STEVAL-ILD003V1

Analog wall dimmer for CFL/LED lamps based on the TS820 (EU version 220 V)

Data brief − production data

Features

■Line voltage: 198 - 264 V 50/60 Hz

■Maximum operating ambient temperature: 60 °C

■Incandescent 230 V lamp power:

–Minimum power: 20 W

–Maximum power: 350 W (without heatsinks mounted on SCRs(a))

■Dimmable lamps that can be used:

–CFL lamp (typically 14 W)

–LED lamp (typically 6 W)

■RoHS compliant

Description

The purpose of the STEVAL-ILD003V1 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 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 could easily replace a standard low-cost analog Triac light dimmer by using a Diaccontrolled circuit.

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

March 2012

Doc ID 022409 Rev 2

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This is information on a product in full production. For further information contact your local STMicroelectronics sales	www.st.com
office.

Circuit schematic	STEVAL-ILD003V1

1 Circuit schematic

Figure 1. STEVAL-ILD003V1 schematic

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