Global Sources
EE Times-Asia
Stay in touch with EE Times Asia
EE Times-Asia > Controls/MCUs

ST claims universal lighting controller first in industry

Posted: 13 Feb 2013 ?? ?Print Version ?Bookmark and Share

Keywords:lighting controller? lighting system? SMED?

STMicroelectronics has revealed what it boasts as the world's first programmable digital controller specifically aimed at lighting and power-supply applications. The STLUX385 (Masterlux platform) simplifies the design of traditional power-conversion topologies, enabling faster development of innovative lighting systems. In addition, it claims to enable domestic, commercial and public lighting systems to be greener, more economical, safer and more flexible, said ST.

The device touts a combination of proven, cost-effective STM8 microprocessor core and a unique set of peripherals aimed at simplifying the design of the lighting power supply and digital control of the lights. Depending on factors such as the lighting technology used, the input power source (AC or DC), dimming requirements and safety or reliability issues, many different types of power conversion and control topologies are required in the current and emerging lighting applications and the STLUX385 is the first device able to address all of these via a single programmable chip, noted the company.

The STLUX385 achieves this goal primarily by integrating six specially-designed peripherals called state machine, event-driven (SMED) circuits that interact with each other and with external signals via a programmable switching matrix to control the power delivered to the lighting elements. In addition to the specific application signals, the SMED can process external commands to turn the lights on/off or set the dimming level, diagnostic signals such as open- or short-circuit detected, or inputs from sensors in applications where the lighting is designed to adapt to ambient conditions.


STLUX385. Simplifies the design of traditional power-conversion topologies.

The STLUX385 allows sophisticated lighting systems that currently require the use of expensive external DSPs to be produced with shorter time-to-market and lower costs. It allows light quality and its perception to be improved through dedicated algorithms and energy saving through high-efficiency conversion algorithms, while allowing new interactions between the user and the lighting system.

In addition to the six SMED peripherals, the STLUX385 also integrates a hardware digital addressable lighting interface (DALI) peripheral. Digitally controlled lighting is the key to energy saving in building and outdoor lighting installations and the DALI protocol is now in international use across the lighting industry. The STLUX385 is compatible with wired or wireless communications, simplifying the installation in large indoor and outdoor areas and reducing maintenance costs.

The STLUX385 is available in a compact TSSOP38 package at a price of $2 in quantities of 1,000 units.

Many people look forward to the New Year for a new start on old habits. - ???Anonymous

Article Comments - ST claims universal lighting control...
*? You can enter [0] more charecters.
*Verify code:


Visit Asia Webinars to learn about the latest in technology and get practical design tips.

Back to Top