Date: 25/05/2010

Power supply module from Microsemi for LED lighting

Microsemi has unveiled LXMG221W-0700034-D0, which it claims is the first product in a planned family of solutions designed to provide optimized power conversion and light management for solid state lighting fixtures, enabling the energy and lifetime cost savings promise of LED-based illumination.

This new Microsemi power supply module supports 5 to 16 LED. It has an input voltage range of 90 to 305V(AC) thus enabling operation in 100V(AC), 120V(AC), 220-240V(AC) and 277V(AC), 50Hz and 60Hz systems. It is said to provide 90% power conversion peak efficiency while delivering non-flickering dimming down to 10%.

Other key features of this product are:

-- High Active Power Factor (PF > 0.9) and low Total Harmonic Distortion
(THD < 20%)
-- Constant current single string output of 700mA
-- Wide 14-48V(DC) output for LED loads of up to 34watts
-- Class 2 isolated power supply
-- FCC Title 47, part 15 Class B compliant at all input voltages


The LXMG221W-0700034-D0 module can be integrated into dimming and non-dimming fixtures and meets requirements for both commercial and residential applications, including its pending CE and UL1310 certification. Its compact, IP66-rated plastic package protects the power supply from dust and temporary water exposure and offers a thru-hole for more secure mounting.

"The SSL market is a key new market for Microsemi, and we are well positioned to leverage our leadership in power conversion and light management as well as our analog mixed signal design capabilities to develop optimized products for the next-generation of smart lighting fixtures," said Irene Signorino, director of marketing, Lighting and Automotive Products with Microsemi. "Thanks to our unique and robust supply chain, we can offer our first product family of complete AC/DC modules, the LXMG221W, directly to LED lighting manufacturers. This will help shorten the customers' time to market and simplify the communication of their new LED-driven design challenges through a still CFL-centered supply chain."

"LEDs hold the key promise of a much longer expected usable lifetime and higher efficiency compared to other available light sources," Signorino added. "This translates into lower cost of ownership for the user through both energy savings and lower maintenance and replacement costs. The energy savings are even higher if the fixture can be dimmed."

The key components of the LED fixture include the AC/DC power supply and driver. For the driver to achieve long life and high-energy efficiency it has to take into consideration LEDs electrical, photometric and thermal behavior. LED lighting can offer well tuned and personalized light via light intensity and light color controls, as well as reliable integration into smart power and lighting networks starting to appear in the residential, office and commercial space.

Price: US$60

Availability: Now

For more information visit: http://www.microsemi.com.