Bleeder-less, highly efficient, robust IC family serves bulbs, tubes and
fixtures up to 22 W
SAN JOSE, Calif.--(BUSINESS WIRE)--
Power Integrations (Nasdaq:POWI),
the leader in high-efficiency, high-reliability LED driver ICs, today
announced its LYTSwitch™-7
single-stage, non-isolated, TRIAC-dimmable, buck topology LED driver IC
family. Capable of delivering up to 22 watts without a heatsink in a
very small SO-8 footprint, these high-efficiency devices are suitable
for bulbs, tubes and fixtures. LYTSwitch-7 designs do not require
bleeders; employing simple, passive damping for TRIAC management and an
off-the-shelf, single-winding inductor, reducing component count to just
20, as compared to approximately 35 parts for typical dimmable LED
driver boards.
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TRIAC-Dimmable LYTSwitch-7 LED Driver ICs from Power Integrations Cut BOM Count by 40% (Photo: Business Wire)
LYTSwitch-7
ICs deliver a phase-cut (TRIAC) dimming solution with a wide dimming
range and monotonic dimming response. The LED drivers enable efficiency
of greater than 86% - around 2% higher than conventional dimmable
products – with high PF, accurate regulation and comprehensive
protection. They suit low- or high-line input as well as wide-range
universal-input designs for U.S. commercial lighting applications, which
operate from 90 VAC to 305 VAC with TRIAC dimming enabled in low-line
installations.
Comments Hubertus Notohamiprodjo, director of product marketing at Power
Integrations: “Our new LYTSwitch-7
LED driver ICs provide a highly robust solution while requiring a BOM
count that is approximately 40% less than conventional circuits. The
internal 725 V MOSFET delivers better withstand performance during line
surges, while the bleeder-less design has high TRIAC compatibility but
does not produce wasted heat, resulting in a more efficient and reliable
driver.”
Like all Power Integrations LED drivers, LYTSwitch-7
ICs have a host of protection features including thermal foldback with
end-stop shutdown, which protects the IC, driver and fixture at
abnormally-high ambient temperatures by automatically reducing the
current flow and dimming the lamp. Developers find that thermal foldback
is the key to reducing costs associated with over-design of both
electrical and mechanical components to meet reliability goals since the
IC automatically limits unusual temperature excursions without
extinguishing the lamp. Devices are also protected from open- and
short-circuit conditions, input and output OV, overcurrent and SOA. LYTSwitch-7
ICs meet international standards including: DOE Level 6 (external power
supply), CEC Titles 20 and 24, ENERGY STAR® Lamps Program
Requirements Version 2.0, NEMA SSL-7A and EN61000-3-2 (C&D).
Key applications include low-cost A19 lamps, small-form-factor lamps
such as candle-style and GU10 bulbs, commercial & industrial
applications, ceiling lamps and downlight fixtures. LYTSwitch-7
IC samples are available now. Devices are priced at $0.33 in
10,000-piece quantities. Two reference designs (DER-539 and DER-540) are
available for download now from the Power Integrations website at https://www.power.com/lytswitch-7.
About Power Integrations
Power
Integrations, Inc. is a leading innovator in semiconductor
technologies for high-voltage power conversion. The company’s products
are key building blocks in the clean-power ecosystem, enabling the
generation of renewable energy as well as the efficient transmission and
consumption of power in applications ranging from milliwatts to
megawatts. For more information please visit www.power.com.
Power Integrations, LYTSwitch and the Power Integrations logo are
trademarks or registered trademarks of Power Integrations, Inc. All
other trademarks are the property of their respective owner.
View source version on businesswire.com: http://www.businesswire.com/news/home/20160719006602/en/
Source: Power Integrations, Inc.