High-efficiency solid-state lighting driver suits both non-isolated lamp
designs and isolated ballast topologies
Power Integrations (Nasdaq:POWI),
the leader in high-efficiency, high-reliability LED driver ICs, today
announced the LYTSwitch™-3
family – the latest addition to the company’s LYTSwitch line of LED
driver ICs. Ideal for bulbs, tubes and downlights up to 20 watts,
LYTSwitch-3 ICs offer excellent dimming performance with both
leading-edge and trailing-edge TRIAC dimmers, and support both isolated
and non-isolated topologies.
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LYTSwitch-3 LED Driver ICs (Photo: Business Wire)
LYTSwitch-3
ICs feature programmable dimming profiles, enabling designers to
optimize drivers for dimming range and efficiency. Deep dimming response
is also programmable – to extend dimming range or engage the
load-shutdown mode to eliminate the possibility of shimmer. When no
dimmer is connected or the dimmer is set at full conduction angle, the
IC’s dimmer management circuitry is turned off, improving efficiency.
Uniquely, the new driver continuously manages power factor, even in
dimming mode, which minimizes apparent power draw (VA) as the bulb dims,
preventing power quality excursions in large installations. LYTSwitch-3
ICs also include a thermal-foldback feature that automatically dims the
light output to compensate for inadequate fixture cooling or high
ambient temperatures, preventing damage and increasing lamp lifetime.
Explains Hubertus Notohamiprodjo, product marketing director at Power
Integrations: “These new driver ICs can be used to provide buck, boost,
buck-boost, tapped-buck, tapped-buck-boost and isolated flyback
topologies. They are compatible with the widest range of dimmers and
provide a choice of MOSFET breakdown voltages for optimized designs.
This means that multiple single-sided, ultra-small designs can be based
around one IC, reducing design cycle time and part inventory.”
Featuring a power factor of greater than 0.9 and THD of less than 10%, LYTSwitch-3
driver ICs meet all international efficiency standards including
EN61000-3-2, CEC Title 20, CEC Title 24 and ENERGY STAR®. The ICs also
provide 3% constant-current (CC) accuracy over load, line and from
device to device. Like all Power Integrations products, the highly
integrated devices include comprehensive protection features while
requiring fewer external components than competing discrete designs,
enhancing reliability while reducing BOM costs and PCB footprint.
LYTSwitch-3
IC samples are available now. Devices are priced at $0.53 in
10,000-piece quantities. Reference design DER-512 is available for
download now from the Power Integrations website at http://www.power.com/lytswitch-3.
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 http://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.
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