International Rectifier, IR® (NYSE:IRF), a world leader in
power management technology, today introduced the IRS2983 control IC for
single stage Flyback and Buck-Boost topologies used in LED drivers and
power supplies.
The IRS2983 employs primary side regulation that reduces component count
and simplifies design by eliminating the opto-isolator and other
components necessary for isolated feedback for fixed loads. The device
also features a rapid startup circuit that drastically reduces the turn
on time of the system.
The new device also offers high power factor and low THD and operates
over a wide input range for many LED lighting applications.
Comprehensive protection features including hiccup mode over-voltage
protection, cycle-by-cycle over-current protection and open and short
circuit protection are also included. The device also supports TRIAC
dimming.
“Traditional incandescent, halogen, and CFL light sources are
rapidly being replaced by LED bulbs, tubes and fixtures. The Flyback
converter is the preferred power supply topology for a large segment of
the LED driver market. Flyback LED drivers are simple, cost effective
and efficient. IR’s IRS2983 helps simplify the design process and reduce
part count and can also be configured to work with TRIAC dimmers,” said
Peter Green, LED Group Manager in IR’s Energy Saving Products Business
Unit.
Other key features of the IRS2983 include critical-conduction mode
operation, with discontinuous and burst modes at light load as well as
flexibility allowing easy connection opto-isolated feedback circuitry
for more complex designs.
Available in an SO-8 package, the IRS2983 utilizes IR’s advanced
high-voltage IC process to deliver superior protection from electrical
over-stress also offering micro-power startup, low quiescent current,
latch immunity and ESD protection and noise immunity.
More information is available on the International Rectifier website at http://www.irf.com/whats-new/nr140130.html
Availability and Pricing
Pricing for the IRS2983 begins at US $0.45 each in quantities of
10,000-units. Production quantities are available immediately. The
devices are lead free and RoHS compliant. Prices are subject to change.
About International Rectifier
International Rectifier (NYSE:IRF) is a world leader in power management
technology. IR’s analog- and mixed-signal ICs, advanced circuit devices,
integrated power systems, and components enable high-performance
computing and reduce energy waste from motors, the world’s single
largest consumer of electricity. Leading manufacturers of computers,
energy-efficient appliances, lighting, automobiles, satellites,
aircraft, and defense systems rely on IR’s power-management benchmarks
to power their next generation products. For more information, go to www.irf.com.
Trademark Notice
LEDrivIRTM is a trademark of International Rectifier
Corporation and IR® is a registered trademark of
International Rectifier Corporation. All other product names noted
herein may be trademarks of their respective holders.
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