Cirrus Logic CS1501, CS1601 Digital Power Factor Correction ICs Improve Power Supply System Performance and Simplify Designs
June 14 2011 - 9:00AM
Business Wire
With the introduction of the CS1501/CS1601, Cirrus Logic Inc.
(Nasdaq: CRUS), a leader in high-precision analog and digital
signal processing components, continues to expand its line of
digital power factor correction (PFC) ICs and sharpen its focus on
new digital energy control-related products. Much like the
CS1500/CS1600, which were introduced in 2010, these new digital PFC
devices compete head-to-head with legacy analog PFC controllers by
offering superior performance and allowing for simpler and smaller
system designs.
The CS1501 and CS1601 are digitally controlled, variable
frequency discontinuous conduction mode (VF-DCM), active power
factor correction ICs intended for use in switch-mode power
supplies rated up to 300 watts. The CS1501 is designed to address
power supplies, such as laptop adapters, digital TVs and PC power,
while the CS1601 targets lighting applications, such as LED and
fluorescent electronic lighting ballasts.
PFC is required in many electronic applications around the
world, as global regulations are driving to improve overall
efficiency of the utility grid. Traditional analog PFC controllers
are nearing the end of their capabilities to meet increasingly
strict global regulatory requirements and standards, and new
digital solutions enable continued performance and feature
improvements designed to meet future market demands.
Featuring Cirrus Logic’s EXL Core™ architecture, with its 70
patented and patent-pending digital algorithm technologies in power
management and energy control, the CS1501 and CS1601 provide an
inherent advantage over legacy analog products by intelligently
solving increasingly complex system level challenges that face
power supply designers today. Through its patent-pending digital
noise shaping technology, both the CS1501 and CS1601 offer
best-in-class THD, power factor and efficiency across all load
conditions, while also reducing the size and number of required
external components. The CS1501/CS1601 also offer an industry
standard pinout to ensure an easy upgrade path from legacy analog
solutions.
“Cirrus Logic continues to invest and expand our portfolio of
digital technologies and products for the lighting and power supply
markets,” said David Biven, director of Marketing, Cirrus Logic’s
Energy, Exploration and Lighting Division. “Cirrus Logic is
committed to the development of innovative ICs that help our
customers create cost-effective, smarter, greener energy
products.”
For more information on global regulations and power consumption
challenges within applications, see the Cirrus Logic white paper:
The Digital Imperative: The Rising Wave in Power Factor Correction
(PFC) Techniques.
Pricing and Availability
The CS1501 and CS1601 are available in an 8-pin SOIC package and
are available today priced at $.52 in quantities of 100,000.
Cirrus Logic, Inc.
Cirrus Logic develops high-precision, analog, digital and
mixed-signal integrated circuits for a broad range of innovative
customers. Building on its diverse analog, digital and
signal-processing patent portfolio, Cirrus Logic delivers highly
optimized products for a variety of audio and energy-related
applications. The company operates from headquarters in Austin,
Texas, with offices in Tucson, Ariz., Europe and Asia. More
information about Cirrus Logic is available at www.cirrus.com.
Cirrus Logic, Cirrus and EXL Core are trademarks of Cirrus Logic
Inc. All other product names noted herein may be trademarks of
their respective holders.
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