Fairchild Semiconductor’s New Energy-Efficient LED Driver Lights the Way at OSRAM®
December 17 2009 - 9:35AM
Business Wire
Fairchild Semiconductor (NYSE: FCS), a leading global supplier
of high performance products that enable energy-efficiency, has
been selected by one of the world’s largest lighting manufacturers,
OSRAM®, to supply LED driver solutions. The FSEZ1016A was developed
by Fairchild to meet and exceed the stringent performance
benchmarks set by OSRAM.
“We worked closely with OSRAM’s engineers, based at the
company’s LED R&D facilities in China, and frequently discussed
the technical details with OSRAM in our efforts to ensure that the
FSEZ1016A was the industry’s leading LED driver solution,” said
Benjamin Tan, Fairchild’s regional vice president of Sales and
Marketing, China and South East Asia.
“The FSEZ1016A is an excellent example of the value of
Fairchild’s Global Power ResourceSM (GPR),” continued Tan. “We use
regional centers staffed by power engineers and FAEs, who are
tasked with providing on-the-spot design assistance. Our GPRs are
widely recognized as the industry standard for customer design
support.”
Fairchild’s FSEZ1016A fits OSRAM’s 1W-4W LED products. OSRAM is
also considering deploying Fairchild’s FAN6300 LED driver for its
12W to 60W products. The new FSEZ1016A and FAN6300 are designed for
lighting manufacturers seeking energy-efficient LED driver
solutions.
Lighting applications consume nearly 22 percent of electrical
energy generated worldwide. Reducing wasted energy in these
applications can have a significant impact on energy conservation.
As the industry moves from standard incandescent light bulbs to
CFL, LFL and LED lighting, a 75 percent energy saving can be
realized. Fairchild provides solutions for all lighting
applications including linear fluorescent ballast, compact
fluorescent ballast, LED and HID. The company’s extensive product
portfolio ranges from discrete to integrated solutions that contain
PFC controllers, ballast control ICs, high voltage gate drivers and
MOSFETs.
“We look forward to continuing our strategic partnership with
OSRAM and to assisting them with developing and supplying further
innovative devices that benefit consumers as well as the
environment,” commented Tan. “Fairchild is committed to developing
products that further enable energy-efficiency gains and maximize
performance while reducing board space, design complexity and
system costs for our customers.”
About FSEZ1016A: The FSEZ1016A is a primary side
regulation (PSR) pulse-width modulation (PWM) controller,
addressing a critical need in the high brightness (HB) light
emitting diodes (LED) market by simplifying design, reducing board
space and providing important performance advantages. The FSEZ1016A
is an EZSWITCH™ device that integrates a PSR PWM controller with a
power MOSFET. Through this integration, this controller achieves
the most accurate constant current (CC) through built-in
proprietary TRUECURRENT™ technology and tight constant voltage (CV)
without using secondary-side feedback circuitry. By tightening the
constant current over a wide voltage range, the same circuit can
accommodate different numbers of LED units in a string, increasing
design flexibility, accelerating time-to-market and stretching the
lifetime of HB LEDs. With this high level of integration, this PSR
PWM controller conserves board space, accommodating the form factor
of lamp cases that continue to diminish in size.
To minimize the standby power consumption, the proprietary
green-mode function provides off-time modulation to linearly
decrease PWM frequency under light-load conditions. This green mode
function assists the power supply in meeting power conservation
requirements.
About FAN6300: The highly integrated FAN6300 PWM
controller provides several features to enhance the performance of
flyback converters. A built-in HV startup circuit can provide more
startup current to reduce the startup time of the controller. Once
the VDD voltage exceeds the turn-on threshold voltage, the HV
startup function is disabled immediately to improve power
consumption. An internal valley voltage detector ensures the power
system operates at quasi-resonant operation in wide-range line
voltage and any load conditions, and reduces switching loss to
minimize switching voltage on drain of power MOSFET.
To minimize standby power consumption and light-load efficiency,
a proprietary green-mode function provides off-time modulation to
decrease switching frequency and perform extended valley voltage
switching to keep to a minimum switching voltage.
The FAN6300 controller also provides many protection functions.
Pulse-by-pulse current limiting ensures the fixed peak current
limit level, even when a short circuit occurs. Once an open-circuit
failure occurs in the feedback loop, the internal protection
circuit disables PWM output immediately. As long as VDD drops below
the turn-off threshold voltage, the controller also disables PWM
output. The gate output is clamped at 18V to protect the power
MOSFET from high gate-source voltage conditions. The minimum tOFF
time limit prevents the system frequency from being too high. If
the DET pin reaches OVP, internal OTP is triggered, and the power
system enters latch-mode until AC power is removed.
About OSRAM:
OSRAM is part of Siemens’ Industry sector and is one of the
world’s two leading lighting manufacturers. In FY 2008 (to
September 30, 2008) it generated business worth €4.6 billion, of
which 88 percent was in other countries. OSRAM is a high-tech
business in the lighting industry – over 65 percent of its business
is in energy-efficient products today. This globally oriented
company employs over 43,500 people worldwide, supplies customers in
around 150 countries and manufactures at 46 production facilities
in 17 countries.
About Fairchild Semiconductor:
Fairchild Semiconductor (NYSE: FCS) is a global leader
delivering energy-efficient power analog and power discrete
solutions. Fairchild is The Power Franchise®, providing
leading-edge silicon and packaging technologies, manufacturing
strength and system expertise for consumer, communications,
industrial, portable, computing and automotive systems. An
application-driven, solution-based semiconductor supplier,
Fairchild provides online design tools and design centers worldwide
as part of its comprehensive Global Power ResourceSM. Please
contact us on the web at www.fairchildsemi.com.
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