Fairchild Semiconductor’s PWM Controllers Improve Efficiency at Light Load
December 03 2009 - 11:00AM
Business Wire
Fairchild Semiconductor (NYSE: FCS), as part of the global focus
on energy savings, has developed a portfolio of pulse-width
modulated (PWM) controllers, which enable notebook power-supply
designers to meet the stringent international energy-saving
regulations. These include the ENERGY STAR External Power Supply
(EPS) version 2.0 requirement that mandates 87 percent average
active-mode efficiency to obtain compliance.
To meet these requirements, Fairchild has developed integrated
PWM controllers, like the FAN6754, which offers designers
high-voltage startup to improve energy savings at light load by 25
percent when compared to alternate solutions. It also eliminates
external protection circuits by incorporating over-voltage,
over-current and over-temperature protection plus brownout and
line-compensation functions.
Other advantages of Fairchild’s PWM controllers include
frequency hopping, which reduces EMI emissions by as much as 5-10
dB, and internal soft start (8 ms) to reduce voltage stress on the
MOSFET at start up.
Additionally, Fairchild’s PWM controllers incorporate several
design features that lower the overall power consumption of
notebook adapters, such as a proprietary green-mode function that
provides off-time modulation to continuously decrease the switching
frequency under light-load conditions. Fairchild’s PWM devices
offer a host of robust, accurate protection features built-in to
protect the power supply and the load from failure, all without
adding external components or circuitry.
The FAN6754 is part of a comprehensive portfolio of power
products that improve efficiency to meet stringent energy
efficiency standards, reduce component count, simplify design and
improve power factor in today’s electronics.
Price (each, 1k pcs.): $0.42
Availability: Samples available now
Delivery: 6 weeks
Contact Information:
To contact Fairchild Semiconductor about this product, please go
to: http://www.fairchildsemi.com/cf/sales_contacts/.
For information on other products, design tools and sales
contacts, please visit: http://www.fairchildsemi.com.
Note to Editor: For a datasheet in PDF format, please go
to:
http://www.fairchildsemi.com/ds/FA/FAN6754.pdf
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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