Date: 23rd May 2011
Switching ICs from Power Integration offer
zero stand-by power
Power Integrations, has introduced two new members of
its LinkZero-AX product family (LNK585 and LNK586), along
with a PI University introductory video course that explains
how designers can achieve 0.00 watts of standby energy consumption.
Launched in October 2010, the LinkZero-AX integrated offline
switching IC family now offers increased main power output
up to 6.5 watts - double the maximum output of earlier members
of the product family. The expanded power range enables
designers to utilize LinkZero-AX in a wider array of applications,
including those with multiple auxiliary power functions,
as is often the case in appliances, TVs, and remotely controlled
electronic lighting ballasts.
LinkZero-AX eliminates wasted energy by employing an innovative
power-down mode that effectively turns off the auxiliary
power supply when the application is idle, shutting down
switch-mode operation and internal switch control circuits.
LinkZero-AX can be re-awakened from power-down mode with
a reset pulse or button press. Also, the bypass pin can
provide up to 500 µA for use by any system-control
or sensing circuit.
Comments Silvestro Fimiani, product marketing manager at
Power Integrations: "Last year, we launched the industry's
first IEC 62301 'Zero No-Load' IC family for appliances
with the cost-effective LinkZero-AX. Extending the power
range of LinkZero-AX to 6.5 watts means that appliance applications
which require multiple auxiliary power functions can now
achieve zero no-load."
Auxiliary power supplies continuously draw power as long
as the product is plugged in, typically resulting in significant
standby energy waste. LinkZero-AX ICs can reduce this usage
to a minuscule 3 mW - low enough to be considered "zero"
under IEC standards. (IEC 62301 Clause 4.5 classifies power
usage of than 5 mW as zero.) Five years of continuous standby
operation at 3 mW would consume less than 2 cents worth
of energy.
Delivering the industry's lowest component count for standby
power supplies, LinkZero-AX is a simple design upgrade and
allows designers to easily exceed all global energy-efficiency
regulations, including the European EcoDesign Directive
and ENERGY STAR.
LinkZero-AX ICs are available now in SO-8C or SMD-8C packages
priced at $0.41 each for 10,000-piece quantities (LNK586DG).
Full technical details, including the PI University course,
product datasheet, and design ideas are available now on
the Power Integrations website at www.powerint.com/linkzero-ax.
|