Power Innovation From STMicroelectronics Could Save Greenhouse Gas Generation Equal to Emissions of Thousands of Cars

Power Innovation From STMicroelectronics Could Save Greenhouse Gas Generation 
Equal to Emissions of Thousands of Cars 
New Superjunction MOSFETs Featuring Reduced Gate Charge Increase
Energy Efficiency in LCD TV Power Supplies and Other Electronics
Applications 
GENEVA -- (Marketwire) -- 03/13/13 --   STMicroelectronics (NYSE:
STM), a global semiconductor leader serving customers across the
spectrum of electronics applications, has announced special
fast-acting variants of its advanced superjunction power MOSFETs used
in energy-efficient consumer products, computing and telecom systems,
lighting controllers and solar energy equipment. 
The latest devices step up efficiency in the type of power supplies
often used in equipment such as mid-sized televisions in the 200-500W
power range. If fitted in each of the 200 million LCD TVs produced
each year[1], the new MDmesh II Plus(TM) Low Qg (low gate charge)
power transistors featuring reduced gate charge could reduce
greenhouse gas emissions by over 140,000 tons per year, equivalent to
taking around 30,000 passenger vehicles off the road[2]. 
Perfected only by a small number of manufacturers, superjunction
technology allows power transistors to combine small size, high
voltage capacity, and outstanding energy efficiency when turned on.
ST is a world leader in this type of technology with its MDmesh power
MOSFETs, and now delivers even better performance with its latest
MDmesh II Plus(TM) Low Qg family. These devices feature a reduced
internal charge for high efficiency when switching as well as when
conducting, saving even more energy in resonant-type power supplies
that are widely used in LCD TVs. 
The enhanced design of the new devices results in a low gate charge
(Qg) as well as low input and output capacitance. Each of these
factors contributes to faster and more efficient switching, which
encourages designers to use superjunction transistors in the resonant
type of power supplies typically seen in LCD TVs. Until now,
superjunction transistors have been used most effectively in
hard-switching topologies, where the device is made to switch even
while the current and voltage remain high. In a resonant power supply
two inductors and a capacitor (LLC converter) ensure the transistor
is switched at zero voltage to smooth the flow of energy in the
system and help increase efficiency. The new MDmesh II Plus(TM) Low
Qg family is also highly resistant to the effects of large and sudden
changes in applied voltage (high dv/dt ruggedness), which can damage
transistors and cause spurious switching. This allows the latest
devices to perform reliably even when exposed to large voltage
transients such as noise and harmonics on AC power lines. 
The first MDmesh II Plus(TM) Low Qg device to enter production is the
STP24N60M2 in the TO-220 package. Unit pricing is $2.50 for volumes
in the range of 1,000 pieces. If your company has a high-volume need,
please contact your ST sales office. ST will expand the family to
include over 50 devices, in a variety of packages such as TO-220FP,
I2PAK, I2PAK FP, D2PAK, TO-247 and PowerFLAT 8x8. 
Major features of STP24N60M2: 


 
--  On-state resistance (RDS(ON)): 190mohms
--  Breakdown voltage: 600V
--  Maximum continuous drain current (ID): 18A
--  dv/dt ruggedness: 50V/ns
--  100% avalanche tested

  
About STMicroelectronics
 ST is a global leader in the semiconductor
market serving customers across the spectrum of sense and power and
automotive products and embedded processing solutions. From energy
management and savings to trust and data security, from healthcare
and wellness to smart consumer devices, in the home, car and office,
at work and at play, ST is found everywhere microelectronics make a
positive and innovative contribution to people's life. By getting
more from technology to get more from life, ST stands for
life.augmented. 
In 2012, the Company's net revenues were $8.49 billion. Further
information on ST can be found at www.st.com. 
[1] NPD DisplaySearch Advanced Quarterly Global TV Shipment and
Forecast Report, November 2012 
[2] Based on a 0.5% efficiency increase at half load (100W), saving
3Wh per day assuming average TV usage of 6 hours per day, hence
saving around 1kWh per year per TV. In 200 million TVs, global saving
is 200GWh. US Environmental Protection Agency (www.epa.gov)
equivalence calculator equates this to 141,110 tons CO2 equivalent,
matching greenhouse gas emissions of 29,328 passenger vehicles 
New Power MOSFETs from ST:
http://hugin.info/152740/R/1684925/551838.pdf 
 New Power MOSFETs
from ST_IMAGE: http://hugin.info/152740/R/1684925/551839.jpg  
For Press Information Contact:
STMicroelectronics
Michael Markowitz
Director Technical Media Relations
+1 781 591 0354
michael.markowitz@st.com 
 
 
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