Achieves Industry’s Lowest Figure-of-Merit in a
Discreet Device
Wolfspeed, a Cree Company and a leader in silicon carbide (SiC)
power products, has expanded its innovative C3M™ platform
through the introduction of a 1200V, 75mΩ MOSFET in its
recently released low-inductance discrete packaging. The new device
simplifies designs and enables an increase in frequency while
maintaining efficiency, lowering system cost, reducing circuit EMI
and enabling 99 percent efficiency levels in three-phase power
factor correction circuits.
These features enable designers of applications such as telecom
power supplies, elevators, grid-tied storage, on and offboard EV
charging, as well as factory automation to increase switching
frequency while maintaining efficiency, decreasing system size and
bill of materials.
“We are very encouraged about the new SiC products being
introduced in new innovative discrete packaging,” said Kurt
Goepfrich, a Siemens hardware architect. “These new package
options, such as the surface-mount 7L D2PAK, allow us to explore
new topologies not possible with existing products available on the
market today.”
This device achieves the industry’s lowest figure-of-merit for
any SiC MOSFET at 1200V. Wolfspeed has released this device in a 4L
TO-247 package and plans to release it in a 7L D2PAK in the coming
weeks.
“SiC MOSFETs have proven to be beneficial for many high-power
applications connected to a battery simply due to the improved
efficiency,” explains John Palmour, Wolfspeed’s CTO. “In the case
where power is bidirectional, such as grid-connected AC-DC, the
potential cost savings are significantly increased due to the
reduction in the size of the input filter.”
The device features Wolfspeed’s third generation C3M planar
MOSFET technology, which engineers have already designed into
various automotive and industrial applications. It features low
on-resistance (75mΩ) combined with a low gate charge, making it
ideally suited for three-phase, bridgeless PFC topologies as well
as AC-AC converters and chargers.
The newly released packages allow engineers to take full
advantage of the high-frequency capability of the latest Wolfspeed™
SiC MOSFET chips. The 4L TO247 package delivers a 3x reduction in
total switching losses compared to a conventional TO-247-3
package.
The 7L D2PAK surface-mount package, specifically designed for
high-voltage MOSFETs, practically eliminates the source inductance
found in other packages and has a footprint 52 percent smaller than
D3PAKs. This is made possible by the small die size and
high-blocking capability of C3M planar MOS technology.
Designers can reduce component-count by moving from
silicon-based, three-level topologies to simpler two-level
topologies made possible by the improved switching performance.
These higher voltage SiC MOSFETs solve many of the limitations of
silicon super-junction MOSFETs that make them impractical to use in
two-level topologies. SiC has significantly lower output
capacitance nonlinearity, making it possible to reduce the
dead-time thereby minimizing total harmonic distortion at higher
switching frequencies.
The new 1200V, 75mOhm MOSFET is available in a through-hole, 4L
TO247 package and is listed as part
number C3M0075120K and is currently available for
purchase from several top distributors. The surface-mount version
of this device, C3M0075120J, will be released in the coming weeks.
Like the 4L-TO247, the surface-mount devices include a
Kelvin-source pin to help minimize gate-ringing and reduce system
losses.
For more complete technical information about Wolfspeed’s new
1200V MOSFET, download its datasheet here. For all other
inquiries about Wolfspeed power products, please
visit http://www.wolfspeed.com/power/products.
About Wolfspeed
Wolfspeed, A Cree Company, is leading the innovation and
commercialization of silicon carbide and gallium nitride,
liberating designers to invent power and wireless systems for a
responsible, energy-efficient future.
Wolfspeed’s wide bandgap semiconductor products for power and
radio-frequency (RF) applications deliver new levels of performance
through increased efficiency, higher switching frequency and
reduced system size and weight for the transportation, industrial,
energy and communications markets.
Please refer to www.wolfspeed.com for additional
product and company information.
About Cree
Cree is a market-leading innovator of lighting-class LEDs,
lighting products and semiconductor products for power and radio
frequency (RF) applications. Cree believes in better light
experiences and is delivering new innovative LED technology that
transforms the way people experience light through high-quality
interior and exterior LED lighting solutions.
Cree’s product families include LED lighting systems and bulbs,
blue and green LED chips, high-brightness LEDs, lighting-class
power LEDs, power-switching devices and RF devices. Cree’s products
are driving improvements in applications such as general
illumination, electronic signs and signals, power supplies and
inverters.
This press release contains forward-looking statements involving
risks and uncertainties, both known and unknown, that may cause
actual results to differ materially from those indicated. Actual
results may differ materially due to a number of factors, including
the risk that we may be unable to manufacture these new products
with sufficiently low cost to offer them at competitive prices or
with acceptable margins; the risk we may encounter delays or other
difficulties in ramping up production of our new products; customer
acceptance of our new products; the rapid development of new
technology and competing products that may impair demand or render
Cree’s products obsolete; and other factors discussed in Cree’s
filings with the Securities and Exchange Commission, including its
report on Form 10-K for the year ended June 26, 2016, and
subsequent filings.
For additional product and Company information, please refer
to www.cree.com.
Cree® is a registered trademark and Wolfspeed™ and
C3M™are trademarks of Cree, Inc.
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version on businesswire.com: http://www.businesswire.com/news/home/20170223005215/en/
Wolfspeed, A Cree CompanyJoanne LathamVP, Corporate
Communicationsjoanne.latham@wolfspeed.com
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