Wolfspeed, A Cree Company, continues its innovation in silicon carbide (SiC) power device technology and packaging with the introduction of the industry’s first 1700V SiC MOSFET offered in an optimized surface mount package designed for commercial use in auxiliary power supplies in high voltage power inverter systems. The higher blocking voltage enables design engineers to replace lower rated silicon MOSFETs with the new SiC MOSFETs, delivering higher efficiency, simplified driver circuitry, and lower thermal dissipation, and resulting in lower total system costs.
The new SMD package, specifically designed for high voltage MOSFETs, has a small footprint with a wide creepage distance: 7mm between drain and source. This is made possible by the small die size and high blocking capability of Wolfspeedâ„¢ SiC planar MOS technology. The new package also includes a separate driver source connection, which reduces gate ringing and provides clean gate signals.
“Our new 1700V SiC MOSFET provides power electronics engineers with significant design advantages, particularly in flyback topologies,” explains Edgar Ayerbe, Wolfspeed marketing manager for power MOSFETs. “Due to the lower switching losses of silicon carbide, the devices operate at much lower junction temperatures. This enables customers to directly mount the devices onto the PCB with no additional heat sinks, which greatly reduces the manufacturing costs and improves the reliability of the systems. The result is a smaller, lighter power supply with a lower system cost than is possible using silicon devices.”
Application of the new 1700V SiC MOSFET is anticipated in auxiliary power supplies within high power inverters – such as solar power inverters, motor drives, UPS equipment, wind-energy converters, and traction power systems — which typically buck down DC voltages to operate system logic, protection circuitry, displays, network interface, and cooling fans. They can also be used in the power supplies of three-phase e-meters, or in any converter application that requires high blocking voltages and low capacitance.
Designated the C2M1000170J, the new 1700V SiC MOSFET features an avalanche rating greater than 1800V, and RDS(on) of 1Ω. These characteristics ensure reliable performance in flyback converter circuits, including those in noisy electrical environments, such as those found in high-power inverters. By enabling the design of single-switch flyback topologies from input voltages spanning 200V to 1000V, the 1700V SiC MOSFET simplifies the complex drive and snubber circuit elements required for silicon devices.
The C2M1000170J is fully qualified and available for immediate sampling. For more information about the new Wolfspeed 1700V SiC MOSFET, please visit wolfspeed.com/power/products to access the product datasheet and wolfspeed.com/power/tools-and-support to download sample gate driver schematics.
Wolfspeed, A Cree Company
www.wolfspeed.com
Randy Fitzgerald says
Now, if some manufacturer would just design and make, an off Grid, Pure Sine wave Inverter, which uses Maxwell’s small size, Ultra Capacitors inside of it,in the LCR, and also these SIC Mosfets,inside the Inverter,and couple this inverter to Maxwell’s Large Ultra Capacitor’s in a series of Banks,and Pulse that Current out of these Large UC’s, as a steady state current, switching this pulsed steady state current, from several UC Banks,in a H-Bridge fashion,while the other UC’s in the Bank, rapidly charge, or use Many more UC’s,in a Bank, which get’s continuously charged, by a Solar source,then to a Nickel Iron battery 1st, then to the UC’S,to maintain this Steady state pulsed current,of say 10 amps or much more? Then we would not need the Battery,and the Large Density Maxwell Ultra Capacitors, would replace the battery Bank. I would like to see a pure Ultra Capacitor system,which is a pulsed steady state Current,out of the UC’s, created as the output of Ultra Capacitor Banks.Which has enough Solar Panel wattage,as the Voltage/Current Driver, to maintain the UC’s Constant current.A stand alone system, which can also be coupled to a Nickel Iron Battery Bank,for 24 Hour duty.These new SIC’S are the answer.We need these, and very soon, because every one will be out of Power, if were attacked by a EMP in the very near future, and the Manufacturer who can build a Commercial backup system,which is Faraday caged, like this, will rule this Market.An off Grid system, for Homes, must be part of that plan as well.
franjo zlatousti says
it’s already made , by “alice in te wonreland” company.Ltd…….:)
Joe Wendell says
This is cool. I hope this is used to build smaller, but powerful UPS and inverter systems that can provide backup power for a long time. This can be especially beneficial to use with solar power inverters to utilize solar power in a more efficient manner.