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Infineon's cool 1200V SiC JFET family moves power into the next dimension

With direct drive technology, the firm's latest silicon carbide devices offer high efficiency levels for solar inverters

Infineon Technologies has unveiled the new CoolSiC 1200V SiC JFET family.

Infineon says its revolutionary new product line takes advantage of more than a decade of its experience in SiC technology development as well as high quality, high volume production.

Infineon's T0-247 CoolSiC 1200V device

“Infineon has a strong track record in launching break-through technologies aimed at markets requiring highly efficient power management. CoolSiC is again a revolutionary, highly innovative technology specifically designed for reaching new levels of performance in solar inverters,” comments Jan-Willem Reynaerts, Product Segment Head of High Voltage Power Conversion at Infineon. “With Infineon’s new SiC JFET technology we enable our customers to further shape the future of climate saving solutions.”

The new CoolSiC 1200V SiC JFETs have dramatically lower switching losses compared to IGBTs, which allow higher switching frequencies to be used without sacrificing overall system efficiency. This enables the use of much smaller passive components, which result in smaller overall solution size, lower weight and reduced system cost. Alternatively, a higher output power solution can be realised within the same inverter housing.

In order to ensure that the normally-on JFET technology is safe and easy to use, Infineon has developed a concept called Direct Drive Technology. In this, the JFET is combined with an external Low Voltage MOSFET and a dedicated Driver IC which ensures safe system start-up conditions as well as fast and controlled switching.

The CoolSiC JFET features a monolithically integrated body diode that has a switching performance comparable to an external SiC Schottky barrier diode. This combination is claimed to offer the utmost in efficiency, reliability, safety and ease of use.

Samples of the CoolSiC JFET products as well as the Driver ICs are available in the second quarter of 2012. First OEM ramp-ups are expected in the first half of 2013. Pricing for IJW120R100T1 (100mΩ) will be US$ 24.90 (€ 18.44) per piece, for a 1,000 piece quantity.

Infineon is presenting the new CoolSiC 1200V SiC JFET series at the PCIM Europe 2012, taking place May 8th and 10th in Nuremberg, Germany, in Hall 12 at booth #404.
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