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Infineon’s new CoolSiC™ MOSFETs 2000 V offer increased power density without compromising system reliability
26/03/2024Infineon Technologies AG (FSE: IFX / OTCQX: IFNNY) introduces the new CoolSiC™ MOSFETs 2000 V in the TO-247PLUS-4-HCC package to meet designers’ demand for increased power density without compromising the system’s reliability even under demanding high voltage and switching frequency conditions. The CoolSiC MOSFETs offer a higher DC link voltage so that the power can be increased without increasing the current. It is the first discrete silicon carbide device with a breakdown voltage of 2000 V on the market and comes in a TO-247PLUS-4-HCC package with a creepage distance of 14 mm and clearance distance of 5.4 mm. With low switching losses, the devices are ideal for solar (e.g. string inverters) as well as energy storage systems and electric vehicle charging applications.
The CoolSiC MOSFET 2000 V product family is ideally suited for high DC link systems with up to 1500 V DC. Compared to 1700 V SiC MOSFETs, the devices also provide a sufficiently high overvoltage margin for 1500 V DC systems. The CoolSiC MOSFETs deliver a benchmark gate threshold voltage of 4.5 V and are equipped with a robust body diode for hard commutation. Due to the .XT connection technology, the components offer first-class thermal performance. They are also highly resistant to humidity.
In addition to the CoolSiC MOSFETs 2000 V, Infineon will soon be launching the matching CoolSiC diodes: The first launch will be the 2000 V diode portfolio in the TO-247PLUS 4-pin package in the third quarter of 2024, followed by the 2000 V CoolSiC diode portfolio in the TO-247-2 package in the final quarter of 2024. These diodes are particularly suitable for solar applications. A matching gate driver portfolio is also available.
650 V up to 2000 V CoolSiC™ MOSFET discretes ideally suited for hard- and resonant-switching topologies
Infineon CoolSiC™ MOSFETs are built on a state-of-the-art trench semiconductor process optimized to allow for both the lowest losses in the application and the highest reliability in operation. The discrete CoolSiC™ MOSFET portfolio comes in 650 V, 750 V, 1200 V, 1700 V and 2000 V voltages classes, with on-resistance ratings from 7 mΩ up to 1000 mΩ. CoolSiC™ trench technology enables a flexible parameter-set, which is used for implementation of application-specific features in respective product portfolios, e.g.: gate-source voltages, avalanche specification, short-circuit capability, or internal body diode rated for hard commutation.
Our range of 650 V CoolSiC™ MOSFETs offer optimized switching behaviors at high currents and low capacitances and are designed for a variety of industrial applications including, servers, telecom, motor drives, and more. The 750 V and 1200 V MOSFET range is available for both industrial and automotive qualified applications, such as on-board charger/PFC, auxiliary inverters, and uninterruptible power supply (UPS). The selection of 1700 V CoolSiC™ MOSFET is offered with flyback typology that can be used in energy storage systems, fast EV charging, power management (SMPS, and solutions for solar energy systems. Lastly, the 2000 V CoolSiC™ MOSFET offers increased power density and voltage margin, designated for high voltage applications such as fast EV charging, and solutions for solar energy systems.
Highlights
CoolSiC™ MOSFETs in discrete packages are ideally suited for both hard- and resonant-switching topologies like power factor correction (PFC) circuits, bi-directional topologies, and DC-DC converters or DC-AC inverters. An excellent immunity against unwanted parasitic turn-on effects creates a benchmark in low dynamic loss, even at zero volt turn-off voltage in bridge topologies. Our TO- and SMD offering comes also with Kelvin-source pins for optimized switching performance.
We complete the SiC discrete offering with a range of selected driver IC products fulfilling the needs of the ultrafast SiC MOSFET switching feature. Together, CoolSiC™ MOSFETs and EiceDRIVER™ gate driver ICs leverage the advantage of SiC technology: improved efficiency, space, and weight savings, part count reduction, enhanced system reliability.
CoolSiC™ MOSFETs in discrete housings come along with a fast internal freewheeling diode, thus making hard switching without additional diode chips possible. Due to its unipolar character, the MOSFETs show very low, temperature-independent switching and low conduction losses, especially under partial load conditions.
Our unique silicon carbide (SiC) CoolSiC™ MOSFET discrete products from 650 V up to 2000 V are ideally suited for hard- and resonant-switching topologies such as LLC and ZVS, and can be driven like an IGBT or CoolMOS™, using standard drivers. These robust devices offer superior gate oxide reliability enabled by state-of-the-art trench design, best-in-class switching and conduction losses, highest transconductance level (gain), threshold voltage of Vth = 4 V and short-circuit robustness.
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