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19.03.2024 0:07:37
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CoolSiC™ MOSFET 1700 V SMD enables best efficiency and reduced complexity for high voltage auxiliary power supplies
Infineon Technologies AG complements its CoolSiC™ MOSFET offering with yet another voltage class. Having added 650 V to the portfolio earlier this year, the company is now launching the 1700 V class with its proprietary trench semiconductor technology.

Maximizing the strong physical characteristics of silicon carbide (SiC), this ensures that the new 1700 V surface-mounted devices (SMD) offer superior reliability, as well as low switching and conduction losses. The CoolSiC MOSFETs 1700 V are targeting auxiliary power supplies in three-phase conversion systems such as motor drives, renewables, charging infrastructure and HVDC systems.

Such low-power applications usually operate below 100 W. In these cases, designers very often prefer a single-ended flyback topology. With the new CoolSiC MOSFETs 1700 V in SMD package, this topology is now even enabled for DC-link connected auxiliary circuits up to 1000 V DC input voltage. High efficiency and high reliability auxiliary converters using a single-ended flyback converter can now be implemented in three-phase power conversion systems. This leads to smallest footprints and a reduced bill-of-materials.

“Trench technology of a CoolSiC MOSFET balancing performance and reliability in operation is now available for 1700 V”, said Dr. Peter Friedrichs, Senior Director SiC at the Industrial Power Control Division of Infineon. “It combines the best of SiC properties: low losses with small footprint, in a high voltage SMD package. This helps our customers to significantly reduce the complexity in their auxiliary power supplies”.

The 1700 V blocking voltage eliminates design concerns regarding overvoltage margin and reliability of power supplies. CoolSiC trench technology features lowest device capacitances and gate charges for transistors of this voltage class. The result is a power loss reduction by more than 50 percent and 2.5 percent higher efficiency compared to state-of-the art 1500 V silicon MOSFETs. The efficiency is 0.6 percent higher, compared to other 1700 SiC MOSFETs. The low losses enable compact SMD assembly with natural convection cooling without the need for a heatsink.

The new 1700 V CoolSiC trench MOSFETs are optimized for flyback topologies with +12 V / 0 V gate-source voltage compatible with common PWM controllers. Thus, they do not need a gate driver IC and can be operated directly by the flyback controller. On-resistance ratings are 450 mΩ, 650 mΩ or 1000 mΩ. The new 7 lead D²PAK SMD package offers extended creepage and clearance distances over 7 mm. With that, it fulfills the usual 1700 V application requirements and PCB specifications, minimizing isolation efforts for the design.

Availability

CoolSiC MOSFETs 1700 V in D²PAK-7L package are available and in series production. More information is available at www.infineon.com/coolsic-mosfet.


Infineon introduces a new single-stage flyback controller for battery charging applications, enabling hassle-free and scalable designs
Battery-powered appliances, one of the industry’s fastest-growing segments, require energy-efficient, robust, and cost-effective battery charging. For this reason Infineon Technologies AG extends its offering of AC-DC controller ICs by introducing the ICC80QSG single-stage PWM controller for flyback topologies.

Infineon and Oxford Ionics join forces to develop leading Trapped Ion Quantum Processors
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Infineon adds 40 V device in PQFN to its OptiMOS™ Source-Down power MOSFET family
Contemporary power system designs demand high power density levels and small form factors to maximize system-level performance. Infineon Technologies AG tackles this challenge by focusing on system innovation with enhancements on the component level. Adding to the 25 V device introduced in February, Infineon now brings the OptiMOS™ 40 V low-voltage power MOSFET to the market.

QPL-qualified SupIR-SMD package for rad hard MOSFETs enables higher performing space power systems
Reliably attaching surface mount hermetic power packages to PCBs is a common challenge faced by space system designers.

CoolSiC™ MOSFET 1700 V SMD enables best efficiency and reduced complexity for high voltage auxiliary power supplies
Infineon Technologies AG complements its CoolSiC™ MOSFET offering with yet another voltage class. Having added 650 V to the portfolio earlier this year, the company is now launching the 1700 V class with its proprietary trench semiconductor technology.

Secured connectivity and blockchain technology for data-driven supply chains
Industrial supply chain solutions like digital twins, usage-based pricing models, product warranties or licensing solutions increasingly require reliable and auditable sensor and process data. Yet security is paramount, especially when data is transferred from one company or organization to another.

Safety in cars: Infineon’s AURIX™ is the first embedded safety controller worldwide to be ASIL-D certified according to ISO 26262:2018

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Kalendář
SENSOR+TEST 2024, 11.-13.6.2024, Nuremberg, DE
electronica 2024, 12.11.-15.11.2024, Munich, DE
DistribuTECH, 11.2.-13.2.2025, Dallas, TX

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