en.Wedoany.com Reported - Infineon Technologies AG has released a silicon carbide bidirectional switch based on its CoolSiC Gen2 technology, claimed to be the industry's first of its kind. This 750V device integrates two power switches into a single package, designed to simplify system design and deliver more efficient, compact power conversion solutions for automotive, industrial, and energy applications.

The device features a vertically integrated dual-chip structure with a common-drain configuration, packaged in a top-cooled Q-DPAK. By integrating bidirectional switching functionality into a single component, this solution reduces the number of peripheral components and enables developers to explore new power conversion topologies.

Infineon states that the 750V CoolSiC bidirectional switch is optimized for applications requiring high efficiency and long-term reliability. Its optimized on-resistance, reverse recovery charge, and output charge characteristics help reduce switching and conduction losses. Other key parameters include a typical gate threshold voltage of 4.5V, high immunity to parasitic turn-on, and an extended gate bias tolerance from -11V to 25V. The initial product series covers an on-resistance range from 14 mΩ to 66 mΩ.

The bidirectional switch is designed for demanding power environments, with a breakdown voltage of 840V, supporting DC bus voltages above 500V. The company also highlights its avalanche robustness, overload capability up to 200°C (for 100 hours), and a short-circuit withstand time of 2 microseconds, aimed at enhancing resistance to voltage surges, transient events, and inrush currents.

As part of Infineon's top-cooled product line, the device supports advanced thermal management solutions, including direct liquid cooling. This capability is particularly important for high-power-density applications such as AI infrastructure and next-generation energy systems.

In the automotive sector, target applications include on-board chargers, electric vehicle charging systems, eFuse implementations, and pre-charge circuits. When paired with Infineon's CoolSiC H-DPAK half-bridge solution, the bidirectional switch enables highly integrated single-stage on-board charger architectures based on silicon carbide technology.

In the industrial market, Infineon notes application opportunities for the device in AI data centers for high-voltage DC power supplies, residential solar and energy storage systems, HVAC equipment, eVTOL motor drives, power distribution protection systems, and fast charging infrastructure for autonomous and humanoid robot platforms. Samples of the 750V CoolSiC bidirectional switch are now available.

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