Power

CoolSiC 62mm module applications for silicon carbide

1st July 2020
Alex Lynn

Infineon Technologies has added another industry standard package to its CoolSiC MOSFET 1,200V module family. The proven CoolSiC  62mm device has been designed in half-bridge topology and is based on the trench chip technology

It opens up silicon carbide for applications in the medium power range starting at 250kW – where silicon reaches the limits of power density with IGBT technology. Compared to a 62mm IGBT module, the list of applications now additionally includes solar, server, energy storage, EV charger, traction, commercial induction cooking and power conversion systems.

The 62mm module features Infineon’s CoolSiC MOSFETs, which enable a high current density. Very low switching and conducting losses minimise cooling efforts, whereas operating the device at high switching frequency allows for using smaller magnetic components. By implementing Infineon's CoolSiC chip technology, it is possible to design smaller inverter designs for the application in terms of size, overall system costs can be reduced.

With a base plate and screw connections, the housing is characterised by a very robust mechanical design, which is optimised for highest system availability, a minimum of service cost and off-time losses. The outstanding reliability is made possible by high thermal cycling capability and a continuous operating temperature (Tvjop) of 150°C. The symmetrical internal design of the housing allows identical switching conditions for the upper and lower switch. As an option, the thermal performance of the module can be improved even further with pre-applied thermal interface Material (TIM). The CoolSiC MOSFETs 1,200V in the 62mm package come in variants of 6 mΩ/250 A, 3 mΩ/357 A, and 2mΩ/500 A respectively. Designed for fast characterisation (double pulse/continuous operation), an evaluation board is available for the devices. For ease of use, it offers a flexible adjustment of the gate voltage and gate resistors. At the same time, it can serve as a reference design for driver boards for series production.

Virtual PCIM 2020 booth

This year, Infineon will run the PCIM 2020 completely virtually. As always, visitors can expect a comprehensive insight into product innovations and application solutions. With the broadest portfolio of power semiconductors – spanning silicon, silicon carbide (CoolSiC) and gallium nitride (CoolGaN) technologies – Infineon continues to set the benchmark. The online trade fair opens its doors starting 1st July 2020.

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