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THE EUROPEAN JOURNAL FOR POWER ELECTRONICS AND TECHNOLOGY

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New industrial MOSFETs increase system power density

20 June 2024  

  The electronics industry is witnessing a significant shift towards more compact and powerful systems, driven by technological advancements and a growing focus on decarbonization efforts. With the introduction of their Thin-TOLL 8×8 and TOLT packages, Infineon claims it is actively accelerating and supporting these trends by enabling a maximum utilisation of the PCB mainboard and daughter cards, while also taking the system’s thermal requirements and space restrictions into account. The company is now expanding its portfolio of CoolSiC™ MOSFET discretes 650 V with two new product families housed in the Thin-TOLL 8×8 and TOLT packages. Based on the CoolSiC Generation 2 (G2) technology, the perportedly offer significantly improved figures-of-merit, reliability, and ease-of-use. Both product families specifically target high and medium switching-mode power supplies (SMPS), including AI servers, renewable energy, EV chargers, and large home appliances.

The Thin-TOLL package has a form factor of 8×8 mm claining best-in-class Thermal Cycling on Board (TCoB) capability on the market. The TOLT package is a top-side cooled (TSC) enclosure with a similar form factor to TOLL. Both package types offer developers several benefits: Using them in AI and server power supply units (PSU), for example, reduces the thickness and length of the daughter cards and allows for a flat heat sink. When used in microinverters, 5G PSU, TV PSU and SMPS, the Thin-TOLL 8×8 package allows for a minimization of the PCB area occupied by the power supply devices on the mainboard, while TOLT keeps the junction temperature of the devices under control, given that these applications typically use convection cooling. In addition, TOLT devices complete Infineon’s top-side cooled CoolSiC industrial portfolio, namely CoolSiC 750 V in Q-DPAK. They enable developers to reduce the PCB footprint occupied by SiC MOSFETs when the power to be delivered to the devices does not require a Q-DPAK package.

For more information visit: www.infineon.com

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