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Infineon Technologies AG launched the next generation of high-density power modules which play a pivotal role in enabling AI and high-performance compute. Through enhanced system performance and with Infineon’s trademark robustness, the new OptiMOS™ TDM2454xx quad-phase power modules enable best-in-class power density and total-cost-of-ownership (TCO) for AI data centers operators.
The OptiMOS TDM2454xx quad-phase power modules enable true vertical power delivery (VPD) and offer industry’s best current density of 2 Ampere per mm². The modules follow the OptiMOS TDM2254xD and the OptiMOS TDM2354xD dual-phase power modules introduced by Infineon last year, and continue to enable superior power density for accelerated compute platforms.
In traditional horizontal power delivery systems, power needs to travel across the surface of the semiconductor wafer, which can result in higher resistance and significant power loss. Vertical power delivery minimizes the distance that power needs to travel, thereby reducing resistive losses enabling increased system performance.
Data centers are currently responsible for two percent of global energy consumption according to the IEA. Fueled by AI, the power demands within data centers are expected to grow by 165% between 2023 and 2030. Continually improving the efficiency and power densities of power conversion from grid-to-core is vital to enable further advancements in compute performance while reducing TCO.
“We are proud to expand our high-performance AI data center solutions with the OptiMOS TDM2454xx VPD modules,” said Rakesh Renganathan, Vice President Power ICs at Infineon Technologies. “We take a three-dimensional design approach and leverage our industry-leading power devices, packaging technologies and extensive systems expertise to provide high-performance and energy-efficient computing solutions as part of our mission to drive digitalization and decarbonization.”
The OptiMOS TDM2454xx modules are a fusion of Infineon’s robust OptiMOS 6 trench technology, chip-embedded package for superior electrical and thermal efficiencies, and innovative low-profile magnetic design that continue to push the envelope for performance and quality of VPD systems.
Additionally, the OptiMOS TDM2454xx has a footprint that is designed to enable module tiling and improving current flow that enhance electrical, thermal and mechanical performance. The OptiMOS TDM2454xx modules support up to 280A across four phases with an integrated embedded capacitor layer within a small 10x9mm² form factor. Combined with Infineon’s XDP™ controllers, they offer a robust power solution with improved system power density.
The OptiMOS TDM2454xx modules are further strengthening Infineon’s unique position in the market with the broadest product and technology portfolio based on all relevant semiconductor materials to power different AI server configurations from grid to core in the most energy efficient way.
Original – Infineon Technologies
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Cambridge GaN Devices revealed more details about a solution that will enable the company to address EV powertrain applications over 100kW – a market worth over $10B – with its ICeGaN® gallium nitride (GaN) technology. Combo ICeGaN® combines smart ICeGaN HEMT ICs and IGBTs (Insulated-Gate Bipolar Transistors) in the same module or IPM, maximizing efficiency and offering a cost-effective alternative to expensive silicon carbide (SiC) solutions.
Dr GIORGIA LONGOBARDI | FOUNDER AND CEO, CGD
“Today, inverters for EV powertrains either use IGBTs which are low cost but inefficient at light load conditions, or SiC devices which are very efficient but also expensive. Our new Combo ICeGaN solution will revolutionise the EV industry by intelligently combining the benefits of GaN and silicon technologies, keeping cost low and maintaining the highest levels of efficiency which, of course, means faster charging and longer range. We are already working with Tier One automotive EV manufacturers and their supply chain partners to bring this technology advancement to the market.”The proprietary Combo ICeGaN approach uses the fact that ICeGaN and IGBT devices can be operated in a parallel architecture having similar drive voltage ranges (e.g. 0-20V) and excellent gate robustness. In operation, the ICeGaN switch is very efficient, with low conduction and low switching losses at relatively low currents (light load), while the IGBT is dominant at relatively high currents (towards full load or during surge conditions).
Combo ICeGaN also benefits from the high saturation currents and the avalanche clamping capability of IGBTs and the very efficient switching of ICeGaN. At higher temperatures, the bipolar component of the IGBT will start to conduct at lower on-state voltages, supplementing the loss of current in the ICeGaN. Conversely, at lower temperatures, ICeGaN will take more current. Sensing and protection functions are intelligently managed to optimally drive the Combo ICeGaN and enhance the Safe Operating Area (SOA) of both ICeGaN and IGBT devices.
ICeGaN technology allows EV engineers to enjoy GaN’s benefits in DC-to-DC converters, on-board chargers and potentially traction inverters. Combo ICeGaN further extends the benefits of CGD’s GaN technology into the rich 100kW+ traction inverter market. ICeGaN ICs have been proven to be very robust and IGBTs have a long and proven track record in traction and EV applications. Similar, proprietary parallel combinations of ICeGaN devices with SiC MOSFETs have also been proven by CGD, but Combo ICeGaN – which is now detailed in a published IEDM paper – is a far more economical solution. CGD expects to have working demos of Combo ICeGaN at the end of this year.
Prof. FLORIN UDREA | FOUNDER AND CTO, CGD
“Having worked for three decades in the field of power devices, this is the first time I have encountered such a beautifully complementary technology pairing. ICeGaN is extremely fast and a star performer at light load conditions while the IGBT brings great benefits during full load, surge conditions and at high temperatures. ICeGaN provides on-chip intelligence while the IGBT provides avalanche capability. They both embrace silicon substrates which come with cost, infrastructure and manufacturability advantages.”CGD will be exhibiting at APEC (Applied Power Electronics Conference and Exposition). For more details about Combo ICeGaN, visit Booth 2039 at the Georgia World Congress Center | Atlanta, GA | March 16-20, 2025.
Original – Cambridge GaN Devices
