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ROHM Begins Production of 150V GaN HEMTs

The GNE10xxTB series is offered in a highly versatile package featuring superior heat dissipation and large current capability, facilitating handling during the mounting process.

ROHM has recently started the production of its 150V GaN HEMTs, GNE10xxTB series (GNE1040TB) that increase the gate withstand voltage (rated gate-source voltage) to an industry-leading 8V.

ROHM GaN HEMTsIt is ideally to be applied in power supply circuits for industrial equipment such as base stations and data centers along with IoT communication devices.

Masayoshi Yamamoto, Graduate School of Engineering, Nagoya University said, “This year, the Ministry of Economy, Trade, and Industry (METI) of Japan has set a target of 30% energy savings for new data centers by 2030 – less than 10 years from now. However, system performance must not only be energy efficient but also robust and stable as they have become a vital part of our social infrastructure.”

Along with mass-producing industry-leading SiC devices and feature-rich silicon devices, ROHM has developed GaN devices that achieve superior high-frequency operation in the medium voltage range, allowing us to provide power solutions for a wider variety of applications.

These new products utilize an original structure that raises the rated gate-source voltage from the conventional 6V to 8V.

As a result, degradation is prevented, even if overshoot voltages exceeding 6V occur during switching – contributing to improved design margin and higher reliability in power supply circuits.

The GNE10xxTB series is offered in a highly versatile package featuring superior heat dissipation and large current capability, facilitating handling during the mounting process.

ROHM has trademarked GaN devices that contribute to greater energy conservation and miniaturization under the name EcoGaN and is working to expand the lineup with devices that improve performance.

Going forward, ROHM will continue to develop control ICs that leverage analog power supply technology such as Nano Pulse ControlTM and modules that incorporate these ICs, along with power solutions that contribute to a sustainable society by maximizing the performance of GaN devices.

In response, ROHM has developed a new GaN device that provides a gate withstand voltage of 8V, the industry’s highest, providing a high degree of robustness and stability while achieving superior energy savings.

Beginning with these products, ROHM will continue to improve power supply efficiency in power sources by combining with proprietary Nano Pulse ControlTM analog power supply technology, creating a major technological trend that will help the semiconductor and telecommunications industries become carbon neutral by 2040.

Application Examples

  • 48V input buck converter circuits for data centers and base station
  • Boost converter circuits for the power amp block of base stations
  •  LiDAR drive circuits, wireless charging circuits for a portable device
  • Class D audio amps

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Aishwarya Saxena

A book geek, with creative mind, an electronics degree, and zealous for writing.Creativity is the one thing in her opinion which drove her to enter into editing field. Allured towards south Indian cuisine and culture, love to discover new cultures and their customs. Relishes in discovering new music genres.

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