Accelerating development towards the mass production of GaN devices for automotive applications.
ROHM Semiconductor announced the GNP2070TD-Z 650V GaN HEMTs in the TO-Leadless (TOLL) package. The TOLL package has a compact design with efficient heat dissipation, high current capacity, and reliable switching performance. It is being adopted in applications requiring high power handling, including industrial equipment and automotive systems. For this launch, package manufacturing has been outsourced to ATX Semiconductor (Weihai) Co., Ltd. (ATX), an OSAT (outsourced semiconductor assembly and test) provider.
Improving the efficiency of motors and power supplies, which account for most of the world’s electricity consumption, has become a significant challenge to achieving a decarbonized society. As power devices are key to improve efficiency, the adoption of new materials such as SiC (silicon carbide) and GaN is expected to further enhance the efficiency of power supplies.
ROHM began mass production of its 1st generation 650V GaN HEMTs in April 2023, followed by the release of power stage ICs that combine a gate driver and 650V GaN HEMT in a single package. This time, ROHM has developed the product incorporating 2nd generation elements in a TOLL package and added it to the existing DFN8080 package to strengthen ROHM’s 650V GaN HEMT package lineup – meeting the market demand for even smaller and more efficient high-power applications.
The new products integrate 2nd generation GaN-on-Si chips in a TOLL package, achieving industry-leading values in the device metric that correlates ON-resistance and output charge (RDS(on) × Qoss). This contributes to further miniaturization and energy efficiency in power systems that require high voltage resistance and high-speed switching.
To achieve mass production, ROHM leveraged proprietary technology and expertise in device design, cultivated through a vertically integrated production system, to carry out design and planning. Under the collaboration announced in December 2024, front-end processes are carried out by Taiwan Semiconductor Manufacturing Company Ltd (TSMC); back-end processes are handled by ATX. In addition, ROHM plans to partner with ATX to produce automotive-grade GaN devices.
In response to the increasing adoption of GaN devices in the automotive sector, which is expected to accelerate in 2026, ROHM plans to ensure the rapid introduction of automotive-grade GaN devices in the automotive sector, which is expected to accelerate in 2026, ROHM plans to ensure the rapid introduction of automotive-grade GaN devices by strengthening these partnerships, in addition to advancing its own development efforts.
Application examples
- Power supplies for servers, communication base stations, industrial equipment and more.
- AC adapters (USB chargers), PV inverters, ESS (Energy Storage System)
- Wide range of power supply systems with 500W to 1kW output power
EcoGaN brand
Refers to ROHM’s new lineup of GaN devices that contribute to energy conservation and miniaturization by maximizing GaN characteristics to achieve lower application power consumption, smaller peripheral components, and simpler designs requiring fewer parts.
For more information, visit rohm.com.
