Rohm introduces 2-in-1 SiC modules
Rohm has developed four models as part of the TRCDRIVE pack series with 2-in-1 SiC moulded modules. Based on 4th generation SiC MOSFETs, two are 750V-rated and two 1,200V-rated.
Rohm's SiC moulded type modules are developed specifically for EV traction inverter drive applications. TRCDRIVE pack supports up to 300kW and reduces size by using a structure that maximises heat dissipation area. As a result, the models have a power density 1.5 times higher than that of general SiC moulded modules while greatly contributing to the miniaturisation of inverters for xEVs, according to the company.
The modules are also equipped with control signal terminals using press fit pins enabling easy connection by simply pushing the gate driver board from the top, reducing installation time considerably. In addition, low inductance (5.7nH) is achieved by maximising the current path and using a two-layer bus-bar structure for the main wiring, contributing to lower losses during switching.
TRCDRIVE pack is scheduled to be launched by March 2025 with a lineup of 12 models in different package sizes (Small / Large) and mounting patterns (TIM: heat dissipation sheet / Ag sinter). In addition, Rohm is developing a 6-in-1 product with built-in heat sink that is expected to facilitate rapid traction inverter design and model rollout tailored to variety of design specifications.
