The RGWxx65C series utilizes ROHM's low-loss SiC Schottky barrier diodes in the IGBT feedback block as a free-running diode with virtually no recovery energy, resulting in minimal diode switching loss. Furthermore, since the recovery current does not need to be handled by the IGBT in turn-on mode, the IGBT's turn-on loss is significantly reduced. These combined effects result in losses up to 67% lower than conventional IGBTs and 24% lower than super-connected MOSFETs (SJ MOSFETs) when used in vehicle chargers. This provides excellent cost performance while contributing to lower power consumption in industrial and automotive applications.
In recent years, global efforts to reduce environmental impact and achieve a carbon-neutral and decarbonized society have driven spectacular growth in electric vehicles (xEVs). Simultaneously, the diversification of power semiconductors used in various vehicle inverter and converter circuits is underway, necessary for configuring more efficient systems. This diversification is accompanied by technological innovation in both ultra-low-loss SiC power devices (e.g., SiC MOSFETs and SiC SBDs) and conventional silicon power devices (e.g., IGBTs and super-connected MOSFETs).
In order to offer effective power solutions for a wide range of applications, ROHM focuses not only on developing products and technologies for industry-leading SiC power devices, but also for silicon products and integrated controller circuits.
Availability: March 2021 (samples), December 2021 (in mass production)
Application examples
Car chargers (on-board chargers)
DC/DC converters for vehicles
Solar power inverters (power conditioners)
Uninterruptible power supply (UPS) systems
Hybrid IGBT Product Range [RGWxx65C Series]
In addition to these novel hybrid IGBTs, we offer products that use silicon FRDs as a free-flowing diode, as well as products without a free-flowing diode.
Design support materials
On the ROHM website you will also find a wide range of design data, including simulation models (SPICE) and application notes on drive circuit design, necessary for integration and evaluation that help a rapid introduction to the market.
