IN Brief:
- ROHM has published three reference designs spanning 5 kW, 10 kW, and 100 kW three-phase inverter stages around its latest SiC modules.
- The designs map HSDIP20, DOT-247, and TRCDRIVE pack modules to motor drive, industrial power conversion, and traction inverter use cases.
- By packaging schematics, layouts, and BOMs together, ROHM is trying to shorten the evaluation path that often slows SiC adoption.
ROHM is tackling one of the less glamorous barriers to SiC adoption: the engineering time wrapped around the module rather than the module itself. Its new REF68005, REF68006, and REF68004 reference designs package three-phase inverter drive circuitry around the company’s HSDIP20, DOT-247, and TRCDRIVE pack SiC modules, giving design teams reusable board-level starting points instead of a blank sheet.
The three designs cover distinct power bands and applications. REF68005 targets roughly 5 kW systems such as AC servo drives, motor drives, and e-compressors using a 6-in-1 HSDIP20 module; REF68006 moves to around 10 kW for HVAC, PV, energy storage, pumps, and xEV chargers using three 2-in-1 DOT-247 devices; REF68004 steps up to roughly 100 kW for traction inverters using three TRCDRIVE pack modules.
ROHM says the wider platform supports output levels up to the 300 kW class, which places the release squarely in the space where SiC efficiency gains are attractive but peripheral circuitry, layout discipline, and thermal management still slow down design cycles. Each reference package includes the practical collateral that makes evaluation faster — quick-start guide, user guide, BOM, schematic, and layout — which gives the launch more weight than a simple module refresh.
The choice of packages also points to how ROHM is segmenting its SiC portfolio. DOT-247 is aimed at industrial converters and supports multiple circuit topologies including multilevel designs, HSDIP20 was developed for higher-density onboard-charger and converter stages, while TRCDRIVE pack targets traction inverters with a packaging approach built around higher power density and thermal performance.
Taken together, the release is a reminder that SiC adoption is now as much a design-flow story as a device story. ROHM has published the reference-design data on its website, giving engineers a faster route into evaluation at a time when power-conversion teams are under pressure to move from discrete experimentation to repeatable inverter platforms.
