
TM4™ HVI300 Series
Next Generation of
High-Voltage Inverters
The new TM4 HVI300 inverter series is designed for electric and hybrid vehicle applications. Delivering some of the highest peak and continuous current ratings, these inverters are compatible with TM4 MOTIVE™ and TM4 SUMO™ motors, as well as third-party motors.
Multiple Packaging Options

Best-in-class Efficiency and Power Density
- Innovative power module options for extended life under heavy-duty commercial vehicle duty cycles.
- Advanced motor control algorithm for optimal power module usage and efficiency
- Inverter design adapted for battery voltages up to 900V
- DC link capacitor and busbar cooling designed for high-continuous current
Flexibility and Security
- Inverter architecture compliant with latest functional safety and cybersecurity standards
- EMC architecture ensuring compliance with global automotive standards
- Rugged HV connectors allowing multiple cable cross-section options from 50 to 150mm2
- Modular architecture allowing for multiple peak current outputs in the same package

Hardware Features
- Uses a microcontroller from the Aurix TC3xx family
- Designed for a safety rating up to ASIL D
- SiC and Si models available
- Design able to accommodate power semiconductor coming from different suppliers
- New and improved EMC compliant with the latest standards
- Best-in-class power density up to 120kW/L
- 3-phase or dual 3-phase high-voltage inverter
- Multiple packaging options: stand-alone and integrated
- Rugged connector options qualified for automotive applications
- Ingress protection: IP67 / IP6K9K
Software Features
- ASPICE compliant processes, methods and toolchain ensuring highest output quality
- Functional Safety & Cybersecurity
- ISO 26262 compliance
- ISO/SAE 21434 & UNECE WP.29
- Reusable controls: Application controls which are platform agnostic
- Torque, speed, voltage control, and gearshift mode options
- Derating and protection alarms for temperature, voltage, current, and speed
- Flexible SW implementation, including AUTOSAR SW option
- CAN FD communication protocol (J1939, UDS, CCP)
- Blackbox data: Root-cause in-fields failures using data stored in the unit
Applications
Designed and optimized for hybrid or electrified light vehicle, commercial vehicle, and off-highway applications. Compatible with a variety of third-party motors as well as TM4 MOTIVE™ and TM4 SUMO™ motors.
Inverter | No. of Phases | Technology | Peak Current | Cont. Current | Max. Performance Voltage | Operating Temperature |
---|---|---|---|---|---|---|
HVI310-720-S3 | Single 3-phase | Si | 720 Arms | 325 Arms | 450 Vdc | -40°C to 85°C |
HVI350-750-S3 | Single 3-phase | SiC | 750 Arms | 450 Arms | 850 Vdc | -40°C to 85°C |
HVI350-860-S3 | Single 3-phase | SiC | 860 Arms | 450 Arms | 850 Vdc | -40°C to 85°C |
HVI350-1720-D3 | Dual 3-phase | SiC | 1720 Arms | 500* Arms | 900 Vdc | -40°C to 85°C |
Under conditions: 45°C, 10 or 12 LPM
* Under conditions: 65°C, 10 LPM
Optimized for Hybrid and Electrified Applications
