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ROHM Launches Configurable Automotive Power Supply Solution for ADAS and Domain Controller SoCs
Article Details
ROHM has introduced a configurable automotive power supply solution combining the BD968xx-C Series PMICs with the BD96340MFF-C DrMOS device to support next-generation automotive SoCs used in ADAS, DMS, sensing cameras, and integrated cockpit systems. The solution is designed to simplify power architecture development for modern automotive domain controller platforms while supporting low-voltage, high-current operation requirements.
As automotive electronics continue shifting toward centralized domain architectures, SoCs are becoming more power intensive and increasingly complex. This creates new challenges for ECU designers, including advanced power sequencing requirements, scalability across different SoC platforms, and improved efficiency in limited thermal environments. ROHM addresses these challenges through a configurable approach that improves design reuse and platform flexibility.
Configurable Automotive PMIC Platform
The new ROHM solution is built around configurable PMIC and DrMOS combinations that can be adjusted according to SoC performance requirements. By selecting different PMIC configurations and pairing them with the BD96340MFF-C DrMOS, developers can support low-end, mid-range, and high-performance automotive processors within a common power design framework.
This architecture helps reduce redesign effort during vehicle platform updates or SoC migration between generations. Instead of creating fully customized power trees for each processor family, developers can scale the solution according to current demand while maintaining higher levels of hardware reuse.
Key Features
- Configurable PMIC and DrMOS architecture for automotive SoCs
- Supports low-voltage, high-current processor power requirements
- Designed for ADAS, DMS, sensing cameras, and domain controllers
- Scalable solution for low-end to high-performance SoCs
- Flexible power sequencing support for complex automotive systems
- 2.7 V to 5.5 V PMIC input voltage range
- Wettable flank QFN packaging for automotive inspection compatibility
- DrMOS available in compact flip-chip QFN package
- AEC-Q100 qualified devices for automotive reliability
- Supports platform reuse and reduced development workload
Technical Configuration
| Device | Description |
|---|---|
| BD96803Qxx-C | Configurable PMIC optimized for standalone operation with low-end automotive SoCs |
| BD96811Fxx-C | PMIC designed for compact low-power automotive processing systems |
| BD96805Qxx-C | PMIC supporting higher-performance automotive SoC platforms |
| BD96806Qxx-C | Advanced PMIC designed for scalable domain controller power architectures |
| BD96340MFF-C | Automotive DrMOS supporting low-voltage, high-current processor rails |
| Input Voltage Range | 2.7 V to 5.5 V |
| Qualification | AEC-Q100 Automotive Qualified |
| PMIC Package | Wettable Flank QFN |
| DrMOS Package | Flip-Chip QFN |
Automotive Application Examples
| High-Performance ADAS and Cockpit Systems | Surround View and Parking Assist Systems |
|---|---|
|
Use Scenario: Centralized automotive compute platforms requiring multiple power rails and advanced sequencing control. IC Role: PMIC and DrMOS devices provide scalable low-voltage, high-current power delivery for high-performance SoCs. Use Value: Helps simplify power tree development while supporting platform reuse across domain controller architectures. |
Use Scenario: Mid-range automotive vision processing systems used for parking assistance and multi-camera environments. IC Role: Provides regulated and configurable power management for integrated automotive processors and imaging systems. Use Value: Supports efficient ECU integration with reduced redesign effort between product generations. |
| Sensing Cameras and Sensor Nodes | Body Control and Distributed Automotive Electronics |
|
Use Scenario: Low-power automotive sensing platforms and camera-based monitoring systems. IC Role: Supplies stable power rails for image sensors, embedded processors, and edge processing electronics. Use Value: Enables compact and scalable power architectures for distributed vehicle sensing systems. |
Use Scenario: Automotive body electronics and sensor control ECUs operating in demanding environments. IC Role: Delivers configurable voltage regulation and sequencing support for integrated automotive modules. Use Value: Improves long-term platform scalability while maintaining automotive-grade reliability. |
Advantages for Automotive Domain Architectures
Modern automotive electronic systems increasingly rely on centralized domain controllers capable of managing ADAS, cockpit integration, imaging, and sensor processing functions from shared compute platforms. This transition significantly increases SoC power density and creates more demanding power delivery requirements.
ROHM's configurable architecture helps reduce development complexity by allowing engineers to scale the power solution according to processor performance levels instead of redesigning separate power subsystems for each ECU generation. This approach supports faster platform migration and improves verification efficiency during vehicle development cycles.
The inclusion of DrMOS devices for high-current rails also improves power efficiency and thermal behavior in compact automotive electronic modules. Combined with automotive-qualified packaging and reliability compliance, the solution is positioned for long lifecycle in-vehicle applications.
Availability and Supply
The BD968xx-C Series PMICs and BD96340MFF-C DrMOS devices are already in mass production and available for automotive development programs requiring scalable power management architectures.
These ROHM automotive power management devices are available at Aetrix Electronics and are suitable for long lifecycle automotive electronics, ADAS platforms, sensing systems, and domain controller applications requiring stable component supply and repeatable production support.
