ST's 6-Axis Inertial Measurement Units Make Their Debut on the Road
STMicroelectronics Unveils High-Performance 6-Axis IMU for Advanced Automotive Applications
STMicroelectronics, a leading innovator in semiconductor solutions, has introduced the ASM330LHBG1, a cutting-edge 6-axis Inertial Measurement Unit (IMU) specifically designed for the demanding requirements of the automotive industry.
Precise Motion Sensing for Enhanced Safety and Functionality
The ASM330LHBG1 integrates a 3-axis accelerometer and a 3-axis gyroscope within a compact module, providing critical vehicle motion data for a variety of applications:
- Semi-Autonomous Driving: Supports advanced driver-assistance systems (ADAS) and Level 2 autonomous driving features by delivering accurate vehicle dynamics information.
- Vehicle Navigation: Enhances navigation systems, particularly in situations where GPS reception is limited.
- Advanced Driver Assistance Systems (ADAS): Provides real-time motion data to support various ADAS functionalities like lane departure warning, collision avoidance, and adaptive cruise control.
The ASM330LHBG1 can withstand extreme automotive environments.
Rugged Design for Harsh Automotive Environments
The ASM330LHBG1 is meticulously engineered to withstand the rigors of automotive environments:
- ASIL-B Compliance: When used with ST's certified software library, the ASM330LHBG1 meets the stringent Automotive Safety Integrity Level (ASIL) B requirements for functional safety in safety-critical automotive systems.
- AEC-Q100 Grade-1 Qualified: Complies with the AEC-Q100 Grade-1 standard, ensuring exceptional reliability for operation in harsh automotive conditions, including extreme temperatures.
- Extended Operating Temperature Range: Functions effectively at temperatures up to 125°C, making it suitable for deployment near the engine compartment or in areas exposed to direct sunlight.
On-Chip Processing Power for Enhanced Efficiency
The ASM330LHBG1 goes beyond basic sensing by incorporating powerful on-chip processing capabilities:
- Machine Learning Core (MLC): This embedded MLC facilitates on-module processing, enabling real-time recognition of user-defined motion patterns and generation of interrupt signals.
- Programmable Finite State Machines (FSMs): Allow for customized data processing routines within the IMU itself, improving efficiency and reducing host processor workload.
Dead Reckoning for Continuous Position Estimation
By combining accelerometer and gyroscope data, the ASM330LHBG1 can function as an inertial measurement unit (IMU). This allows for dead reckoning, a technique that estimates a vehicle's position based on its speed (accelerometer) and angular rate (gyroscope) when a fixed reference point (GPS) is unavailable.
ASM330LHBG1 functional block diagram.
MEMS Sensor Technology for Accurate and Reliable Measurements
At the heart of the ASM330LHBG1 lie high-performance microelectromechanical systems (MEMS) sensors, manufactured using ST's proprietary micromachining processes. These sensors offer:
- Wide Range Options: The accelerometer provides full-scale acceleration ranges of ±2g, ±4g, ±8g, and ±16g, while the gyroscope boasts a wide angular rate range of ±125 to ±4000 degrees per second (dps). This versatility caters to diverse automotive application requirements.
Compact and Easy Integration
The ASM330LHBG1 is housed in a space-saving 14-lead LGA package (2.5 x 3.0 x 0.83 mm), simplifying integration into space-constrained automotive electronic designs.
Sensors measure acceleration and angular rate.
Low-Power Operation and Flexible Data Acquisition
The ASM330LHBG1 prioritizes low-power operation:
- Selectable Power Modes: Designers can choose between high-performance and low-power modes, balancing power consumption with desired output data rates (ODR up to 1.6 kHz) and measurement resolution.
- Onboard Temperature Sensor: This sensor automatically compensates for temperature-induced variations, ensuring measurement accuracy across the entire operating temperature range.
Partner with BonChip Electronics for Your Automotive IMU Needs
BonChip Electronics is a trusted distributor of STMicroelectronics products, including the innovative ASM330LHBG1 6-axis IMU. We offer a comprehensive selection of automotive-grade electronic components and exceptional technical support to assist you in selecting the ideal solution for your next automotive application.
Contact BonChip Electronics today to learn more about the ASM330LHBG1 and how it can elevate the performance, safety, and reliability of your automotive navigation and ADAS systems.
