STMicroelectronics said on the 10th it has released the automotive-qualified inertial measurement unit (IMU) ASM330LHHG1, which operates from -40°C to 125°C. It is rated to broaden its operating range by being installable in various locations inside vehicles, including extreme temperature environments.
Recently, regardless of passenger cars, commercial vehicles, or agricultural vehicles, demand has been rising for high-precision GNSS positioning technology for route guidance, vehicle tracking, and driver assistance functions. To reliably provide fallback functionality even when satellite signals are lost or disrupted, high-quality dead reckoning technology is essential.
ASM330LHHG1 ensures consistent timing between GNSS signal updates through six-channel synchronized outputs from a 3-axis accelerometer and a 3-axis gyroscope. Both sensors deliver low-noise performance using the latest MEMS processes and minimize measurement errors due to temperature changes with built-in temperature compensation.
The accelerometer supports a ±16g full-scale range, and the gyroscope features an extended range of ±125 dps to ±4000 dps and low bias drift characteristics. It can be used across a wide range of non-safety applications, including V2X (vehicle-to-everything), telematics, electronic toll collection (eTolling), theft prevention, shock detection, and accident reconstruction.
In terms of power efficiency, it includes dual operating modes that support both high performance and low power, enabling flexible responses to vehicle power budgets. It simplifies system integration with a standard digital interface, and the built-in 3KB FIFO reduces host processor load and power consumption.
The product has obtained AEC-Q100 certification and is in mass production in a compact 2.5 mm × 3 mm LGA-14L package. Samples and pricing inquiries are available through ST's Korea office.