SMI330: ultra-low power, maximum versatility

• The third-generation SMI330 MEMS inertial sensor combines ultra-low power consumption with an extended operating temperature range, delivering outstanding sensing performance even in demanding automotive environments and enabling always-on, and power-sensitive functions.
• With its significantly reduced package size, the SMI330 sets a new benchmark for compact all-in-one inertial sensor, enabling more space-efficient system layouts.
• Building on Bosch’s MEMS expertise, the SMI330 delivers precise and reliable inertial sensing, with integrated on-chip intelligence, enabling versatile and robust automotive applications.

The SMI330 goes well beyond a traditional MEMS inertial sensor. It combines precise acceleration and angular rate measurement with on-chip motion-triggered features and ultra-low power consumption. It thus provides the versatility required to support a broad range of advanced automotive functions that enhance driving comfort, including navigation, telematics, infotainment, always-on systems and vehicle security. With configurable power modes and a variety of hardware settings, the SMI330 adapts effortlessly to all power-sensitive environments. From smart mobility solutions to optimized embedded systems, the SMI330 is the all-in-one sensor for intelligent, ultra-efficient performance.

With its integrated motion detection algorithms and flexible operating modes, the SMI330 supports a broad range of functions that enhance driving and provide added value to the end user. During normal vehicle operation, its precise six-axis motion sensing enables stable navigation and positioning, particularly when satellite signals are weak or temporarily unavailable. By bridging these short signal gaps, the MEMS sensor ensures that navigation and telematics functions continue smoothly without noticeable interruptions for the driver. The sensor also enables orientation-dependent features such as adaptive cornering lights for motorcycles, which allows systems to adjust lighting in curves according to the motorcycle’s tilt. In addition, the SMI330 can detect sudden impacts or unusual motion patterns during driving, allowing for features such as incident documentation and dashcam activation.

In stationary conditions, the SMI330 complements these capabilities with intelligent any-motion and no-motion detection. These on-chip functions allow the sensor to remain in a low-power mode when the vehicle is parked and switch to its standard operating mode only when relevant motion occurs. This behavior forms the basis for features like car door impact detection, and anti-theft mechanisms. The sensor can instantly wake up the whole system in case of a sudden incident and trigger events like alarms or recordings for accident documentation purposes.