The major parameters in estimating the severity of a collision include the decelerations that occurred in all three dimensions at the moment of impact; for instance, the ERA Glonass specification for the Russian market requires that longitudinal accelerations up to +/-24g must be measurable with sufficient accuracy.  The AIS3624DQ brings all the benefits of ST’s stacked-chip technology to the automotive market.

STMicroelectronics solution is based on its 8” manufacturing of MEMS products and offers a more competitive solution than the others who produce on 6”.

Key features

• Selectable full-scale range: 6g / 12g / 24g
• 16-bit data output
• Two digital output lines (interrupt generators)
• 9 user-selectable Output Data Rates (ODR)
• Power down, low power and normal power modes
•  SPI and I2C digital output protocols
• Embedded self-test
• Up to 10,000g shock survivability
• Temperature range: -40°C … +105°

Housed in a QFN 24L (4x4x1.8 mm3) package, the AIS3624DQ is currently available as engineering samples. Volume production is scheduled for Q4 2014.