The AIS3624DQ from STMicroelectronics is a 3-axis accelerometer with digital output, and according to ST is the first to provide a full-scale range of +/-24g (acceleration of gravity) while meeting the automotive industry’s AEC-Q100 reliability stress tests.
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.
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