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Bosch Semiconductors

SMI860

Combined inertial sensor for vehicle dynamics control

Application & Technical Summary

SMI860

SMI860 is especially designed to support safety and ADAS functions with ASIL rating: ESP®, roll-over sensing, adaptive cruise control, hill-hold control, and short-term localization for ADAS functions. The SMI860 is a five axis sensor measuring yaw rate (Ωz), roll rate (Ωx) and acceleration (axyz).

It provides all relevant inertial signals in just one sensor. Subsequent system algorithms will use these sensor signals to compute the dynamical driving state of a vehicle or its position.

Product benefits

  • Excellent vibration robustness and offset stability
  • Developed for systems with requirements up to ASIL D

Target applications:

  • ESP®
  • Roll-over sensing
  • Adaptive cruise control
  • Short-term localization
  • and other safety and ADAS functions

reliable operation

due to excellent vibration resistance

Technical Features

Type
Combined inertial sensor
Package
BGA64
Sensing axes
X, Z (Ω),
X, Y, Z (a)
Range
±300 °/s (Ω)
±6 g (a)
Interface
SafeSPI
Data resolution
16-bit (SPI)
Sensitivity
100 LSB/°/s (Ω),
5,000 LSB/g (a)
Tolerance
±3% (Ω)
±3% (a)
Supply voltage
3.3 V, 5 V or 6.7 V
Supply current
< 28 mA
Operating temperature
-40 to 125°C

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