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Bosch Semiconductors

SMI700

Combined inertial sensor for vehicle dynamics control

Application & Technical Summary

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The SMI700 is a tri-axis (axy, Ωz) combined inertial sensor specifically designed for ESP® and premium vehicle dynamics control functions.

Due to the combination of three chips in one housing, the SMI700 is able to measure data on the vehicle’s rotation around its vertical axis (gyroscope, gyro). In addition, it delivers data on the lateral and longitudinal acceleration to determine the dynamic state of the vehicle and to check the plausibility of the rotation rate signal.

Product benefits

  • Excellent vibration resistance and offset stability over temperature and lifetime
  • Wide range of customized signal monitoring options
  • Various communication interfaces available
  • RoHS compliant

Target applications:

  • Roll-stability control
  • Active damping systems
  • Rollover sensing

safe and economical

integrated sensor solution, applicable in systems up to ASIL D requirements

Technical Features

Type
Combined inertial sensor
Package
BGA64
Sensing axes
Z (Ω),
X, Y (a)
Range
±300 °/s (Ω)
±5 g (a)
Interface
SPI, PSI5, CAN
Data resolution
16-bit (SPI)
Sensitivity
100 LSB/°/s (Ω),
5,000 LSB/g (a)
Tolerance
±3% (Ω)
±3% (a)
Supply voltage
3.3 or 5 V (digital)
Supply current
< 29 mA (SPI, PSI5)
Operating temperature
-40 to 125°C

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