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Bosch Semiconductors

SMA694

Satellite sensor for airbag systems

Application & Technical Summary

SMA6xy

The SMA694 is a single-channel, high-g accelerometer with PSI5 interface. The sensor is intended for airbag systems, providing front or side crash information.

Power and digital communication are handled via the same 2-wire connection.

Product benefits

  • Complies with AK-LV 27 specification
  • Robustness against microcuts
  • Triggerable offset adjustment
  • RoHS compliant
  • Developed for systems with requirements up to ASIL D

Target application

  • Satellite sensor in airbag systems

reliable operation

due to broad operating temperature range

Technical Features

Type
Single axis high-g acceleration sensor
Package
SOIC8n
Sensing axes
Z
Range
±480 g
Interface
PSI5 (PAS)
Data resolution
10-bit
Sensitivity
1 LSB/g
Tolerance
±7%
Supply voltage
4.5 to 11 V
Supply current
< 6 mA (sink current 26 mA)
Operating temperature
-40°C to 125°C

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