SMA887 | Satellite sensor for airbag systems

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SMA8xy is a family of versatile 1-,2- and 3-channel high-g accelerometers for automotive passive safety systems.

The family member SMA887 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.

Benefits

Complies with AK-LV 27 specification

Robustness against microcuts

Developed for systems with requirements up to ASIL D

Target applications

Satellite sensor in airbag systems

Technical Features


Type	Single axis high-g acceleration sensor
Package	DFN (3 x 3 mm²)
Sensing axes	Z
Range	±120/240/480 g
Interface	PSI5 (PAS)
Data resolution	10 bit or 14 bit
Sensitivity	4/2/1 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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