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SMA782 | Satellite sensor for airbag systems

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Reliable operation due to broad operating temperature range

The SMA782 is a dual-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

Triggerable offset adjustment

RoHS compliant

Developed for systems with requirements up to ASIL D

Target applications

Satellite sensor in airbag systems

Technical Features

Type
Dual axis high-g acceleration sensor
Package
LGA SiP
Sensing axes
X, Y
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
  • LGA SiP (4 × 5 mm²)
    LGA SiP (4 × 5 mm²)