SMA781
Satellite sensor for airbag systems
Application & Technical Summary
The SMA781 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
vast field experience
gained from hundreds of millions sensors is the fundament of the SMA7xy
Technical Features
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Type
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Single axis high-g acceleration sensor
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Package
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LGA SiP
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Sensing axes
|
Z
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Range
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±120/240/480
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Interface
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PSI5 (PAS)
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Data resolution
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10 bit or 14 bit
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Sensitivity
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4/2/1 LSB/g
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Tolerance
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±7 %
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Supply voltage
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4.5 to 11 V
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Supply current
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< 6 mA (sink current 26 mA)
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Operating temperature
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-40°C to 125°C
|
-
LGA SiP (4 × 5 mm²)
