SMA757
Satellite sensor for airbag systems
Application & Technical Summary
The SMA757 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.
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
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Type
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Dual axis high-g acceleration sensor
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Package
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SOIC8n
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Sensing axes
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X, Y
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Range
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±240/480 g
|
|
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
|
-40°C to 125°C
|
-
Lead-free SOIC8n package: 6.0 mm × 4.9 mm × 1.75 mm (complete sensor)
