SMA665
Central sensor for airbag control units
Application & Technical Summary
The SMA665 is a dual channel, high-g accelerometer with bi-directional SPI interface. The sensor is intended for airbag systems, providing front or side crash information or for verifying satellite sensor readings.
Product benefits
- Triggerable offset adjustment
- RoHS compliant
- Developed for systems with requirements up to ASIL D
Target application
- Central sensor in airbag ECUs
reliable operation
due to broad operating temperature range
Technical Features
|
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, Z
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Range
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±120 g
|
|
Interface
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SPI, supporting Bosch SPI or open SPI protocol
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|
Data resolution
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12-bit
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Sensitivity
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16 LSB/g
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|
Tolerance
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±7%
|
|
Supply voltage
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3.3 or 6.7 V
|
|
Supply current
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<6 mA
|
|
Operating temperature
|
-40°C to 125°C
|
-
Lead-free SOIC8n package: 6.0 mm × 4.9 mm × 1.75 mm (complete sensor)
