SMA720
Central sensor for airbag control units
Application & Technical Summary
The SMA720 is a dual channel accelerometer with bi-directional SPI interface. The sensor is intended for airbag systems, providing roll-over information.
Product benefits
- Triggerable offset adjustment
- RoHS compliant
- Developed for systems with requirements up to ASIL D
Target application
- Central sensor in airbag ECUs
Vast field experience
gained from hundreds of millions sensors is the fundament of the SMA7xy
Technical Features
|
Type
|
Dual axis high-g acceleration sensor
|
|
Package
|
SOIC8n
|
|
Sensing axes
|
X, Z
|
|
Range
|
±128 g (X)
±32 g (Z) |
|
Interface
|
SafeSPI
|
|
Data resolution
|
14 bit
|
|
Sensitivity
|
64 LSB/g
|
|
Tolerance
|
±5 % (ax),
±7 % (az), |
|
Supply voltage
|
3.3, 5 or 6.7 V
|
|
Supply current
|
< 5 mA
|
|
Operating temperature
|
-40°C to 125°C
|
-
Lead-free SOIC8n package: 6.0 mm × 4.9 mm × 1.75 mm (complete sensor)
