PSI5 Automotive Safety Digital Accelerometer
Design Files
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FXPS7140X Automotive Safety Pressure Sensor DSI3 and PSI5
FXPS71407ST1 and FXPS7140P7ST1 are the recommend devices for new designs as the FXPS71407T1 and FXPS7140P7T1 are discontinued.
The FXPS7140X family is the latest generation of airbag crash sensors from NXP. The devices are designed using NXP proprietary MEMS sensing technology coupled with a signal conditioning digital integrated circuit (IC) in a QFN 4 x 4 x 1.98 mm package.
The architecture benefits from redundant pressure transducers as an expanded quality measure. The sensor delivers highly accurate pressure range of 40 kPa to 140 kPa through user configurable DSI3 and PSI5 interfaces. The embedded DSP provides fully programmable digital low pass filtering.
The FXPS7140X family is fully AEC-Q100 qualified up to 125 °C operating temperature and is compliant with the AK LV 29 requirements. The package has wettable flanks for solder join inspection. FXPS7140X products have been developed following ISO26262 2018 edition and can be used in up to ASIL D system.
For additional information and sample availability, contact support or your local sales representative.
Product Details
Block Diagram
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Features
Pressure Transducer and DSP
- 40 kPa to 140 kPa absolute pressure range
- Redundant pressure transducers
- Capacitance to voltage converter with anti-aliasing filter
- Sigma delta ADC plus sinc filter
- Selectable 370 Hz, 2-pole or 400 Hz, 3-pole and 4-pole 800 Hz, 1000 Hz low-pass filter for absolute pressure
- 0.16 Hz, 1-pole LPF for P0 value
- 10-bit ΔP/P0 output
Automotive Qualified
- AEC-Q100, temperature range from –40 ℃ to +125 ℃
- ISO26262 revision 2018 certified
- Robust design: EMC compliant, QFN package
Communication Interface
- PSI5 Version 2.1 Compatible
- DSI3 compatible
Package
- Inspectable solder joints / wettable flanks
Diagnostics
- Self-test diagnostic
- Internal self-tests for transducer and signal chain
Related products
DSI3/SPI Automotive Safety Digital Accelerometer
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Documentation
Quick reference to our documentation types.
3 documents
Compact List
Application Note (1)
Data Sheet (2)
3 documents
Compact List
Application Note (1)
Data Sheet (2)
Design Resources
Hardware
Quick reference to our
board types.
2 hardware offerings
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Evaluation and Development BoardsEvaluation Tool for Automotive Sensors
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Evaluation and Development BoardsSocket Evaluation Board for FXLS9 and FXPS7 Sensors Families
