NXP Semiconductors Highly Integrated Battery Pressure Monitor Sensors
NXP Semiconductors Highly Integrated Battery Pressure Monitor Sensors (BPMS) are small QFN (4mm x 4mm x 1.98mm) devices with an integrated 8-bit CPU and NXP firmware. These sensors detect pressure variations, make decisions based on pre-set configurations, and transmit relevant data to the host system. The sensors' compact design and integrated capabilities offer efficient and seamless pressure monitoring solutions.
Features
- 40kPa to 250kPa pressure range
- Pressure dynamics
- Auto wake-up on pressure
- Warning functions (optional)
- Fixed pressure threshold breach
- Relative pressure threshold breach
- Pressure rate-of-change breach (ΔP/Δt)
- 70µA average consumption at 70ms sampling rate low power
- Internal timer to periodically measure and compensate pressure
- SPI, ready/interrupt, and power supply enable interfaces
- Ready/interrupts
- Power supply enable
- Last 12x pressure measurements saved FIFO memory
- AEC-Q100 Grade 1
- -40°C to +125°C temperature range
- Internal self-tests for transducer and signal chain diagnostics
- Pb-free, 24-pin "wettable flank" QFN 4mm x 4mm x 1.98mm package
- Pressure sensor protected by chemical-resistant gel
Applications
- Battery Management System (BMS)
- Energy storage/large battery storage systems
- State of health, battery pack drop detection
- Traction (EV) battery over-pressure warning
- Automotive gas meters
Block Diagram
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Published: 2024-05-20
| Updated: 2024-09-09