NBP8-9x: Highly Integrated Battery Pressure Monitor Sensor

Overview

PREPRODUCTION

The NBP8 and NBP9 is a fully integrated battery pressure monitor sensor family in the NXP pressure sensor portfolio that provides a small footprint in a 4 x 4 mm package, low power consumption, PWM, SPI, ready/interrupt and power supply enable.

The NBPx family consists of small QFN (4 mm x 4 mm x 1.98 mm), fully integrated battery pressure monitoring sensors (BPMS). The NBPx BPMS solution integrates an 8-bit central processing unit (CPU) and NXP-provided firmware to create the ready-to-use pressure sensor. The battery pressure monitoring sensors have a built in MCU and are capable of sensing the pressure change, making a configuration-based decision and acting on this decision while providing this information to the host system.

This page contains information on a preproduction product. Specifications and information herein are subject to change without notice.

For additional information and sample availability, contact your local sales office.

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Features

Pressure Range

40 kPa ─ 250 kPa

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)

Low Power

70 uA average consumption @ 70 ms sampling rate

Internal Timer

To periodically measure & compensate pressure

Interfaces

SPI
Ready/interrupt
Power supply enable

Interrupts

Ready/interrupts
Power supply enable

FIFO Memory

Last 12 pressure measurements saved

Qualification

AEC-Q100, Rev. H Grade 1
Temperature range: -40 °C to 125 °C

Diagnostics

Internal self-tests for transducer and signal chain

Package

Pb-free 24-pin “wettable flank” QFN 4 x 4 x 1.98 mm package
Pressure sensor protected by chemical-resistant gel

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Features

Pressure Range

40 kPa ─ 250 kPa

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)