BMA400 datasheet(3/121 Pages) BOSCH

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Bosch Sensortec | BMA400 Data sheet

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Modifications reserved | Data subject to change without notice

Document number: BST-BMA400-DS000-13 Revision_2.2_012025

Index of Contents

BMA400 – Basic Description.................................................................................................................2

1. Specification ......................................................................................................................................9

2. Absolute maximum ratings ............................................................................................................11

3. Quick Start Guide ........................................................................................................................... 12

First application setup examples algorithms: .................................................................... 12

4. Functional Description .................................................................................................................. 16

Block Diagram .........................................................................................................................16

Supply Voltage and Power Management ................................................................................16

Power Modes – performance modes ......................................................................................17

Auto wake-up..................................................................................................................... 20

Auto low-power mode........................................................................................................ 23

Sensor Data.............................................................................................................................25

Acceleration Data .............................................................................................................. 25

Filter Configuration ............................................................................................................ 25

G-range selection .............................................................................................................. 26

Data Ready Interrupt ......................................................................................................... 26

Temperature Sensor .......................................................................................................... 26

Sensor Time....................................................................................................................... 27

FIFO.........................................................................................................................................28

FIFO description ................................................................................................................ 28

FIFO input data.................................................................................................................. 28

FIFO read out .................................................................................................................... 28

FIFO overflow behavior ..................................................................................................... 29

Frames............................................................................................................................... 29

Under-read......................................................................................................................... 31

Partial frame read .............................................................................................................. 31

Over-read........................................................................................................................... 32

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