AIS3624DQTR datasheet, PDF - EEWORLD Datasheet

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AIS3624DQTR: DescriptionAccelerometers Motion MEMS; CategoryAnalog mixed-signal IC The signal circuit; File Size1MB，41 Pages; ManufacturerSTMicroelectronics; Websitehttp://www.st.com/

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AIS3624DQTR Overview

Accelerometers Motion MEMS

AIS3624DQTR Parametric

Parameter Name	Attribute value
Brand Name	STMicroelectronics
Maker	STMicroelectronics
package instruction	HQCCN,
Reach Compliance Code	compliant
ECCN code	EAR99
Factory Lead Time	24 weeks
Samacsys Description	STMicroelectronics AIS3624DQTR 3-Axis Accelerometer Ic, 2.4 → 3.6 V 24-Pin QFN
Analog Integrated Circuits - Other Types	ANALOG CIRCUIT
JESD-30 code	S-XQCC-N24
length	4 mm
Number of functions	1
Number of terminals	24
Maximum operating temperature	105 °C
Minimum operating temperature	-40 °C
Package body material	UNSPECIFIED
encapsulated code	HQCCN
Package shape	SQUARE
Package form	CHIP CARRIER, HEAT SINK/SLUG
Peak Reflow Temperature (Celsius)	NOT SPECIFIED
Maximum seat height	1.8 mm
Maximum supply voltage (Vsup)	3.6 V
Minimum supply voltage (Vsup)	2.4 V
Nominal supply voltage (Vsup)	3.3 V
surface mount	YES
Temperature level	INDUSTRIAL
Terminal form	NO LEAD
Terminal pitch	0.5 mm
Terminal location	QUAD
Maximum time at peak reflow temperature	NOT SPECIFIED
width	4 mm
Base Number Matches	1

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AIS3624DQ

High-performance motion sensor for automotive applications:

ultra-low-power digital output 3-axis accelerometer

Datasheet

production data

Description

The AIS3624DQ is an ultra-low-power high-

performance three-axis accelerometer with a

digital serial interface SPI standard output, an I

compatible interface is also available.

The device features ultra-low-power operational

modes that allow advanced power saving and

smart sleep-to-wake functions.

The AIS3624DQ has dynamically user selectable

full scales of ±6g/±12g/±24g and it is capable of

measuring accelerations with output data rates

from 0.5 Hz to 1 kHz.

The self-test capability allows the user to check

the functioning of the sensor in the final

application.

The device may be configured to generate an

interrupt signal by inertial wakeup/free-fall events

as well as by the position of the device itself.

Thresholds and timing of interrupt generators are

programmable by the end user on the fly.

The AIS3624DQ is available in small, quad flat

no-lead package (QFN) with the reduced 4x4 mm

footprint required by many applications and it is

guaranteed to operate over an extended

temperature range from -40 °C to +105 °C.

This product may be used in a variety of

automotive non-safety applications such as:



Motion-activated functions



Telematic boxes



Impact recognition and logging systems



Vibration monitoring and compensation

Table 1. Device summary

Order codes

AIS3624DQ

AIS3624DQTR

Temperature range [C]

-40 to +105

Package

QFN 4x4x1.8 24L

Packaging

Tray

Tape and reel

QFN 24 (4x4x1.8 mm3)

Features



Wide supply voltage range: 2.4 V to 3.6 V



1.8 V low voltage compatible IOs



Ultra-low-power mode consumption

down to 10

μA

 6g/±12g/24g

dynamically selectable full

scale



SPI/I

C digital output interface



16-bit data output, 12-bit resolution



2 independent programmable interrupt

generators



System sleep-to-wake function



Embedded self-test



Extended temperature range -40°C to 105°C



10000

high shock survivability



ECOPACK

, RoHS and “Green” compliant

(see

Section 8)



AEC-Q100 qualification

December 2015

This is information on a product in full production.

DocID027117 Rev 2

1/41

www.st.com

Contents

AIS3624DQ

Contents

Block diagram and pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

1.1

1.2

Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Mechanical and electrical specifications . . . . . . . . . . . . . . . . . . . . . . . 10

2.1

2.2

2.3

Mechanical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Communication interface characteristics . . . . . . . . . . . . . . . . . . . . . . . . . 12

2.3.1

2.3.2

SPI - serial peripheral interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

C - inter-IC control interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2.4

2.5

Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

2.5.1

2.5.2

2.5.3

2.5.4

Sensitivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Zero-g level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Self-test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Sleep-to-wake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.1

3.2

3.3

Sensing element . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

IC interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Factory calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Application hints . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

4.1

Soldering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Digital interfaces . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

5.1

5.2

I2C serial interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

5.1.1

5.2.1

5.2.2

5.2.3

I2C operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

SPI read . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

SPI write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

SPI read in 3-wire mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

SPI bus interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

2/41

DocID027117 Rev 2

AIS3624DQ

Contents

7.1

7.2

7.3

7.4

7.5

7.6

7.7

7.8

7.9

7.10

7.11

7.12

7.13

7.14

7.15

7.16

7.17

7.18

7.19

7.20

WHO_AM_I (0Fh) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

CTRL_REG1 (20h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

CTRL_REG2 (21h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

CTRL_REG3 [interrupt CTRL register] (22h) . . . . . . . . . . . . . . . . . . . . . . 27

CTRL_REG4 (23h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

CTRL_REG5 (24h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

HP_FILTER_RESET (25h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

REFERENCE (26h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

STATUS_REG (27h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

OUT_X_L (28h), OUT_X_H (29) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

OUT_Y_L (2Ah), OUT_Y_H (2Bh) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

OUT_Z_L (2Ch), OUT_Z_H (2Dh) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

INT1_CFG (30h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

INT1_SRC (31h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

INT1_THS (32h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

INT1_DURATION (33h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

INT2_CFG (34h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

INT2_SRC (35h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

INT2_THS (36h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

INT2_DURATION (37h) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

8.1

QFN 24L package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Soldering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

9.1

9.2

9.3

9.4

9.5

General guidelines for soldering surface-mount MEMS sensors . . . . . . . 37

PCB design guidelines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

PCB design rules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Stencil design and solder paste application . . . . . . . . . . . . . . . . . . . . . . . 38

Process considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

DocID027117 Rev 2

3/41

AIS3624DQ

List of tables

Table 1.

Table 2.

Table 3.

Table 4.

Table 5.

Table 6.

Table 7.

Table 8.

Table 9.

Table 10.

Table 11.

Table 12.

Table 13.

Table 14.

Table 15.

Table 16.

Table 17.

Table 18.

Table 19.

Table 20.

Table 21.

Table 22.

Table 23.

Table 24.

Table 25.

Table 26.

Table 27.

Table 28.

Table 29.

Table 30.

Table 31.

Table 32.

Table 33.

Table 34.

Table 35.

Table 36.

Table 37.

Table 38.

Table 39.

Table 40.

Table 41.

Table 42.

Table 43.

Table 44.

Table 45.

Table 46.

Table 47.

Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Mechanical characteristics @ Vdd = 3.3 V, T = -40 °C to +105 °C

unless otherwise noted . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Electrical characteristics @ Vdd = 3.3 V, T = -40 °C to +105 °C unless otherwise noted . 11

SPI slave timing values. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

C slave timing values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Serial interface pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

C terminology . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

SAD+Read/Write patterns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Transfer when master is writing one byte to slave . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Transfer when master is writing multiple bytes to slave:. . . . . . . . . . . . . . . . . . . . . . . . . . . 19

Transfer when master is receiving (reading) one byte of data from slave: . . . . . . . . . . . . . 20

Transfer when master is receiving (reading) multiple bytes of data from slave . . . . . . . . . 20

Register address map. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

WHO_AM_I register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

CTRL_REG1 register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

CTRL_REG1 description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Power mode and low-power output data rate configurations . . . . . . . . . . . . . . . . . . . . . . . 26

Normal-mode output data rate configurations and low-pass cutoff frequencies . . . . . . . . . 26

CTRL_REG2 register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

CTRL_REG2 description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

High-pass filter mode configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

High-pass filter cutoff frequency configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

CTRL_REG3 register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

CTRL_REG3 description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Data signal on INT 1 and INT 2 pads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

CTRL_REG4 register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

CTRL_REG4 description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

CTRL_REG5 register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

CTRL_REG5 description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

Sleep-to-wake configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

REFERENCE register. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

REFERENCE description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

STATUS_REG register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

STATUS_REG description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

INT1_CFG register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

INT1_CFG description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Interrupt 1 source configurations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

INT1_SRC register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

INT1_SRC description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

INT1_THS register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

INT1_THS description. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

INT1_DURATION register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

INT2_DURATION description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

INT2_CFG register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

INT2_CFG description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

DocID027117 Rev 2

5/41

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