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ALS31313KLEATR-1000 PDF预览

ALS31313KLEATR-1000

更新时间: 2024-11-09 01:07:35
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描述
Automotive Grade, 3-D Linear Hall-Effect Sensor with I2C Output and Advanced Low Power Management

ALS31313KLEATR-1000 数据手册

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ALS31313  
Automotive Grade, 3-D Linear Hall-Effect Sensor  
with I2C Output and Advanced Low Power Management  
FEATURES AND BENEFITS  
DESCRIPTION  
• AEC-Q100 automotive qualification pending  
• Senses magnetic fields in X, Y, and Z axes  
• Z-axis sensing of “crouch” or push button motion  
• Capable of operating with back-bias magnets  
• Ideal for battery-powered, low-voltage applications  
2.65 to 3.5 V single supply operation  
TheALS31313three-axislinearHall-effectsensorICprovides  
a 12-bit digital value corresponding to the magnetic field  
measured in each of the X, Y, and Z axes. The ALS31313 is  
preconfigured for use in 3D sensing applications for head-on  
linear motion, slide-by position sensing, and rotation angle  
measurements.TheALS31313isalsoofferedinjoystickmode,  
including a low gain option for the Z axis channel. This feature  
enablestheuseofaback-biasmagnettoprovidereturn-to-zero  
force instead of traditional spring-based solutions.  
1 MHz I2C compatibility down to 1.8 V  
14 nA (typ) Sleep ICC  
12 µA to 2 mA ICC (typ) in low-power duty cycle mode  
• Industry standard I2C interface for easy system integration  
Up to 1 MHz (Fast Mode+) I2C communication  
16 selectable addresses via external resistor divider  
127 available address configurable via EEPROM  
• On-chip EEPROM  
Three different factory-programmed sensitivity ranges are  
available: ±500 G, ±1000 G, and ±2000 G.  
The I2C address of theALS31313 can be set either by external  
resistors (16 unique addresses) or programmed into EEPROM  
via I2C (127 unique addresses), allowing for multiple devices  
on the same bus. The ALS31313 also includes 78 bits of user  
EEPROM.  
Stores factory- and user-configured settings  
78 bits of user EEPROM for additional storage  
On-chip charge pump for easy programming  
Continued on next page...  
Power management of the ALS31313 is highly configurable,  
allowing for system-level optimization of supply current and  
performance. Sleep mode consumes just 14 nA (typical),  
makingtheALS31313wellsuitedforportable,battery-operated  
applications.  
PACKAGE:  
8-Pin TSSOP (LE)  
Z
X
TheALS31313 is supplied in an 8-pin TSSOP. The package is  
lead (Pb) free with 100% matte-tin leadframe plating.  
Y
Not to scale  
Power  
Controller  
I2C Serial  
Interface  
VCC  
SDA  
SCL  
Temp  
Sensor  
ADR0  
Slave  
Address  
ADC  
Z
Y
Digital  
Controller  
MUX  
ADC  
ADR1  
INT  
X
Hall  
Elements  
Charge  
Pump  
EEPROM  
Memory  
GND  
Figure 1: Functional Block Diagram  
ALS31313-DS, Rev. 2  
MCO-0000394  
May 2, 2018  

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