ALS31313: Automotive Grade, 3-D Magnetic Linear Hall-Effect Sensor with I2C Output and Advanced Low Power Management

The ALS31313 3D magnetic sensor provides 12-bit digital output words that are proportional to the strength of the field present in each of the X, Y, and Z axes. The quiescent output value (zero magnetic field applied) is at mid-scale. The ALS31313 is available preconfigured for use in joystick mode that includes crouch capability or single-ended X, Y, and Z mode. Single-ended configured devices are suitable for 3D linear sensing or 2D angle sensing applications and are available with three different factory-programmed sensitivity operating ranges: ±500 G, ±1000 G, and ±2000 G. The sensitivity temperature coefficient is preprogrammed to support the drift profile of neodymium magnets.

The ALS31313 incorporates I²Cterface for easy integration into a wide variety of applications. The I²C地址可以通过外部电阻（16个唯一地址）或编程设置
通过我进入EEPROM²C（127个唯一地址），允许同一总线上的多个设备。ALS31313还包括78位用户EEPROM。

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), making the ALS31313 well suited for portable, battery-operated applications.

The ALS31313 is supplied in an 8-pin TSSOP. The package is lead (Pb) free with 100% matte-tin leadframe plating.

• AEC-Q100汽车资格待处理
• 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
• 适用于电池供电，低压应用雷竞技最新网址
  • 2.65 to 3.5 V single supply operation
  • 1 MHz I2C兼容性降至1.8 V.
  • 14 nA (typ) Sleep I_CC
  • 12 μA to 2 mA I_CC(typ) in low-power duty cycle mode
• Industry standard I²Cterface 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
  • Stores factory- and user-configured settings
  • 78 bits of user EEPROM for additional storage
  • On-chip charge pump for easy programming
• Flexible 12-bit ADC with 10-bit ENOB (Effective Number of Bits)
• 单端模式（x，y和z轴）：启用一到三个轴
• Differential Mode (X and Y axes): enables slide-by linear sensing
• Common Mode (X and Y axes): enables joystick operation
• 1％（典型值）精确的工厂修整灵敏度选项（±500 g，±1000 g和±2000 g全尺寸输入）
• Integrated temperature sensor
• 宽环境温度范围：-40°C至125°C