ALS31300

ALS31300 3D Linear Hall-Effect Sensor with I2C Output and Advanced Low Power Management FEATURES AND BENEFITS X- and Y-axis sensing of joystick position Z-axis sensing of “crouch” or push button motion Capable of operating with back-bias magnets for joystick return-to-zero Ideal for battery-powered, low-voltage applications □ 2.65 to 3.5 V single supply operation □ 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 □ 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... PACKAGE: 10-Contact DFN (EJ) Pin 1 Z Y X Not to scale DESCRIPTION TheALS31300 3DMAG™ position sensor IC provides a 12-bit digital value corresponding to the magnetic field measured in each of the X, Y, and Z axes. The ALS31300 is preconfigured for use in 3D sensing applications for head-on linear motion, slide-by position sensing, and rotation angle measurements. The ALS31300 is also offered in joystick mode, including a low gain option for the Z axis channel. This feature enables the use of a back-bias magnet to provide return-to-zero force instead of traditional spring-based solutions. Three different f...