General Description
The AS5403 can measure magnetic fields components in all three dimensions and converts the magnetic field information into absolute position information.
Only a simple 2-pole magnet is required as the magnetic field source.
Using two 3D-Hall cells allows absolute (single pixel) as well as differential (double pixel) 3D magnetic field measurement.
The differential measurement makes the AS5403 ideal for use in rough automotive position sensing applications that include not only dust, dirt or moisture but also unwanted magnetic stray fields.
FEATUREs
High magnetic input range
Dual 3D pixel principle
Temperature range from -40 to 150°C (ambient)
Analog or PWM output, SPI as alternative
Offset and sensitivity accuracy over temperature
Flexible configuration registers
3D raw data assessment possible
33 linearization points
Integrated diagnostic functions
Benefits
High flexibility in magnet selection
Suppression against magnetic stray fields
Suitable for high temperature applications
Flexibility in choice of interface
Best in class performance parameters
Flexible mechanical arrangement of magnet
External calculations of raw data
High linearity after teaching
Supporting safety critical applications
APPLICATIONs
Linear position:
• Clutch/brake pedal
• Gearbox sensor
Off-Axis:
• Steering angle sensor
• Gearbox shift link