A1335 Datasheet, PDF (21/29 Pages) Allegro MicroSystems – Precision Hall-Effect Angle Sensor IC with I 2C, SPI, and SENT Interfaces

A1335
Precision Hall-Effect Angle Sensor IC
with I²C, SPI, and SENT Interfaces
Hall element
Figure 15: Centering the axis of magnet rotation on the Hall element provides the strongest signal in all degrees
of rotation.
d_axial(on-axis)
Axis of
Rotation
d_axial(off-axis)
AG (off axis)
AG (on axis)
AG (on axis, centered)
Magnetic
Flux Lines
Figure 16: The magnetic flux density degenerates rapidly away from the plane of peak north-south polarity. When
the axis of rotation is placed away from the Hall element, the device must be placed closer to the magnetic poles
to maintain an adequate level of flux at the Hall element.
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