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AS5048A/AS5048B

Magnetic Rotary Encoder

14-bit Angular Position Sensor

Datasheet

6.4

Physical Placement of the Magnet

The best linearity can be achieved by placing the center of the magnet exactly over the defined center of the chip as shown

in the drawing below:

1

Defined

center

2.5 mm

2.5 mm

3.2 mm

3.2 mm

Area of recommended maximum

magnet misalignment

Figure 17 : Defined chip center and magnet displac ement radius

6.5

Magnet Placement

displacement e.g. 0.5 mm) from the defined center of the IC.

The magnet may be placed below or above the device. The distance should be chosen such that the magnetic field on the

die surface is within the specified limits The typical distance “z” between the magnet and the package surface is 0.5mm to

2.5mm, provided the use of the recommended magnet material and dimensions (6mm x 3mm). Larger distances are

possible, as long as the required magnetic field strength stays within the defined limits.

However, a magnetic field outside the specified range may still produce usable results, but the out-of-range condition will be

indicated by indication flags.

Package surface

Die surface

N

S

Figure 18: Vertica l plac ement of the magnet