Revision 1.3

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AS5048A/AS5048B

Magnetic Rotary Encoder

14-bit Angular Position Sensor

Datasheet

6.3

Choosing the Proper Magnet

The AS5048 works with a variety of different magnets in size and shape. A typical magnet could be 6-8 mm in diameter and

≥2.5mm in height The magnetic field strength perpendicular to the die surface has to be in the range of ±30mT…±70mT

(peak).

concentric circle with a radius of 1.1mm (R1), should be in the range of ±30mT…±70mT.

N

S

Magnet axis

Vertical field

component

(30…70mT)

0

3 60

360

Bv

Vertical field

component

R1 concentric circle;

radius 1.1mm

R1

Magnet axis

ty p. 6-8mm diameter

S

N

Figure 16: Typical magnet and magnetic flux distribution