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AS5045TR View Datasheet(PDF) - austriamicrosystems AG

Part Name
Description
MFG CO.
AS5045TR
AMSCO
austriamicrosystems AG AMSCO
'AS5045TR' PDF : 34 Pages View PDF
AS5045
Data Sheet
14 Choosing the Proper Magnet
Typically the magnet should be 6mm in diameter and 2.5mm in height. Magnetic materials such as rare earth
AlNiCo/SmCo5 or NdFeB are recommended.
The magnetic field strength perpendicular to the die surface has to be in the range of ±45mT…±75mT (peak).
The magnet’s field strength should be verified using a gauss-meter. The magnetic field Bv at a given distance, along
a concentric circle with a radius of 1.1mm (R1), should be in the range of ±45mT…±75mT (see Figure 17).
lid Figure 17. Typical Magnet (6x3mm) and Magnetic Field Distribution
typ. 6mm diameter
ill va N
S
t Magnet axis
R1
Magnet axis
G s Vertical field
A t component
Vertical field
component
Bv
(45…75mT)
s n N S
0
360
m te R1concentric circle;
Technicaal con radius1.1mm
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