AS5045 AB austriamicrosystems, AS5045 AB Datasheet - Page 23

• Manufacturer Part Number: AS5045 AB
• Description: BOARD ADAPTER AS5045
• Manufacturer: austriamicrosystems

Specifications of AS5045 AB

• Sensor Type: Magnetic, Rotary Position
• Sensing Range: 360°
• Interface: Serial
• Voltage - Supply: 9V
• Embedded: No
• Utilized Ic / Part: AS5045
• Lead Free Status / RoHS Status: Lead free by exemption / RoHS compliant by exemption
• Sensitivity: -

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 B
a concentric circle with a radius of 1.1mm (R1), should be in the range of ±45mT…±75mT (see Figure 17).
Figure 17. Typical Magnet (6x3mm) and Magnetic Field Distribution
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Vertical field
component
N
R1
typ. 6mm diameter
S
Magnet axis
Magnet axis
N
S
R1 concentric circle;
radius 1.1mm
Revision 1.7
Vertical field
component
Bv
0
(45…75mT)
v
at a given distance, along
360
23 – 33