AS5245HQFT datasheet(22/31 Pages) AMSCO

Il numero della parte	AS5245HQFT

Spiegazioni elettronici	Programmable 360쨘 Magnetic Angle Encoder with Absolute SSI and PWM Output

PDF	31 Pages

Scroll/Zoom	100%

Produttore elettronici	AMSCO [ams AG]

Homepage	http://www.ams.com

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AS5245

Data Sheet - A p p l i c a t i o n I n f o r m a t i o n

9.4 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 16).

Figure 16. Typical Magnet (6x3mm) and Magnetic Field Distribution

Magnet axis

Vertical field

component

(45…75mT)

360

Vertical field

component

R1 concentric circle;

radius 1.1mm

Magnet axis

typ. 6mm diameter

AS5245HQFT Scheda tecnica(PDF) 22 Page - ams AG