參數(shù)資料
型號： AS5013-IQFT-1000
廠商： ams
文件頁數(shù)： 8/32頁
文件大?。?/td> 1012K
描述： IC ENCODER HALL SENSOR 16-QFN
標準包裝： 1,000
系列： EasyPoint™
傳感范圍： 30mT ~ 120mT
類型： 專用型
電源電壓： 2.7 V ~ 3.6 V
電流 - 電源： 190µA
輸出類型： 數(shù)字式，開漏極
特點： 低功率
工作溫度： -20°C ~ 80°C
封裝/外殼： 16-UQFN 裸露焊盤
供應(yīng)商設(shè)備封裝： 16-QFN（4x4）
包裝： 帶卷 (TR)
www.ams.com/AS5013
Revision 1.11
8 - 32
AS5013
Datasheet - Detailed Description
7.2 XY Coordinates Interpretation
The movement of the magnet over the Hall elements causes response which is geometrically distributed like a bell-shaped curve.
The maximum magnet travel is a circle of 2mm radius around the center of the AS5013. The hall elements C1..C4 are placed on a circle
centered on the middle of the package. The hall element C5, placed exactly in the middle is used for better linearity response with magnet
displacement larger than ?.0mm.
Figure 5. Hall Element Placement and Magnetic Field when the Magnet is Centered over each Hall Element
7.3 Transfer Function
AS5013 has the possibility to adjust the transfer function for the used magnet and a specific range to optimize the linearity and resolution. The
value will be provided from ams AG and has to be written in the algorithm related registers M_ctrl [0x2B], J_ctrl [0x2C], T_ctrl [0x2D] during the
initialization phase.
Please contact ams for parameter settings.
Below is the optimal setup for a range of ?.6 mm to obtain the best dynamic range from XY registers -128~+127 with one given magnet airgap,
with d2x0.8mm axial magnet.
Figure 6. Example of Transfer Function Y_displacement vs. Y_register, Optimized for 0.6mm Travel Radius
dy @ movement in y direction at constant x
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dy @ movement in x direction at constant y
-150
-100
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9
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mechanical y [um]
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