參數(shù)資料
型號: MLX90215EVA-AAA-106-BU
廠商: Melexis Technologies NV
文件頁數(shù): 16/46頁
文件大小: 498K
描述: IC SENSOR PROG LINEAR HALL 4SIP
產(chǎn)品目錄繪圖: MLX90215, PTC-04 Series Side
標準包裝: 1,000
傳感范圍: 無限制
類型: 線性 - 可編程
電源電壓: 4.5 V ~ 5.5 V
電流 - 電源: 6.5mA
電流 - 輸出(最大): 2mA
輸出類型: 模擬,比率
特點: 穩(wěn)壓電壓
工作溫度: -40°C ~ 85°C
封裝/外殼: 4-SIP
供應商設備封裝: 4-SIP
包裝: 散裝
產(chǎn)品目錄頁面: 2792 (CN2011-ZH PDF)
其它名稱: 90215DB106
MLX90215EVA
MLX90215EVA-ND
Section 3 - Applications
3-8
Choosing A Magnet
Common Magnetic Materials
There are four classes of commercial permanent magnet materials. They are:
Ceramic
Alnico
Neodymium Iron Boron
Samarium Cobalt
Depending on the application at hand, the use of one material over another may have its benefits. The two
sample magnets provided with The Melexis Hall Effect Sensor Design Kit are both Neodymium 35 mag-
nets. They have very high flux densities for their size and should be handled with caution. These magnets
have been provided to assist in the design and construction of a Hall Effect Sensor System. The square
magnet will be referred to as magnet A, while the cylindrical magnet will be referred to as magnet B.
Graphs 1 through 4 are constructed using magnets A and B. South poles are marked with a do of red paint.
Melexis provides two types of neodymium magnets in the design kit chosen for low cost and high perfor-
mance, up to80
0
C. Neodymium is preferred for small-size magnets typically used with Hall ICs. If larger
magnet sizes or higher temperature ranges are necessary, Alnico or ceramic would be a better choice of
material.
Figure 11, Sample Magnets
4.4mm
3.0mm
4.6mm
N
S
Magnet A, Square
Magnet B, Cylindrical
dia 9.5mm
10.0mm
S
A-15
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