參數(shù)資料
型號(hào): MLX90215EVA-AAA-106-BU
廠商: Melexis Technologies NV
文件頁(yè)數(shù): 25/46頁(yè)
文件大?。?/td> 498K
描述: IC SENSOR PROG LINEAR HALL 4SIP
產(chǎn)品目錄繪圖: MLX90215, PTC-04 Series Side
標(biāo)準(zhǔn)包裝: 1,000
傳感范圍: 無(wú)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(diǎn): 穩(wěn)壓電壓
工作溫度: -40°C ~ 85°C
封裝/外殼: 4-SIP
供應(yīng)商設(shè)備封裝: 4-SIP
包裝: 散裝
產(chǎn)品目錄頁(yè)面: 2792 (CN2011-ZH PDF)
其它名稱: 90215DB106
MLX90215EVA
MLX90215EVA-ND
3-33
Graph 8, Slide-by with Magnet A
Change in Activation Distance With TC
There is a 17% difference in flux density over the entire temperature range compared with the fixed-tem-
perature case in Graph 7. Note that because of the negative temperature coefficient of the magnet, the neg-
ative temperature (-40
0
C) adds flux density to the magnet, while the positive temperature (85
0
C) reduces
flux density.
Graph 9 shows how the air gap tolerance and temperature coefficient add together and cause tolerance
buildup in the Hall Effect system.
Graph 9, Slide-by Method with Magnet A
Change in Activation distance with Air Gap & TC
The two plotted lines in Graph 9 show the minimum and maximum possible cases when temperature and
air gap are considered. The overall difference in distance between min. BRP and max. BOP is slightly
larger because of the sum of tolerances being considered. This design example has shown the tolerance
buildup of air gap, benefits of slope, Hall IC BOP to BRP variations and magnet Tc. We have not con-
sidered the variation of initial flux density, which you must obtain from a magnet supplier.
Section 3 - Applications
-400
-300
-200
-100
0
100
200
300
400
-1
-0.75
-0.5    -0.25
0
0.25
0.5
0.75
1
Distance (mm)
Temp = 25
o
C
Temp = 85
o
C
Temp -40
o
C
-400
-300
-200
-100
0
100
200
300
400
-1.5
-1
-0.5
0
0.5
1
1.5
Distance (mm)
Air Gap = 1.5mm @ -40
o
C
Air Gap = 2.5mm @ 80
o
C
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