参数资料
型号: US2881LUA-AAA-000-BU
厂商: Melexis Technologies NV
文件页数: 22/46页
文件大小: 498K
描述: IC LATCH CMOS H-S TO-92UA
产品目录绘图: UA-92 Series Side
标准包装: 1,000
传感范围: 4.5mT 跳闸,-4.5mT 释放
类型: 双极卡锁
电源电压: 3.5 V ~ 24 V
电流 - 电源: 5mA
电流 - 输出(最大): 50mA
输出类型: 数字式,开漏极
工作温度: -40°C ~ 150°C
封装/外壳: TO-226-3,TO-92-3 短体
供应商设备封装: TO-92UA
包装: 散装
产品目录页面: 2792 (CN2011-ZH PDF)
其它名称: US2881LUA
US2881LUA-ND
Section 3 - Applications
3-30
Graph 2, Slide-by Method with Magnet A Steep Slope vs. Shallow Slope
Tolerances Build-up
The following examples incorporate many different factors in order to show how tolerance buildup can
affect a Hall Effect system. Air gap tolerance, temperature range, and the temperature coefficient of the
magnet will cause the activation distance of a US5881 EUA to vary, thus impacting switching accuracy.
Tolerances:
Air gap Tolerance = 3mm. +
1 mm. and 6mm. +
1mm.
US5881EUA B
OP
/B
RP
Range = 95G min. B
RP
to 300G max. B
OP
(IC Temperature Selection (EUA) = -40
o
C to 85
o
C)
Temperature Range = -40
o
C to 85
o
C
Magnet Temp. Coefficient = -0.1098%/
o
C
The US5880 Hall-Effect Switch has a maximum BOP of 250 Gauss and a minimum BRP of 140 Gauss.
If this part were to be actuated by sample Magnet B at an air gap of 3mm and 6mm, the following results
would occur (See Graphs 3 and 4). Each graph has an air gap tolerance of +
1mm which could be due to
a loosely fitted mechanical assembly. Notice the difference in distance and slope between Graphs 3 and
4.
Graph 3, Slide-by With Magnet A, Shallow Slope
Graph 2 shows what
happens to the slope of a
flux density vs. distance
graph by using different air
gaps with the same magnet
configuration.
Distance (mm)
  1 2 3 4 5 6 7 8 9 10
400
200
0
600
800
1000
1200
Air Gap = 2.5mm
Air Gap = 5mm
0
200
400
600
800
1000
0
2
4
6
8
10
12
14
16
18
20
Distance (mm)
Air Gap = 5 mm
Air Gap = 6 mm
Air Gap = 7 mm
Always "OFF"
Always "ON"
相关PDF资料
PDF描述
MDD220-12N1 MOD DIODE DUAL 1200V Y2-DCB
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US5881EUA-AAA-000-BU IC HALL EFFECT SW MP TO-92UA
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