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| 型号： | US1881LUA-AAA-000-BU |
| 厂商： | Melexis Technologies NV |
| 文件页数： | 24/46页 |
| 文件大小： | 498K |
| 描述： | IC LATCH CMOS MP TO-92UA |
| 产品目录绘图： | UA-92 Series Side |
| 标准包装： | 1,000 |
| 传感范围： | 9.5mT 跳闸，-9.5mT 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： | US1881LUA US1881LUA-ND |
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Section 3 - Applications
3-32
Sample Magnet A is used in the double-pole slide-by method to show the variation air gap may have in
a mechanical system. These changes in air gap may be caused by factors such as vibration, wear, etc...
Note the differences in each air gaps slope and maximum flux density. As the air gap distance becomes
larger, a decrease in flux density slope will cause less accurate switching in a Hall Effect System.
Graph 9
Graph 6, Slide-by with Sample Magnet A Air Gap Tolerance
By zooming in on the previous graph, min. BRP and max. BOP of the Hall Effect System can be shown
in greater detail and will also reveal the differences in activation distance at each air gap. See Graph 10.
Graph 7, Slide-by with Sample Magnet A
Change in Activation Distance with Air Gap
The plotted lines in Graph 7 do not include the effects of temperature. Graph 8 shows how temperature
will change the magnets flux density characteristics over the selected operating temperature range (-40
0
C
to 85
0
C), thus affecting the activation distance at min. B
RP
and max. B
OP
. To simplify the graph, only
the 2mm air gap is plotted.
-1200
-1000
-800
-600
-400
-200
0
200
400
600
800
1000
1200
-30
-25
-20
-15
-10
-5
0
5
10
15
20
25
30
Distance (mm)
Air Gap = 1.5 mm
Air Gap = 2.0 mm
Air Gap = 2.5 mm
-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
Air Gap = 2.0mm
Air Gap = 2.5mm
Always ON
Always OFF
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