参数资料
型号: US2881LSO
厂商: Melexis Technologies NV
文件页数: 33/46页
文件大小: 498K
描述: IC LTCH CMOS H-S SOT-23
标准包装: 1
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-236-3,SC-59,SOT-23-3
供应商设备封装: SOT-23
包装: 剪切带 (CT)
其它名称: US2881LSOCT
3-19
Flow Meter
One popular device that uses a Hall IC is a flow meter (Figure 15). The spoked wheel (paddle wheel), is
driven by some type of medium flowing through the pipe. A magnet is attached at the tip of each spoke.
In the presence of moving vapor or liquid, the magnets spin at a speed related to the viscosity of the medi-
um flowing through the device. The spinning magnets will switch the Hall IC, producing a square wave
output, with a frequency proportional to the flow rate.
Figure 19, Flow Meter
Liquid or vapor entering in the
direction of the arrow spins the
paddle wheel switching the Hall
IC ON and OFF, creating a
square wave output.
Power Control
Many switches must control significant power. A Hall IC can do this only through a relay or Power FET.
For a component cost of $1.00, an isolated 50 Volt, 50 Amp switch can be made.
Figure 20, Power Switch
Section 3 - Applications
S
N
U18
627
12V
Load
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