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| 型号： | A1361LKTTN-T |
| 元件分类： | 磁阻传感器 |
| 英文描述： | MAGNETIC FIELD SENSOR-HALL EFFECT, 4.65-4.80V, RECTANGULAR, THROUGH HOLE MOUNT |
| 封装： | LEAD FREE, PLASTIC, SIP-4 |
| 文件页数： | 15/25页 |
| 文件大小： | 615K |
| 代理商： | A1361LKTTN-T |
A1360, A1361,
and A1362
To construct a current sensor using the A136x, first consider a
current carrying wire that we want to observe. As dictated by
Ampere’s Law, a magnetic field is produced around the wire
that is proportional to the amount of current flowing through
the wire. By passing this wire through a soft magnetic core, the
magnetic flux produced by the wire can be concentrated and
directed through a gap in the core. The magnetic flux density can
be measured by inserting the A136x SIP into the gap in the core.
As a result, the output of the A136x device will be proportional
to the amount of current flowing through the wire.
The example feedthrough current sensing setup shown below
(figure 7) has a core made of “mu metal” that is 2 mm thick
and 4 mm wide. The inner radius of the core is 14.5 mm and
the outer radius is 18.5 mm. The wire going through the center
of the core has a radius of 9 mm. Using this setup with a gap of
1.7 mm, a field strength results that is on the order of 7 G /A at
the Hall element in the A136x.
The recommended core material for construction of the concen-
trator depends on the specific application. If high flux saturation
is desired, then an alloy such as HyPerm49 is recommended.
For lower-current level sensing applications, a material such as
HyMu80 may be desired. (HyMu80 has lower magnetic flux
saturation than HyPerm49, therefore more HyMu80 mate-
rial is required to carry the same amount of flux compared
to Hyperm49.) If frequency response is a concern, then eddy
currents can be reduced by either laminating the HyPerm49 or
HyMu80 alloys, or by using a ferrite core.
Constructing a Current Sensor Using the A136x
18 mm
4 mm
2 mm
37 mm
Application-specific housing
Ring concentrator
Current-conducting wire
A136x
Center Hall element in gap
1.7 mm
Figure 7. The example current sensor setup used to generate the data in this section was
constructed with a split-ring concentrator and an A136x device. A copper wire was fed
through the concentrator, and the A136x placed in its gap. This approximates a typical
ammeter application on a thick wire, such as shown in the left view. Note that such
applications usually have a protective housing, which should be taken into consideration
when designing the nal application. The housing is beyond the scope of this example.
Low-Noise Programmable Linear Hall Effect Sensor ICs with
Adjustable Bandwidth (50 kHz Maximum) and Analog Output
22
Allegro MicroSystems, Inc.
115 Northeast Cutoff
Worcester, Massachusetts 01615-0036 U.S.A.
1.508.853.5000; www.allegromicro.com
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相关代理商/技术参数 |
参数描述 |
|---|---|
| A1362LKTTN-T | 功能描述:IC HALL EFFECT SENSOR LN 4-SIP RoHS:是 类别:传感器，转换器 >> 磁性 - 霍尔效应，数字式开关，线性，罗盘 (IC) 系列:- 标准包装:1 系列:- 传感范围:20mT ~ 80mT 类型:旋转 电源电压:4.5 V ~ 5.5 V 电流 - 电源:15mA 电流 - 输出（最大）:- 输出类型:数字式，PWM，8.5 位串行 特点:可编程 工作温度:-40°C ~ 150°C 封装/外壳:20-SSOP（0.209"，5.30mm 宽） 供应商设备封装:20-SSOP 包装:Digi-Reel® 其它名称:AS5132-HSST-500DKR |
| A1363LKTTN-10-T | 功能描述:IC HALL SENSOR 6.4-14MV/G 4SIP 制造商:allegro microsystems, llc 系列:- 包装:剪切带（CT） 零件状态:有效 类型:线性 技术:霍尔效应 轴:单路 感应范围:- 电压 - 电源:4.5 V ~ 5.5 V 电流 - 电源（最大值）:15mA 电流 - 输出（最大值）:10mA 输出类型:模拟电压 分辨率:- 带宽:120kHz 工作温度:-40°C ~ 150°C（TA） 特性:可编程，温度补偿 封装/外壳:4-SIP 模块 供应商器件封装:4-SIP 标准包装:1 |
| A1363LKTTN-1-T | 功能描述:IC HALL SENSOR 0.6-1.3MV/G 4SIP 制造商:allegro microsystems, llc 系列:- 包装:剪切带（CT） 零件状态:有效 类型:线性 技术:霍尔效应 轴:单路 感应范围:- 电压 - 电源:4.5 V ~ 5.5 V 电流 - 电源（最大值）:15mA 电流 - 输出（最大值）:10mA 输出类型:模拟电压 分辨率:- 带宽:120kHz 工作温度:-40°C ~ 150°C（TA） 特性:可编程，温度补偿 封装/外壳:4-SIP 模块 供应商器件封装:模块 标准包装:1 |
| A1363LKTTN-2-T | 功能描述:IC HALL SENSOR 1.3-2.9MV/G 4SIP 制造商:allegro microsystems, llc 系列:- 包装:剪切带（CT） 零件状态:有效 类型:线性 技术:霍尔效应 轴:单路 感应范围:- 电压 - 电源:4.5 V ~ 5.5 V 电流 - 电源（最大值）:15mA 电流 - 输出（最大值）:10mA 输出类型:模拟电压 分辨率:- 带宽:120kHz 工作温度:-40°C ~ 150°C（TA） 特性:可编程，温度补偿 封装/外壳:4-SIP 模块 供应商器件封装:4-SIP 标准包装:1 |
| A1363LKTTN-5-T | 功能描述:IC HALL SENSOR 2.9-6.4MV/G 4SIP 制造商:allegro microsystems, llc 系列:- 包装:剪切带（CT） 零件状态:有效 类型:线性 技术:霍尔效应 轴:单路 感应范围:- 电压 - 电源:4.5 V ~ 5.5 V 电流 - 电源（最大值）:15mA 电流 - 输出（最大值）:10mA 输出类型:模拟电压 分辨率:- 带宽:120kHz 工作温度:-40°C ~ 150°C（TA） 特性:可编程，温度补偿 封装/外壳:4-SIP 模块 供应商器件封装:4-SIP 标准包装:1 |
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