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HMC1052L-TR 参数 Datasheet PDF下载

HMC1052L-TR图片预览
型号: HMC1052L-TR
PDF下载: 下载PDF文件 查看货源
内容描述: [1, 2 and 3 Axis Magnetic Sensors]
分类和应用: 传感器换能器
文件页数/大小: 12 页 / 687 K
品牌: HONEYWELL [ Honeywell ]
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HMC1051/HMC1052/HMC1053  
PACKAGE DRAWING HMC1053 (16-PIN LCC)  
STENCIL DESIGN AND SOLDER PASTE  
A 4 mil stencil and 100% paste coverage is recommended for the electrical contact pads.  
REFLOW AND REWORK  
The HMC1051ZL and HMC1053 parts should reference application note AN-216. The other part types have no special  
profile required and compatible with lead eutectic and lead-free solder paste reflow profiles up to 220°C. Honeywell  
recommends the adherence to solder paste manufacturer’s guidelines. The HMC105X parts may be reworked with  
soldering irons, but extreme care must be taken not to overheat the copper pads from the part’s fiberglass substrate. Irons  
with a tip temperature no greater than 315°C should be used. Excessive rework risks the copper pads pulling away into  
the molten solder.  
DEVICE OPERATION  
The Honeywell HMC105X family of magnetoresistive sensors are Wheatstone bridge devices to measure magnetic fields.  
With power supply applied to a bridge, the sensor converts any incident magnetic field in the sensitive axis direction to a  
differential voltage output. In addition to the bridge circuit, the sensor has two on-chip magnetically coupled straps; the  
offset strap and the set/reset strap. These straps are Honeywell patented features for incident field adjustment and  
magnetic domain alignment; and eliminate the need for external coils positioned around the sensors.  
The magnetoresistive sensors are made of a nickel-iron (Permalloy) thin-film deposited on a silicon wafer and patterned  
as a resistive strip element. In the presence of a magnetic field, a change in the bridge resistive elements causes a  
corresponding change in voltage across the bridge outputs.  
These resistive elements are aligned together to have a common sensitive axis (indicated by arrows on the pinouts) that  
will provide positive voltage change with magnetic fields increasing in the sensitive direction. Because the output only is in  
proportion to the one-dimensional axis (the principle of anisotropy) and its magnitude, additional sensor bridges placed at  
orthogonal directions permit accurate measurement of arbitrary field direction. The combination of sensor bridges in two  
and three orthogonal axis permit applications such as compassing and magnetometry.  
The offset strap allows for several modes of operation when a direct current is driven through it. These modes are: 1)  
Subtraction (bucking) of an unwanted external magnetic field, 2) null-ing of the bridge offset voltage, 3) Closed loop field  
cancellation, and 4) Auto-calibration of bridge gain.  
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www.honeywell.com  
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