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A1642LKNTN-I3-T

更新时间： 2024-09-19 14:40:43
品牌 Logo 应用领域
急速微 - ALLEGRO 信息通信管理传感器换能器
页数 文件大小 规格书
14页 356K
描述
Hall Effect Sensor, BICMOS, Plastic/epoxy, Rectangular, 4 Pin, Through Hole Mount, LEAD FREE, PLASTIC, SIP-4

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A1642LKNTN-I3-T 技术参数

是否Rohs认证：符合生命周期：Active
包装说明：SIP4,.03,50Reach Compliance Code：compliant
风险等级：5.71Is Samacsys：N
主体宽度：1.55 mm主体长度或直径：5.21 mm
外壳：PLASTICJESD-609代码：e3
安装特点：THROUGH HOLE MOUNT端子数量：4
最大工作电流：16 mA最高工作温度：150 °C
最低工作温度：-40 °C输出接口类型：2-WIRE INTERFACE
输出类型：DIGITAL CURRENT封装主体材料：PLASTIC/EPOXY
封装等效代码：SIP4,.03,50封装形状/形式：RECTANGULAR
电源：4/24 V传感器/换能器类型：MAGNETIC FIELD SENSOR,HALL EFFECT
子类别：Other Sensors/Transducers最大供电电压：24 V
最小供电电压：4 V表面贴装：NO
技术：BICMOS端子面层：Matte Tin (Sn)
端接类型：SOLDERBase Number Matches：1

A1642LKNTN-I3-T 数据手册

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A1642  
Two-Wire True Zero-Speed Miniature Differential  
Peak-Detecting Sensor IC with Continuous Calibration  
Features and Benefits  
Description  
▪ Running mode calibration for continuous optimization  
▪ Single chip IC for high reliability  
The A1642 is an optimized Hall effect sensing integrated  
circuitthatprovidesauser-friendlysolutionfortruezero-speed  
digitalring-magnetsensingintwo-wireapplications.Thissmall  
package can be easily assembled and used in conjunction with  
a wide variety of target shapes and sizes.  
▪ Internal current regulator for 2-wire operation  
▪ Precise duty cycle signal over operating temperature range  
▪ Large operating air gaps  
▪ Automatic Gain Control (AGC) for air gap independent  
switchpoints  
▪ Automatic Offset Adjustment (AOA) for signal processing  
optimization  
▪ True zero-speed operation  
▪ Undervoltage lockout  
The integrated circuit incorporates dual Hall effect elements  
and signal processing that switches in response to differential  
magnetic signals created by ring magnet poles. The circuitry  
containsasophisticateddigitalcircuittoreducesystemoffsets,  
to calibrate the gain for air-gap–independent switchpoints,  
and to achieve true zero-speed operation. Signal optimization  
occurs at power-on through the combination of offset and  
gain adjust and is maintained throughout the operating time  
with the use of a running-mode calibration. The running-mode  
calibration allows immunity to environmental effects such as  
micro-oscillations of the target or sudden air gap changes.  
▪ Wide operating voltage range  
▪ Wide-lead package suitable for welding external  
components directly to the package leads or for welding  
the device to a leadframe.  
Package: 4-pin SIP (Suffix KN)  
The regulated current output is configured for two-wire  
applications and the A1642 is ideally suited for obtaining  
speed and duty cycle information in ABS (antilock braking  
systems). The 1.5 mm spacing between the dual Hall elements  
is optimized for fine pitch ring-magnet–based configurations.  
Forapplicationsrequiringsensingofrotatingferrousgearsand  
targets,refertotheAllegroATSseriesofproducts.Thepackage  
is lead (Pb) free, with 100% matte tin leadframe plating.  
Not to scale  
Functional Block Diagram  
VCC  
Hall  
Amplifier  
Gain  
Automatic Offset  
Control  
AOA DAC  
AGC DAC  
Internal Regulator  
Gain Control  
Tracking  
DAC  
Peak Hold  
GND  
Test  
Test Signals  
A1642LKN-DS, Rev. 4  
1234567...14

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