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A1142 PDF预览

A1142

更新时间: 2024-02-02 11:37:47
品牌 Logo 应用领域
急速微 - ALLEGRO 开关
页数 文件大小 规格书
13页 344K
描述
Sensitive Two-Wire Chopper-Stabilized Unipolar Hall Effect Switches

A1142 技术参数

是否Rohs认证: 不符合生命周期:Obsolete
零件包装代码:SIP包装说明:SIP,
针数:3Reach Compliance Code:compliant
HTS代码:8542.39.00.01风险等级:5.91
模拟集成电路 - 其他类型:ANALOG CIRCUITJESD-30 代码:R-PSIP-T3
JESD-609代码:e0长度:4.105 mm
功能数量:1端子数量:3
最高工作温度:150 °C最低工作温度:-40 °C
封装主体材料:PLASTIC/EPOXY封装代码:SIP
封装形状:RECTANGULAR封装形式:IN-LINE
峰值回流温度(摄氏度):240认证状态:Not Qualified
座面最大高度:5.26 mm最大供电电压 (Vsup):24 V
最小供电电压 (Vsup):3.8 V标称供电电压 (Vsup):12 V
表面贴装:NO技术:BICMOS
温度等级:AUTOMOTIVE端子面层:TIN LEAD
端子形式:THROUGH-HOLE端子节距:1.27 mm
端子位置:SINGLE处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:1.52 mmBase Number Matches:1

A1142 数据手册

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A1140, A1141, A1142, and A1143  
Sensitive Two-Wire Chopper-Stabilized  
Unipolar Hall Effect Switches  
Features and Benefits  
Chopper stabilization  
Description  
The A1140, A1141, A1142, and A1143 devices are sensitive,  
two-wire, unipolar, Hall effect switches that are factory-  
programmed at end-of-line to optimize magnetic switchpoint  
accuracy.Thesedevicesuseapatentedhighfrequencychopper-  
Low switchpoint drift over operating  
temperature range  
Low sensitivity to stress  
Factory programmed at end-of-line for optimized  
switchpoints  
On-chip protection  
stabilization technique, produced using the Allegro advanced  
BiCMOS wafer fabrication process, to achieve magnetic  
stability and to eliminate offset inherent in single-element  
devices exposed to harsh application environments.  
Supply transient protection  
Reverse-battery protection  
On-board voltage regulator  
3.5 to 24 V operation  
Commonly found in a number of automotive applications,  
these switches are utilized to sense seat track position,  
seat belt buckle presence, hood/trunk latching, and shift  
selector position. Two-wire unipolar switches, such as the  
A1140/41/42/43 family, are particularly advantageous in  
price-sensitive applications because they require one less  
wire for operation than do switches with the more traditional  
open-collector output. Additionally, the system designer  
inherently gains diagnostics because there is always output  
current flowing, which should be in either of two narrow  
ranges. Any current level not within these ranges indicates a  
fault condition. The A1140/41/42/43 family of switches also  
Packages: 3 pin SOT23W (suffix LH), and  
3 pin SIP (suffix UA)  
Continued on the next page…  
Not to scale  
Functional Block Diagram  
V+  
VCC  
Regulator  
To All Subcircuits  
Clock/Logic  
Amp  
0.01 uF  
Low-Pass  
Filter  
GND  
GND  
Package UA Only  
A1140-DS, Rev. 8  

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