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A1242ELHLT-I1-T PDF预览

A1242ELHLT-I1-T

更新时间: 2024-01-09 02:38:35
品牌 Logo 应用领域
急速微 - ALLEGRO 传感器换能器磁场传感器信息通信管理
页数 文件大小 规格书
11页 364K
描述
Two-Wire Chopper-Stabilized Hall Effect Latch

A1242ELHLT-I1-T 技术参数

是否Rohs认证: 符合生命周期:Obsolete
包装说明:TO-236Reach Compliance Code:unknown
风险等级:5.83其他特性:REVERSE BATTERY PROTECTION
主体宽度:1.91 mm主体高度:1 mm
主体长度或直径:2.98 mm滞后:6.4 mT
输入模式:UNIPOLARJESD-609代码:e3
最大磁场范围:8 mT最小磁场范围:-8 mT
安装特点:SURFACE MOUNT端子数量:3
最大工作电流:17 mA最高工作温度:85 °C
最低工作温度:-40 °C输出接口类型:2-WIRE INTERFACE
输出类型:ANALOG CURRENT封装主体材料:PLASTIC/EPOXY
封装等效代码:TO-236封装形状/形式:RECTANGULAR
电源:3.5/24 V传感器/换能器类型:MAGNETIC FIELD SENSOR,HALL EFFECT
子类别:Other Sensors最大供电电压:24 V
最小供电电压:3.5 V表面贴装:YES
技术:BICMOS端子面层:Matte Tin (Sn)
端接类型:SOLDERBase Number Matches:1

A1242ELHLT-I1-T 数据手册

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A1242  
Two-Wire Chopper-Stabilized Hall Effect Latch  
The A1242 Hall effect latch is a two-wire latch especially suited for operation  
over extended temperature ranges, from –40 to +150°C. Superior high-tempera-  
ture performance is made possible through the Allegro® patented dynamic offset  
cancellation technique, which reduces the residual offset voltage normally caused  
by device overmolding, temperature dependencies, and thermal stress.  
Package LH, 3-pin Surface Mount  
The current-switching output technique allows for the reduction in cost in the  
wiring harness because only two connections to the sensor are required. The cur-  
rent-switching output structure also inherently provides more immunity against  
EMC/ESD transients. These sensors have low magnetic thresholds, thereby  
enabling more flexibility in the magnetic circuit design.  
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The Hall effect latch will be in the high output current state in the presence of a  
magnetic South Pole field of sufficient magnitude and will remain in this state  
until a sufficient North Pole field is present.  
NC  
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The A1242 includes the following on a single silicon chip: a voltage regulator,  
Hall-voltage generator, small-signal amplifier, chopper stabilization, Schmitt trig-  
ger, and a current source output. Advanced BiCMOS wafer fabrication process-  
ing takes advantage of low-voltage requirements, component matching, very low  
input-offset errors and small component geometries.  
Package UA, 3-pin SIP  
Suffix ‘L-’ devices are rated for operation over a temperature range of –40°C  
to +150°C; suffix ‘E-’ devices are rated for operation over a temperature range  
of –40°C to +85°C. Two A1242 package styles provide magnetically optimized  
solutions for most applications. Package LH is a SOT23W, a miniature low-pro-  
file surface-mount package, while package UA is a three-lead ultra-mini SIP for  
through-hole mounting. Each package is available lead (Pb) free, with 100% matte  
tin plated leadframes.  
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Features and Benefits  
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Chopper stabilization  
– Superior temperature stability  
– Extremely low switchpoint drift  
– Insensitive to physical stress  
Reverse battery protection  
Solid-state reliability  
ABSOLUTE MAXIMUM RATINGS  
Supply Voltage, VCC ..........................................28 V  
Reverse-Supply Voltage, VRCC ........................–18 V  
Magnetic Flux Density, B .........................Unlimited  
Operating Temperature  
Ambient, TA, Range E..................–40ºC to 85ºC  
Ambient, TA, Range L................–40ºC to 150ºC  
Maximum Junction, TJ(max)........................165ºC  
Storage Temperature, TS ..................–65ºC to 170ºC  
Small size  
Robust EMC capability  
High ESD ratings (HBM)  
Allegro MicroSystems, Inc.  
115 Northeast Cutoff, Box 15036  
Worcester, Massachusetts 01615-0036 (508) 853-5000  
www.allegromicro.com  
A1242-DS  

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