参数资料
型号: A1148EUA-T
厂商: Allegro Microsystems Inc
文件页数: 2/13页
文件大小: 454K
描述: IC SWITCH HALL EFFECT UNI 3-SIP
产品培训模块: Current Sensor
标准包装: 500
传感范围: 80G 跳闸,10G 释放
类型: 单极开关
电源电压: 3.5 V ~ 24 V
电流 - 电源: 5mA
输出类型: 数字,开路集电极
特点: 稳压电压
工作温度: -40°C ~ 85°C
封装/外壳: 3-SIP
供应商设备封装: 3-SIP
包装: 散装
Description
The A1147 and A1148 devices are two-wire, unipolar, Hall
effect switches that are factory-programmed at end-of-line to
optimize ultrasensitive magnetic switchpoint accuracy. These
devices use a patented high frequency chopper-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.
Commonly found in a number of automotive applications,
these switches are utilized in sensing seat track position, seat
belt buckle presence, hood/trunk latching, and shift selector
position. Two-wire unipolar switches, such as the A1147
and A1148, 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. These devices also
A1147-DS, Rev. 12
Features and Benefits
? Chopper stabilization
?Low switchpoint drift over operating
  temperature range
?Low sensitivity to stress
? Factory programmed at end-of-line for optimized
switchpoints
? On-chip protection
?Supply transient protection
?Reverse-battery protection
?On-board voltage regulator
?3.5 to 24 V operation
Low Current Ultrasensitive Two-Wire Chopper-Stabilized
Unipolar Hall Effect Switches
Continued on the next page&
Functional Block Diagram
Not to scale
Packages: 3 pin SOT23W (suffix LH), and
3 pin SIP (suffix UA)
A1147 and A1148
Amp
Regulator
Low-Pass
Filter
GND
VCC
GND
Package UA Only
0.01 uF
V+
Clock/Logic
To All Subcircuits
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相关代理商/技术参数
参数描述
A1148EUATI 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:Low Current Ultrasensitive Two-Wire Chopper-Stabilized Unipolar Hall Effect Switches
A1148EUATI-T 制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:Low Current Ultrasensitive Two-Wire Chopper-Stabilized Unipolar Hall Effect Switches
A1148LLHLT 功能描述:IC SWITCH HALL EFFECT UNI SOT-23 RoHS:否 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
A1148LLHLT-T 功能描述:IC SWITCH HALL EFFECT UNI SOT-23 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
A1148LUA 功能描述:IC SWITCH HALL EFFECT UNI 3-SIP RoHS:否 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