Description
The A1184 device is a standard, two-wire, unipolar, Hall effect
switch. The operate point, B
OP
, can be field-programmed,
after final packaging of the device and placement into the
application. This advanced feature allows the optimization of
the device switching performance, by effectively accounting
for variations caused by mounting tolerances for the device
and the target magnet.
This device is produced on the Allegro MicroSystems advanced
BiCMOS wafer fabrication process, which implements a
patented, high-frequency, chopper-stabilization technique
that achieves magnetic stability and eliminates the offsets
that are inherent in single-element devices exposed to harsh
application environments. Commonly found in a number of
automotive applications, the A1184 is utilized in sensing: seat
track position, seat belt buckle presence, hood/trunk latching,
and shift selector position.
Two-wire unipolar switches are particularly advantageous
in price-sensitive applications, because they require one
less wire than the more traditional open-collector output
switches. Additionally, the system designer gains inherent
diagnostics because output current normally flows in either
A1184-DS, Rev. 8
Features and Benefits
? Chopper stabilization
?Low switchpoint drift over operating
temperature range
?Low sensitivity to stress
? Field programmable for optimized switchpoints
? On-chip protection
?Supply transient protection
?Reverse-battery protection
?On-board voltage regulator
?3.5 to 24 V operation
Standard Two-Wire Field-Programmable 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)
A1184
Amp
Regulator
Program/Lock
Low-Pass
Filter
GND
VCC
GND
Programming
Logic
Package UA Only
0.01 uF
V+
Offset
Clock/Logic
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相关代理商/技术参数
A1185
制造商:Quick 功能描述:TSOJ 13 X 10 NOZZLE FOR QUICK957/957D
A118-5
制造商:APEM 功能描述:
A1185_06
制造商:ALLEGRO 制造商全称:Allegro MicroSystems 功能描述:Ultrasensitive Two-Wire Field-Programmable Chopper-Stabilized Unipolar Hall-Effect Switches
A1185B
制造商:HAKKO Corporation 功能描述:
A1185ELHLT
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
A1185ELHLT-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
A1185EUA
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
A1185EUA-T
功能描述:IC SWITCH HALL EFFECT UNI 3-SIP 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