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| 型号： | A3245EUA-T |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 2/13页 |
| 文件大小： | 506K |
| 描述： | IC SW HALL EFFECT OMNI 3-SIP |
| 产品培训模块： | Current Sensor |
| 标准包装： | 500 |
| 传感范围： | ±55G 跳闸，±6G 释放 |
| 类型： | 全极开关 |
| 电源电压： | 3.6 V ~ 24 V |
| 电流 - 电源： | 3.5mA |
| 输出类型： | 数字式，开漏极 |
| 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 A3245 integrated circuit is an omnipolar, ultrasensitive
Hall-effect switch with a digital output. This device has an
integrated regulator permitting operation to 24 V, making
it the first omnipolar switch available for operation to 24 V.
This device is especially suited for operation over extended
temperature ranges, up to +150癈. Superior high-temperature
performance is made possible through an Allegro
?/DIV>
patented
dynamic offset cancellation, which reduces the residual offset
voltage normally caused by device overmolding, temperature
excursions, and thermal stress.
The A3245 Hall-effect switch includes the following on a
single silicon chip: voltage regulator, Hall-voltage generator,
small-signal amplifier, chopper stabilization, Schmitt trigger,
and a short circuit protected open-drain output. Advanced
BiCMOS wafer fabrication processing is used to take advantage
of low-voltage requirements, component matching, very low
input-offset errors, and small component geometries.
The omnipolar operation of the A3245 allows activation with
either a north or a south polarity field of sufficient strength.
In the absence of a magnetic field, the output is off. This
A3245-DS, Rev. 12
Features and Benefits
? Omnipolar operation
? Chopper stabilization
?Superior temperature stability
?Extremely low switchpoint drift
?Insensitive to physical stress
? Reverse battery protection
? Output short circuit protection
? Solid state reliability
? Small size
? Robust EMC capability
? High ESD ratings (HBM)
Chopper-Stabilized Omnipolar Hall-Effect Switches
Continued on the next page&
Functional Block Diagram
Not to scale
Packages: 3 pin SOT23W (suffix LH)
A3245
Regulator
GND
VCC
VOUT
Control
Current Limit
<1?
To All Subcircuits
Amp
Amp
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相关代理商/技术参数 |
参数描述 |
|---|---|
| A3245EUA-T | 制造商:Allegro MicroSystems 功能描述:Hall Effect Switch IC |
| A3245LLHLT | 功能描述:IC SW HALL EFFECT OMNI SOT23W 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 |
| A3245LLHLT-T | 功能描述:IC SW HALL EFFECT OMNI SOT23W 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 |
| A3245LUA | 功能描述:IC SW HALL EFFECT OMNI 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 |
| A3245LUA-T | 功能描述:IC SW HALL EFFECT OMNI 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 |
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