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参数资料
| 型号： | A3230LLHLT-T |
| 厂商： | Allegro Microsystems Inc |
| 文件页数： | 2/14页 |
| 文件大小： | 512K |
| 描述： | IC SW HALL EFFECT CHOPPER SOT23W |
| 产品培训模块： | Current Sensor |
| 标准包装： | 1 |
| 传感范围： | 25G 跳闸，-25G 释放 |
| 类型： | 双极卡锁 |
| 电源电压： | 3.6 V ~ 24 V |
| 电流 - 电源： | 3.5mA |
| 电流 - 输出（最大）： | 60mA |
| 输出类型： | 数字式，开漏极 |
| 特点： | 稳压电压 |
| 工作温度： | -40°C ~ 150°C |
| 封装/外壳： | SOT-23W |
| 供应商设备封装： | SOT-23W |
| 包装： | 标准包装 |
| 其它名称： | 620-1044-6 |
Description
The A3230 Hall-effect sensor IC is a temperature stable,
stress-resistant bipolar switch. This device is the most sensitive
Hall-effect device in the Allegro
"
bipolar switch family and is
intended for ring-magnet sensing. Superior high-temperature
performance is made possible through an Allegro patented
dynamic offset cancellation that utilizes chopper-stabilization.
This method reduces the offset voltage normally caused by
device overmolding, temperature dependencies, and thermal
stress.
The A3230 includes the following on a single silicon chip:
a 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 takes advantage of low-voltage
requirements, component matching, very low input-offset
errors, and small component geometries.
The A3230 Hall-effect bipolar switch turns on in a south
polarity magnetic field of sufficient strength and switches
off in a north polarity magnetic field of sufficient strength.
Because the output state is not defined if the magnetic field is
3230-DS, Rev. 9
Features and Benefits
? 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 Hall-Effect Bipolar Switch
Continued on the next page&
Functional Block Diagram
Not to scale
A3230
Regulator
GND
VCC
VOUT
Control
Current Limit
<1?
To All Subcircuits
Amp
Packages: 3 pin SOT23W (suffix LH), and
3 pin SIP (suffix UA)
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相关代理商/技术参数 |
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| A3230LUA-T | 功能描述:IC SW HALL EFFECT CHOPPER 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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