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A1304:采用小型超薄表面安装封装且带模拟输出的线性霍尔效应传感器 IC

Functional Block Diagram

A1304 ECAD Model
A1304 数据表
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Description

Top Features

线性霍尔效应传感器的新应用要求中等精确度和更小的封装尺寸。Allegro A1304 线性霍尔效应传感器 IC 专为满足上述两种要求而设计。这款温度稳定型器件采用小型表面安装封装 (SOT23-W)。

成比例的线性霍尔效应传感器能提供与施加的磁场成比例的电压输出，并拥有大约相当于 50% 电源电压的静态输出电压。

每个 BiCMOS 单片电路都集成了霍尔元件、偏移和灵敏度修正电路（以修正霍尔元件变化）、小型信号高增益放大器和专有动态偏移取消技术。

A1304 传感器 IC 采用 3 引脚表面安装 SOT-23W 式封装（LH 后缀）。该封装为无铅封装，采用 100% 雾锡电镀引脚框。

  • 3.3 V 电源电压
  • Allegro 厂方编程偏移及灵敏度
  • 小型封装
  • 高带宽、低噪音模拟输出
  • 高速斩波方案，可最大限度减少工作温度范围内的 QVO 漂移
  • 温度稳定型静态电压输出及灵敏度
  • 温度循环后可实现精确的恢复
  • 超宽的环境温度范围：–40°℃ 至 85°℃
  • 抗机械应力
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Documentation

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Documents Found: 32
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Application Note
January 31, 2023
PCB Ground Plane Optimization for Coreless Current Sensor Applications