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ALLEGRO A1304ELHLX-T A1304ELHLX
Configuration
1 options
Configuration
24+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- ALLEGRO A1304ELHLX-T
- Type
- SOT-23W
- Minimum package
- 10000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- ALLEGRO
- Electronic Component
- A1304ELHLX-T
- Electronic Component
- 1
- Package
- SOT-23W
- Electronic Component
- Linear Hall Sensor
- Electronic Component
- 0.04g
- Electronic Component
- 4mV/Gs
- Linear
- ±1.5%
- Electronic Component
- 1
- Features
- Electronic Component
- Electronic Component
- BM0230814924
- Operating Temperature
- 40℃~+85℃
- Operating Voltage
- 3V~3.6V
- Operating Current
- 7.7mA
- Magnetic
- ±37.5mT
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
A1304ELHLX-T 产品概述
一、产品简介
A1304ELHLX-T 是美国 ALLEGRO（埃戈罗）推出的一款线性霍尔效应传感器，采用 SOT-23W 三脚小封装，适用于空间受限的磁场检测与位置感知场合。器件提供模拟电压输出，可直接连接到 ADC 或后端放大/滤波电路，便于在嵌入式系统中实现非接触式位置、速度与接近检测。
二、主要电气参数
- 磁场测量范围：±37.5 mT（约 ±375 G）
- 灵敏度：4 mV/Gs（每高斯输出变化）
- 灵敏度温漂：±0.12%/℃（典型）
- 线性度：±1.5%（满量程线性误差）
- 工作电压：3.0 V ~ 3.6 V（典型 3.3 V 应用最常见）
- 工作电流：7.7 mA（静态典型）
- 工作温度：-40 ℃ ~ +85 ℃
- 封装：SOT-23W，3 引脚
（注：无磁场时输出电压与供电电压相关，典型约为 VCC/2；具体数值与引脚定义请参阅原厂数据手册）
三、功能与特点
- 高灵敏度（4 mV/Gs），适合弱磁场检测与细微位置变化测量；
- 良好线性度（±1.5%），便于直接用数学模型或标定转换为位置信息；
- 低灵敏度温漂（±0.12%/℃），提高环境温度变化下的稳定性；
- 小型 SOT-23W 封装，便于表面贴装与空间受限的应用；
- 低电压工作，兼容 3.3V 系统并能在电池供电场景中使用。
四、典型应用
- 无刷直流电机（BLDC）相位/位置检测；
- 精密位置与距离传感（磁编码器、滑动/旋转位置检测）；
- 接近开关与安全互锁检测；
- 电流传感（配合磁环/隔磁结构）；
- 工业自动化、消费电子与汽车电子的磁场检测模块（需符合相应认证时参考原厂文档）。
五、使用与布局建议
- 电源端并联 0.1 μF 陶瓷去耦电容靠近 VCC-GND 引脚，抑制供电噪声；
- 输出端如与 ADC 相连，可在输入端加 RC 低通滤波（示例：1 kΩ 与 10 nF）以滤除高频噪声，但需注意滤波对带宽的影响；
- 避免在封装附近放置强磁材料或大电流导线，减少寄生磁场干扰；
- 固定与安装时注意应力应避免直接压在 IC 包封体上以免影响性能；
- 系统级标定可补偿零偏与温漂，提升测量精度。
六、选型与注意事项
在选型时请核对原厂完整数据手册以获取引脚排列、典型电气特性曲线、最大极限值和热特性。若用于汽车或高可靠性场合，核查器件是否具备相应的质量等级与认证。对极性响应（对垂直于芯片表面的磁场分量敏感）和磁滞特性有特殊要求的应用，建议在系统级进行实际磁场扫描与标定。
七、结论
A1304ELHLX-T 以其高灵敏度、良好线性和小型封装，适合工业、消费与汽车电子中对精确磁场/位置测量的应用。在电源去耦、合理布局与系统标定的配合下，可发挥稳定可靠的磁场检测能力。如需最终设计与认证资料，请参考 ALLEGRO 官方数据手册与典型应用文档。
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