Littelfuse磁性传感器产品组合扩展 - 高精度TMR角度传感器

Release time:2025-08-26
author:AMEYA360
source:Littelfuse
reading:724

  Littelfuse宣布推出两款基于TMR的新型磁角度传感器LF53466和LF53464,可以在恶劣环境中以最小的热漂移提供高精度的0-360°角测量。

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  两款传感器均采用隧道磁阻(TMR)技术,采用双推挽式惠斯通电桥配置,各有四个高灵敏度传感元件,可沿X轴和Y轴进行精确的角度检测。这些传感器具有卓越的热稳定性、广泛的电源电压兼容性和更高的测量精度,是霍尔效应器件的有力替代选项。

  LF53466采用标准TSSOP8封装,提供精密角度感应,在200-800Gs磁场范围内误差小于0.8°。该产品非常适合机械焊点坚固且易于检查的工业和汽车应用,例如方向盘角度传感器、踏板位置传感器和非接触式电位器。

  LF53464采用紧凑型LGA8L封装,可在0.6°以下实现更大的精度角误差,并且具有更大的感应距离,因此可以兼容体积更小、成本更低的磁铁。同时也非常适合空间有限的应用,如旋转编码器、旋钮和阀门位置感应,以及消费类设备,包括电动工具和电器。

  主要功能与特色

  0-360°角度测量,带X-Y轴感应;

  TMR技术,可提高磁灵敏度;

  低角度误差:<0.8°(LF53466TMR),<0.6°(LF53464TMR);

  出色的热漂移补偿,确保性能稳定;

  宽供电电压范围,可灵活设计系统;

  差分输出,确保稳定的信号完整性;

  两种封装选择:TSSOP8(LF53466-08TMR)便于组装;LGA8L(LF53464-08TMR)适用于小型化设计。

  传感器全球产品经理Julius Venckus表示:“这些新型TMR全极传感器打开了通往更广阔工业、移动和消费市场的大门,显著扩展了Littelfuse磁传感产品组合。“LF53466和LF53464结合了高精度、热稳定性和封装灵活性,增强了需要速度控制和精确角度检测的应用。”

  目标市场和应用

  工业自动化和机器人技术:用于工厂设备和智能机械的旋转位置传感器、绝对角度检测以及机械臂或纵杆控制;

  机动和非公路车辆:电动自行车、2/3轮车以及建筑或越野电动汽车的转向角、踏板位置和电机控制;

  消费类和智能设备:电动工具、智能恒温器和电器中的紧凑型传感,包括旋钮和阀门位置传感,可提供直观的用户界面。

  精密控制系统:高分辨率旋转编码器、非接触式电位器和角度传感器,用于电机反馈、阀门驱动和HMI(人机界面)应用。

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