WMSIC Electronic Components

ALLEGRO A1230LLTR-T A1230LLTR

ModelA1230LLTR-T
Package8-SOIC
BrandALLEGRO
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 24+

Available for RFQ

Technical data

Product details

20 specifications

Core information

Product name
ALLEGRO A1230LLTR-T
Type
ALLEGRO
Unit
Electronic Component
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
ALLEGRO
Electronic Component
A1230LLTR-T
Electronic Component
1
Package
8-SOIC
Electronic Component
Hall Switch
Electronic Component
0.197g
Electronic Component
1
Electronic Component
BM0264533318
Operating Temperature
40℃~+150℃
Operating Voltage
3.3V~18V
Operating Current
3.5mA
Magnetic
±3mT
Electronic Component
Electronic Component
Electronic Component
3000

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

A1230LLTR-T 产品概述

一、产品简介

A1230LLTR-T 是美国 ALLEGRO(埃戈罗)推出的一款双极(bipolar)磁性开关(磁敏开关 / 霍尔开关),以 8-SOIC(0.154",3.90 mm 宽)封装提供。该器件为数字式磁场开关,针对需要可靠开/关检测的应用而设计,具有宽工作电压、低待机电流和耐高温特性,适合工业与汽车级环境使用。

二、主要特性

  • 磁场灵敏度:±3 mT(典型,双极触发),能在北/南两极磁场均可切换输出。
  • 工作电压:3.3 V ~ 18 V,直接适配 3.3 V 与 5 V 系统,并能耐受更高总线电压。
  • 工作电流:典型 3.5 mA,静态功耗低。
  • 工作温度范围:-40 ℃ ~ +150 ℃,满足严苛环境与汽车级温度要求。
  • 封装:8-SOIC(0.154",3.90 mm 宽),便于 PCB 布局与波峰/回流焊接。
  • 输出类型:数字开关输出(可与上拉电阻配合直接驱动 MCU 引脚)。

三、功能描述

A1230LLTR-T 基于霍尔效应原理,在外加磁场超过某一阈值(典型 ±3 mT)时改变输出状态,具有明显的迟滞(hysteresis),避免因微弱磁扰导致抖动或错误切换。双极(bipolar)特性意味着在一极触发而另一极消除时输出恢复,适用于门磁、位置检测与轴向运动检测等场合。

四、典型电气与环境参数(依据提供基础参数)

  • 静态/工作电压范围:3.3 V ~ 18 V
  • 典型工作电流:3.5 mA
  • 磁场切换阈值:±3 mT(典型)
  • 工作温度:-40 ℃ ~ +150 ℃
    注:实际应用应参照完整数据手册中的最小/最大限值、迟滞量及温漂特性进行设计校核。

五、典型应用场景

  • 汽车门/盖/座椅位置检测(在车辆供电范围内稳定工作)
  • 电机转子定位与电子角度检测(用于限位或零位检测)
  • 家电开关检测(洗衣机、冰箱等门状态检测)
  • 工业位置/限位检测、线性/旋转位移开关
  • 防盗/安防磁感应开关

六、封装与机械注意事项

A1230LLTR-T 采用 8-SOIC 封装(0.154",3.90 mm 宽),引脚排列适合自动贴片与回流焊流程。建议在 PCB 设计时:

  • 在芯片附近安排 0.1 μF 陶瓷旁路电容贴近 VCC 与 GND 引脚,降低电源噪声影响。
  • 针对磁性传感器,保持传感器与目标磁体的相对位置稳定,避免机械应力或外壳磁屏蔽造成测量误差。
  • 设计时留意器件顶部和周边金属材料对磁场的影响,必要时进行实装测试验证触发距离与角度。

七、设计建议与可靠性注意

  • 上拉电阻:若器件输出为开集电极/漏型,建议使用 4.7 kΩ ~ 47 kΩ 的上拉电阻,典型值 10 kΩ。
  • 去抖与滤波:对快速机械振动或脉冲磁干扰,可在上拉点加 RC 低通滤波(例如上拉 + 1 nF ~ 10 nF),或在 MCU 端做软件滤波/去抖。
  • EMC 与地线:在高噪声环境下,保持良好接地与电源滤波,避免共模干扰导致误触发。
  • 温度与漂移:在极限温度下磁灵敏度可能漂移,关键量测场合应做温度校准或留裕量。
  • 焊接工艺:遵循推荐的回流温度曲线与最大引脚温度,避免超温损伤封装或内部封装材料。

八、快速选型提示

若系统需要:

  • 宽电压输入(含 3.3 V 与 12 V/24 V 总线)、高温工作以及双极磁响应,A1230LLTR-T 是合适选择;
  • 若需更高灵敏度、模拟输出或不同迟滞特性,可参考 ALLEGRO 的其它霍尔传感器系列以满足差异化设计需求。

总结:A1230LLTR-T 是一款面向耐用性与宽电压应用的双极数字磁性开关,适合需要可靠磁场开/关检测的工业与汽车级应用。设计时注意器件磁场特性、封装布置、电源去耦与抗干扰措施,可获得稳定、耐久的检测性能。

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