WMSIC Electronic Components

ALLEGRO A1395SEHLT-T A1395SEHLT

ModelA1395SEHLT-T
Package6-PowerWFDFN
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 Date code within 2 years

Available for RFQ

Technical data

Product details

17 specifications

Core information

Product name
ALLEGRO A1395SEHLT-T
Type
ALLEGRO
Minimum package
3000

Technical parameters

Electronic Component
ALLEGRO
Electronic Component
A1395SEHLT-T
Electronic Component
1
Package
6-PowerWFDFN
Electronic Component
Linear Hall Sensor
Electronic Component
1.1g
Electronic Component
10mV/Gs
Electronic Component
1
Features
Built-in Temperature Sensor; Output Voltage positions
Electronic Component
BM0265124914
Operating Temperature
20℃~+85℃
Operating Voltage
2.5V~3.5V
Operating Current
3.2mA
Electronic Component
3000

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

A1395SEHLT-T 线性霍尔效应传感器IC产品概述

A1395SEHLT-T是美国埃戈罗(ALLEGRO)推出的微功耗线性霍尔效应传感器IC,针对低功耗、小体积、高精度磁场检测需求设计,具备三态输出与用户可选睡眠模式,适配工业、消费电子、汽车电子等多领域应用场景。

一、产品核心定位与设计背景

随着电子设备向小型化、低功耗方向发展,传统开关型霍尔传感器因输出单一、功耗较高,难以满足需要连续磁场检测的场景(如电流传感、角度位移检测);而普通线性霍尔又存在功耗过高、不适配电池供电设备的问题。A1395SEHLT-T在此背景下推出,通过CMOS微功耗架构整合线性输出精度与低功耗特性,同时加入三态输出与睡眠模式,解决了“精度与功耗难以兼顾”的行业痛点,成为电池供电设备、空间受限系统的理想磁场检测方案。

二、关键参数与性能特性

A1395SEHLT-T的核心参数精准匹配低功耗应用需求,关键性能如下:

  • 线性输出精度:灵敏度为10mV/Gs,输出电压与被测磁场强度呈严格线性比例,线性度偏差控制在行业领先水平,可直接用于精确磁场量化计算;
  • 电源与功耗:工作电压范围2.5V~3.5V(兼容3V主流系统),典型工作电流仅3.2mA(微功耗级);支持睡眠模式切换,静态功耗大幅降低,有效延长电池供电设备的续航时间;
  • 温度适应性:工作温度范围覆盖-20℃~+85℃,符合工业级环境要求,可稳定工作在户外、车间等温差较大的场景;
  • 封装规格:采用6-PowerWFDFN封装,尺寸紧凑(典型1.0mm×1.0mm×0.5mm),无铅环保(RoHS compliant),兼容标准表面贴装回流焊工艺,适合高密度PCB布局。

三、核心功能特点

A1395SEHLT-T的功能设计聚焦“灵活适配+低功耗优化”,核心优势包括:

  • 三态输出设计:输出包含高电平、低电平、高阻态三种状态,支持多传感器共享同一总线,减少系统布线复杂度;睡眠模式下自动进入高阻态,进一步降低系统静态功耗;
  • 用户可选睡眠模式:通过外部引脚配置可随时切换睡眠/工作模式,无需复杂软件控制,适合对响应速度要求不高但需长期待机的场景(如智能门锁、蓝牙耳机充电盒);
  • 抗干扰能力:内置噪声抑制电路与电磁干扰(EMI)防护设计,可有效过滤环境中的杂波信号,保证在电机、电源等强干扰环境下的输出稳定性;
  • 宽磁场检测范围:支持±100Gs左右的磁场检测(未饱和状态),可覆盖大多数位置、电流、角度检测场景的磁场强度需求。

四、典型应用场景

A1395SEHLT-T的特性使其适配多领域应用,典型场景包括:

  • 电池供电设备的位置检测:智能手表表带扣开合检测、蓝牙耳机充电盒状态检测、便携式医疗设备的部件位置识别(低功耗延长续航);
  • 工业电流传感:通过检测导线周围磁场间接测量电流(非接触式,避免高压危险),应用于电机驱动、电源管理模块、光伏逆变器等;
  • 角度/位移检测:汽车仪表盘指针位置校准、打印机打印头行程检测、智能家居窗帘轨道位移监测(线性输出可精确计算角度/位移);
  • 汽车电子辅助:车门锁状态检测、座椅位置调节反馈、后视镜角度检测(工作温度范围适配车载环境)。

五、使用注意事项

为保证A1395SEHLT-T的稳定工作,系统设计需注意以下要点:

  1. 电源匹配:避免电源电压超过3.5V或低于2.5V,建议使用3V稳压电源供电,防止过压损坏或欠压导致输出异常;
  2. 睡眠模式配置:睡眠控制引脚需连接至MCU或外部开关,避免悬空导致误触发;切换睡眠模式时需确保磁场检测需求已暂停;
  3. 磁场范围控制:被测磁场强度需控制在±100Gs以内,超过饱和磁场会导致输出非线性,影响检测精度;
  4. 布线优化:输出引脚远离高频信号线(如SPI、I2C总线),电源引脚就近放置去耦电容(0.1μF),减少噪声干扰。

A1395SEHLT-T凭借微功耗、线性精度、三态输出与睡眠模式的组合优势,成为当前磁场检测领域的高性价比方案,可有效降低系统功耗与体积,提升产品竞争力。

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