WMSIC Electronic Components

ALLEGRO ACS723LLCTR-05AB-T ACS723LLCTR

ModelACS723LLCTR-05AB-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 25+

Available for RFQ

Technical data

Product details

20 specifications

Core information

Product name
ALLEGRO ACS723LLCTR-05AB-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
ACS723LLCTR-05AB-T
Electronic Component
1
Package
8-SOIC
Electronic Component
80kHz;20kHz
Electronic Component
Current Sensor
Electronic Component
0.001g
Electronic Component
400mV/A
Electronic Component
1
Features
Electronic Component
Electronic Component
BM0257710278
Operating Temperature
40℃~+150℃
Operating Voltage
5V
Current Resistor
0.65mΩ

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

ACS723LLCTR-05AB-T 产品概述

一、产品简介

ACS723LLCTR-05AB-T 是美国 ALLEGRO(埃戈罗)推出的一款高精度、低阻抗、双向电流传感器,采用基于霍尔效应的集成芯片设计并封装为 8 引脚 SOIC。该器件在 5V 工作电压下可实现 ±5A 量程的 AC/DC 电流测量,输出为与电源中点偏置的模拟电压,便于后端模拟或 ADC 采集。器件提供 2400Vrms 的隔离能力,适合对高压电路进行安全隔离测量。

二、主要参数与特性

  • 测量范围:±5 A(双向电流检测,支持正负方向)
  • 工作电压:5 V
  • 灵敏度:400 mV/A(典型)
  • 隔离耐压:2400 Vrms(器件本体实现导体与敏感测量电路之间的电气隔离)
  • 工作温度:-40 ℃ ~ +150 ℃
  • 电流端电阻(导体电阻):约 0.65 mΩ(导通损耗低)
  • 封装:8 引脚 SOIC,适合表面贴装(SMT)

三、功能与工作原理

器件通过在封装内集成的磁通导向结构和霍尔传感器,在线路电流产生磁场时测量该磁场并转换为与电流成比例的电压信号。输出在无电流时通常偏置于 VCC/2(约 2.5V),正负电流分别使输出上升或下降,输出与电流成线性关系,灵敏度为 400 mV/A。低电流端电阻(0.65 mΩ)保证在大电流通过时的功耗与压降很小,适合需要低插损的场景。

四、典型应用场景

  • 电源管理与电流监控:电源模块、DC-DC 转换器、UPS、逆变器的电流检测与过流保护。
  • 电机驱动与控制:直流电机、步进电机的电流反馈与保护。
  • 电池管理系统(BMS):充放电电流测量与均衡控制监测。
  • 工业与家电:伺服驱动、空调、洗衣机等功率电器的实时电流监控。
  • 安全隔离测量:需实现电气隔离的高压测量场合,利用器件的隔离等级提高系统安全性。

五、封装与使用注意

ACS723LLCTR-05AB-T 提供 8-SOIC 表面贴装封装,便于自动化贴片与回流焊工艺。实际使用时建议注意以下要点:

  1. 在 VCC 处并联去耦电容(如 0.1 μF + 1 μF 附近)以抑制电源噪声,改善测量稳定性;
  2. 输出端可根据系统噪声与带宽要求加 RC 滤波以减少高频干扰;
  3. 保持传感器周围强磁场源的距离,以免影响测量精度;
  4. 考虑热管理与布局,器件允许工作温度上限为 +150 ℃,但实际 PCB 温升可能影响长期稳定性;
  5. 严格遵循 PCB 针脚接地与信号路径设计,确保隔离性能发挥。

六、选型建议与优势总结

ACS723LLCTR-05AB-T 适合需要精准、低损耗且带有电气隔离的中等电流测量场合。其主要优势在于:高灵敏度(400 mV/A)带来较高的分辨率、极低的导通电阻降低系统功耗、2400Vrms 隔离提升安全性以及宽温度范围适应工业环境。选型时请根据系统带宽、精度要求及环境电磁干扰情况,合理配置滤波与去耦,确保器件在目标应用中发挥稳定可靠的测量性能。

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