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ALLEGRO ACS724LLCTR-10AU-T ACS724LLCTR
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
20
specifications
Core information
- Product name
- ALLEGRO ACS724LLCTR-10AU-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
- ACS724LLCTR-10AU-T
- Electronic Component
- 1
- Package
- SOIC-8
- Electronic Component
- 120kHz
- Electronic Component
- Current Sensor
- Electronic Component
- 0.18g
- Electronic Component
- 400mV/A
- Electronic Component
- 1
- Features
- positions
- Electronic Component
- BM0142658898
- Operating Temperature
- 40℃~+150℃
- Operating Voltage
- 4.5V~5.5V
- Current Resistor
- 1.2mΩ
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
ACS724LLCTR-10AU-T 产品概述
一、产品简介
ACS724LLCTR-10AU-T 是来自美国 Allegro 的隔离式电流传感器，工作电压标称 5V（允许范围 4.5V–5.5V），采用 SOIC-8 封装。器件基于霍尔效应隔离测量技术，在高压侧与信号侧之间提供高达 2400 Vrms 的隔离能力，适用于对直流或低频脉动电流的精确监测与保护。
二、主要参数（要点）
- 电流测量范围：10 A（额定量程）
- 灵敏度：400 mV/A（输出电压/电流）
- 工作电压：4.5V ~ 5.5V，典型 5V 供电
- 隔离电压：2400 Vrms
- 带宽：120 kHz（-3 dB 带宽，决定响应频率上限）
- 响应时间（tr）：约 3 μs
- 电流端电阻（导通损耗）：1.2 mΩ（低插入损耗）
- 工作温度：-40℃ ~ +150℃
- 封装：SOIC-8
注：基础资料中对“双向检测”项存在矛盾（既标注“不支持”，又列为“功能特性：双向检测”）。Typical ACS724 系列器件输出在零电流时约为 VCC/2，因此可实现双向（正/负）电流检测；若对极性敏感，请以器件最终出厂数据手册为准。
三、工作原理与功能特性
ACS724LLCTR 核心为隔离霍尔元件与信号调理电路，通过低阻抗电流通道产生与被测电流成正比的磁场，霍尔元件感测后输出相应电压。灵敏度 400 mV/A 表明每变化 1 A，输出变化约 0.4 V。器件具备上电复位功能，供电启动后输出复位到中点（零电流基准），便于系统自校验与故障检测。
四、典型应用场景
- 电机驱动与逆变器电流监测
- 开关电源和UPS 的过流保护与隔离测量
- 电池管理系统（BMS）与充放电监控
- 工业控制回路与电流采样需高共模隔离的系统
五、工程使用建议
- 电源去耦：靠近器件放置 0.1 μF 陶瓷电容与 1 μF 旁路电容，保证稳定的 5V 供电。
- 输出滤波：为兼顾 3 μs 响应与 120 kHz 带宽，可使用小时间常数 RC 滤波器，避免过度滤波导致响应延迟。
- 热管理与布局：尽量减小导流端走线电阻与热阻，1.2 mΩ 虽低，但在大电流下仍会产生热量；布线应保证散热与良好接地。
- 校准与偏置：双向测量时以 VCC/2 为零点，考虑温漂和偏置误差的校准方案。
- 安全隔离测试：系统集成时需遵守隔离等级要求并进行实际耐压测试以验证 2400 Vrms 隔离性能。
该器件以其高隔离、较宽带宽和低插入损耗，适合需高速响应和安全隔离的电流测量场合。具体精度、零点漂移、PSR 等详细参数请参照 Allegro 官方数据手册以获得最终设计数据。
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