WMSIC Electronic Components

ALLEGRO ACS725LLCTR-50AB-T ACS725LLCTR

ModelACS725LLCTR-50AB-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 22+

Available for RFQ

Technical data

Product details

20 specifications

Core information

Product name
ALLEGRO ACS725LLCTR-50AB-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
ACS725LLCTR-50AB-T
Electronic Component
1
Package
8-SOIC
Electronic Component
120kHz
Electronic Component
Current Sensor
Electronic Component
0.001g
Electronic Component
26.4mV/A
Electronic Component
1
Features
Electronic Component
Electronic Component
BM0263674259
Operating Temperature
40℃~+150℃
Operating Voltage
3V~3.6V
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.

ACS725LLCTR-50AB-T 霍尔电流传感器产品概述

一、产品定位与核心功能

ACS725LLCTR-50AB-T是美国ALLEGRO公司推出的隔离式霍尔电流传感器,专为中功率AC/DC电流监测设计,核心功能是实现被测电路与控制电路的电气隔离,同时精准检测±50A范围内的双向电流,输出线性模拟电压信号,适配各类数字化控制系统。该产品凭借高隔离、宽带宽、低损耗等特性,广泛应用于工业、家电、新能源等领域的电流监测与控制场景,是替代传统分流器(无隔离)、互感器(体积大)的理想方案。

二、关键性能参数深度解析

1. 电流测量范围与双向兼容性

支持**±50A AC/DC双向电流检测**,覆盖中功率应用的典型电流需求(如小型伺服电机、低功率开关电源、电动自行车电池组等)。双向检测能力无需额外电路切换,可直接适配电机正反转、电池充放电等需监测正负电流的场景,简化系统设计。

2. 高灵敏度与线性输出

灵敏度为26.4mV/A,即每1A电流对应26.4mV的模拟输出电压,输出与被测电流呈严格线性关系(线性度优异)。该特性便于后端ADC(模数转换器)直接采样,无需复杂的非线性补偿电路,有效提升测量精度(典型精度达±1%)。

3. 宽带宽与快速响应

带宽达120kHz,响应时间仅4μs,可精准捕捉高频动态电流变化(如开关电源的瞬态电流、电机调速过程中的电流波动)。例如,针对开关频率50kHz的DC-DC转换器,120kHz带宽可完整还原电流波形,满足工业控制对快速电流反馈的需求。

4. 宽工作电压与低功耗

工作电压范围为3V~3.6V,兼容主流MCU(如STM32、ATmega系列)的供电电压,无需额外电压转换电路;同时功耗极低(典型工作电流<10mA),适合电池供电的便携式设备或低功耗系统设计。

5. 高隔离与低损耗

隔离电压达2400Vrms,满足UL、CE等安全认证要求,可有效隔离被测高压电路(如220V/380V工业电路)与低压控制电路,保障人员与设备安全;电流端电阻仅1.2mΩ,50A时功率损耗仅3W(I²R=50²×1.2mΩ),不影响被测系统的正常运行。

三、封装与电气特性说明

该产品采用8-SOIC封装(3.90mm宽),尺寸紧凑(与常见MCU引脚间距一致),适合高密度PCB布局,可节省电路板空间(尤其适配小型化设备)。电气特性方面:

  • 输出为单端模拟电压,无需差分放大,简化信号处理电路;
  • 工作温度范围为**-40℃~+150℃**,覆盖工业级环境温度需求(如户外光伏逆变器、工业控制柜),极端温度下仍能稳定输出。

四、典型应用场景

1. 工业电机控制

适配伺服电机、变频电机的电流闭环控制:双向检测支持电机正反转,120kHz带宽与4μs响应时间可快速捕捉电机启动、调速时的电流波动,避免过流损坏,提升电机控制精度(如工业机器人关节电机)。

2. 开关电源与电源管理

用于AC-DC、DC-DC转换器的输出电流监测:低损耗特性减少电源自身损耗,宽工作电压适配电源控制电路,可实现过载保护、输出电流调节、效率监测等功能(如服务器电源、LED驱动电源)。

3. 家电与白色家电

应用于变频空调、滚筒洗衣机等设备的电机电流控制:-40℃~+150℃宽温范围可适应家电的工作环境温度变化(如空调室外机的低温/高温场景),保障设备稳定运行。

4. 新能源领域

适配小型储能系统、电动自行车BMS(电池管理系统)的电流检测:双向检测支持电池充放电监测,高隔离电压保障电池系统与控制电路的安全隔离,避免高压串扰。

5. 工业自动化设备

用于PLC(可编程逻辑控制器)的电流监测模块:隔离特性保障控制电路与工业现场高压电路的安全,宽温范围适应工业现场的温度变化(如车间控制柜、物流分拣设备)。

五、可靠性与环境适应性评估

ACS725LLCTR-50AB-T依托ALLEGRO成熟的霍尔传感器技术,具备高可靠性:

  • 宽温范围覆盖工业、户外等极端环境,无零点漂移(典型值<±0.5%FS);
  • 2400Vrms隔离电压满足安全标准,长期工作无绝缘老化问题;
  • 低损耗与线性输出特性保障长期稳定工作,可有效降低系统维护成本(MTBF达10万小时以上)。

该产品平衡了精度、隔离、体积与成本,是中功率电流监测场景的高性价比选择。

Request for quote

Send RFQ

Use the form for single models, category sourcing, and multi-line BOM requirements.

Send your target model and quantity.

Product sourcing intelligence

Model, package, availability, and BOM fit reviewed before quotation.

WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.

Electronic component model and package intelligence review on an ESD-safe inspection bench

Model & package intelligence

Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.

BOM matching and alternative component comparison workstation with protected IC samples

BOM matching & alternatives

BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.

Electronic component sourcing availability dashboard with ESD-protected samples

Sourcing availability signal

Stock routes, quotation confidence, lead-time notes, and shipment feasibility are checked before sales follow-up.

Buyer sourcing scenarios

Examples of how common component sourcing requests are organized.

Typical RFQ scenarios based on the WMSIC form fields, catalog data, manual review steps, and shipment preparation workflow.

The buyer shares the full part number, package requirement, quantity, destination, and available product photos so the quotation can record the exact version under review.

Package confirmation Typical RFQ workflow

A multi-line BOM is organized into direct sourcing lines, lines that need package clarification, and lines where alternative-part review is permitted.

Mixed BOM triage Typical RFQ workflow

The original manufacturer part number, datasheet revision, application, critical limits, and acceptable changes are collected before possible candidates are discussed.

Obsolete-part review Typical RFQ workflow

Sample quantity, minimum packing, package format, target date, and courier destination are kept together in one RFQ conversation.

Small-batch request Typical RFQ workflow

Package photos, model markings, board context, and the quantity needed for repair help focus the sourcing review on the relevant version.

Repair batch evidence Typical RFQ workflow

When a suffix or package note is incomplete, the response records the open difference and requests buyer confirmation before procurement proceeds.

Model suffix clarification Typical RFQ workflow

Packing format, carton notes, invoice details, courier option, destination, and tracking handoff are coordinated around the confirmed order.

Export handoff Typical RFQ workflow

The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.

Replenishment inquiry Typical RFQ workflow

Related products

Packaged components ready for RFQ.