WMSIC Electronic Components

ALLEGRO ACS770LCB-050U-PFF-T ACS770LCB

ModelACS770LCB-050U-PFF-T
Package5-CB,FORMED-LEAD,PFF
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 ACS770LCB-050U-PFF-T
Type
5-CB, FORMED-LEAD, PFF
Unit
Electronic Component
Minimum package
34 管

Technical parameters

Electronic Component
Electronic Component
Electronic Component
Electronic Component
Electronic Component
ALLEGRO
Electronic Component
ACS770LCB-050U-PFF-T
Electronic Component
1
Package
5-CB, PFF
Electronic Component
120kHz
Electronic Component
Current Sensor
Electronic Component
7.11g
Electronic Component
80mV/A
Electronic Component
1
Features
positions
Electronic Component
BM0264356243
Operating Temperature
40℃~+150℃
Operating Voltage
5V
Current
10mA

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

ACS770LCB-050U-PFF-T 产品概述

一、概述

ACS770LCB-050U-PFF-T 是美国 ALLEGRO 推出的高精度电流传感器,面向直流大电流检测场合。该器件采用霍尔效应原理,提供与被测电流成比例的模拟电压输出,额定测量范围为 50A,工作电压为 5V,器件本体与导流端具有高达 700Vrms 的绝缘能力,适合工业电源、马达驱动与功率管理等应用。

二、主要电气参数

  • 测量范围:50 A(直流)
  • 工作电压:5 V
  • 灵敏度:80 mV/A(输出电压相对于电流的线性比)
  • 隔离电压:700 Vrms
  • 带宽:120 kHz(适应快速电流变化与瞬态响应)
  • 响应时间(tr):4.6 μs
  • 电流端电阻:0.1 mΩ(极低压降,减少系统功耗与热量)
  • 待机电流:10 mA
  • 工作温度:-40 ℃ ~ +150 ℃
  • 双向检测:不支持(用于单向电流测量)
  • 功能特性:上电复位、欠压锁定(提高系统可靠性)

三、封装与机械特性

封装形式为 5-CB 成形引线,PFF。该结构便于通过孔或插件安装,导流端设计确保低阻抗通路,适合高电流母线或厚线连接的电路布局。封装耐高温性能良好,可在苛刻环境下长期工作。

四、典型应用场景

  • 直流电机与无刷电机驱动电流检测
  • 开关电源与电池管理系统(BMS)的过流监测
  • 逆变器与电能变换器的输出/输入电流测量
  • 电流保护、限流、能耗统计与故障检测等工业控制场景

五、使用建议与布板要点

  • 在电源引脚靠近器件位置放置去耦电容(如 0.1 μF 陶瓷),抑制高频噪声并保证稳定输出。
  • 输出端若需提高抗干扰,可串联小阻抗滤波或采用差分放大器处理;注意滤波不应显著影响带宽和响应时间。
  • 布线时确保被测导体紧靠传感器导流通路,避免多余回路面积以降低磁场干扰。
  • 器件带有欠压锁定和上电复位功能,系统上电顺序应保证稳定的 5V 电源,以获得可靠的输出基准。
  • 由于为非双向检测器件,系统设计中需确保电流方向与传感器规格一致或采用前置电路实现偏置。

六、总结

ACS770LCB-050U-PFF-T 以其 50A 测量能力、80 mV/A 的高灵敏度、极低的电流端电阻及 700Vrms 的隔离性能,适合要求高精度、低压降和快速响应的电流监测应用。结合内置的上电复位与欠压保护功能,可简化系统设计并提高可靠性。选择时请结合具体应用的测量方向与带宽需求,合理布局与滤波以发挥器件最佳性能。

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