Quality Standards and Environmental Certifications

ACS780xLR:带 200 μΩ 电流导体的高精确、线性、基于霍尔效应的电流传感器 IC

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Description

Allegro ACS780xLR 是全集成电流传感器线性 IC。该系列器件采用全新的无芯封装设计，最高可感应 100 A 交直流电流。该汽车级扁平（1.5 mm 厚）传感器 IC 封装覆盖区极小。

霍尔传感器技术还加入了共模场抑制功能，能够在附近电流导体引起干扰磁场时优化性能。

该器件包含一个低偏置的精密线性霍尔电路，其铜制导电通路靠近晶片的表面。流过该电流路径的电流会产生一个磁场，该磁场可由霍尔 IC 转换成同比例的电压输出。通过将初级导体靠近霍尔传感器，并在 Allegro 工厂对灵敏度和静态输出电压进行厂家编程，实现器件精确度的优化。

稳定斩波信号路径和数字温度补偿技术同样也能提高器件在整个工作温度范围的稳定性。Allegro 专有的集成屏蔽技术提供的对电流导体 dV/dt 信号和杂散电场的高耐受力，确保高侧、高电压应用中的低输出电压纹波和低偏置漂移。

当增加铜制初级导电通路（用于电流采样）的电流时（由端子 5 到端子 6），器件的输出为正斜率 (>VCC / 2)。该导电通路的内电阻典型值是 200 μΩ，功率损耗较低。

铜线的厚度允许器件在高过电流条件下运行。电流路径的接线端与信号引线（引脚 1 到 4， 和引脚 7）之间电气隔离，使器件可以在初级导体出现高达 100 V 峰值电压条件下安全工作。

器件在出厂装运前已完全校准。ACS780xLR 系列是无铅产品。所有的引线均镀以 100% 雾锡，封装内无任何铅存在。大尺寸引脚框由无氧铜制成。

Top Features

  • 无芯、微型、100 A 持续电流封装
  • 超低功率损耗：内部传导电阻 200 µΩ
  • 免于共模场干扰
  • 通过在完整的操作温度范围内进行数字编程及增益和偏置补偿，大幅改善总输出错误率
  • 凭借专有的放大器和滤波器设计工艺实现行业领先的噪声性能
  • 集成屏蔽可大幅减少因高 dV/dt 信号导致电流导体至晶片的电容耦合，并可防止高侧、高压应用中的偏置漂移。
  • 高可靠性的单片霍尔 IC
  • 4.5 至 5.5 V、单电源工作
  • 120 kHz 典型带宽
  • 对应步进输入电流,输出上升时间为3.6μs
  • 输出电压与交流或直流电流成比例
  • 出厂时已经校准，确保精确度
  • 极稳定的静态输出电压
  • 符合 AEC-Q100 汽车标准
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Part Number Specifications and Availability

Part Number Package Type Temperature RoHS
Compliant		 Part Composition /
RoHS Data		 Comments Samples Check Stock
ACS780KLSTR-150B-T n/a -20°C to 85°C Yes View Data Contact your
local sales rep		 Check
Distributor Stock
ACS780KLSTR-150U-T n/a -20°C to 85°C Yes View Data Contact your
local sales rep		 Check
Distributor Stock
ACS780LLSTR-050U-T n/a -20°C to 85°C Yes View Data Contact your
local sales rep		 Check
Distributor Stock
ACS780LLSTR-100B-T n/a -20°C to 85°C Yes View Data Contact your
local sales rep		 Check
Distributor Stock
ACS780LLSTR-100U-T n/a -20°C to 85°C Yes View Data Contact your
local sales rep		 Check
Distributor Stock
ACS780KLRTR-150B-T 7-lead SOT -40°C to 125°C Yes View Data Contact your
local sales rep		 Check
Distributor Stock
ACS780KLRTR-150U-T 7-lead SOT -40°C to 125°C Yes View Data Contact your
local sales rep		 Check
Distributor Stock
ASEK780KLR-150B-T DEMO BOARD -40°C to 125°C No -- Contact your
local sales rep		 Check
Distributor Stock
ASEK780KLR-150U-T DEMO BOARD -40°C to 125°C No -- Contact your
local sales rep		 Check
Distributor Stock
ASEK780KLS-150B-T DEMO BOARD -40°C to 125°C No -- Contact your
local sales rep		 Check
Distributor Stock
ACS780LLRTR-050B-T 7-lead SOT -40°C to 150°C Yes View Data Contact your
local sales rep		 Check
Distributor Stock
ACS780LLRTR-050U-T 7-lead SOT -40°C to 150°C Yes View Data Contact your
local sales rep		 Check
Distributor Stock
ACS780LLRTR-100B-T 7-lead SOT -40°C to 150°C Yes View Data Contact your
local sales rep		 Check
Distributor Stock
ACS780LLRTR-100U-T 7-lead SOT -40°C to 150°C Yes View Data Contact your
local sales rep		 Check
Distributor Stock
ASEK780LLR-100B-T DEMO BOARD -40°C to 150°C No -- Contact your
local sales rep		 Check
Distributor Stock
ASEK780LLR-100U-T DEMO BOARD -40°C to 150°C No -- Contact your
local sales rep		 Check
Distributor Stock

Allegro 的产品不允许在任何由于 Allegro 产品的合理故障造成人身伤害的装置或系统中使用，包括但不限于生命支持装置或系统。

Packaging

ACS780 封装

LR 封装 .stp 模型

Design Support Tools

设计支持工具

Allegro MicroSystems，LLC提供Gerber文件仅供参考。任何材料，信息或说明均按原样提供，不附带任何形式的担保。用户有责任针对用户的特定应用优化任何印刷电路板（PCB）布局以及任何组件的选择。

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