3.0V~5.5V工作的线性电流霍尔传感器
ACS711
Hall Effect Linear Current Sensor with Overcurrent
Fault Output for <100 V Isolation Applications
Features and Benefits
No external sense resistor required; single package solution Reduced Power Loss:
Description
The Allegro® ACS711 provides economical and precise solutions for AC or DC current sensing in <100 V audio, communications systems, and white goods. The device package allows for easy implementation by the customer. Typical applications include circuit protection, current monitoring, and motor and inverter control.
The device consists of a linear Hall sensor circuit with a copper conduction path located near the surface of the die. Applied current flowing through this copper conduction path generates a magnetic field which is sensed by the integrated Hall IC and converted into a proportional voltage. Device accuracy is optimized through the close proximity of the magnetic signal to the Hall transducer.
The output of the device has a positive slope proportional to the current flow from IP+ to IP– (pins 1 and 2, to pins 3 and 4). The internal resistance of this conductive path is 0.6 mΩ for the EX package, and 1.2 mΩ for the LC package, providing a non-intrusive measurement interface that saves power in applications that require energy efficiency.
The ACS711 is optimized for low-side current sensing applications, although the terminals of the conductive path are electrically isolated from the sensor IC leads, providing sufficient internal creepage and clearance dimensions for a low AC or DC working voltage applications. The thickness
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0.6 mΩ internal conductor resistance on EX package 1.2 mΩ internal conductor resistance on LC package
Economical low- and high-side current sensing Output voltage proportional to AC or DC currents
±12.5 A and ±25 A full scale sensing ranges on LC package ±15.5 A and ±31 A full scale sensing ranges on EX package
¯¯¯¯ Overcurrent ¯F ¯A ¯U ¯L ¯T trips and latches at 100% of full-scale current
Low-noise analog signal path 100 kHz bandwidth
Small footprint, low-profile SOIC8 and QFN packages 3.0 to 5.5 V, single supply operation
Integrated electrostatic shield for output stability Factory-trimmed for accuracy
Extremely stable output offset voltage Zero magnetic hysteresis
Ratiometric output from supply voltage
Packages:
8-pin SOICN
with internally fused path
(LC package)
12-contact QFN3 mm × 3 mm × 0.75 mm
(EX package)
Approximate Scale 1:1
Typical Application
Application 1. The ACS711 outputs an analog signal, VIOUT , that varies linearly with the
¯¯¯¯bi-directional AC or DC primary current, IP , within the range specified. The ¯F ¯A ¯U ¯L ¯T pin trips
when I reaches ±100% of its full-scale current.
Product Data Sheet GSK2126458 1086062-66-9 HY-10297 505.50 C25H17F2N5O...ACS Chem Biol. 2013 Oct 18;8(10):2145-50. Caution: Not fully tested....
LX7101_1192189-69-7_DataSheet_MedChemExpress_医药卫生_专业资料。Product Data...ACS Medicinal Chemistry y Letters ( (2015), ) 6(1), ( ) 84-88. ...
ACS711 我采用的是型号 ACS711KLCTR-12AB-T,电流测量范围-12.5A—+12.5A,温度范 围-40℃—125℃,灵敏度为 110mv/A。 官方 datasheet 中有这样一句话 :...
Product Data Sheet GSK2126458 1086062-66-9 HY-10297 505.50 C25H17F2N5O...ACS Chem Biol. 2013 Oct 18;8(10):2145-50. Caution: Not fully tested....
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