ACS711EEXLT-31AB-T datasheet, PDF

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ACS711EEXLT-31AB-T: Descriptionsensor current 31a 3.3V 12-qfn; CategoryThe sensor; File Size1MB，18 Pages; ManufacturerAllegro; Websitehttp://www.allegromicro.com/; Environmental Compliance

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ACS711EEXLT-31AB-T Overview

sensor current 31a 3.3V 12-qfn

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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:

□ 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 ¯ ¯ ¯ ¯ ¯ trips and

atches at 100% of full-scale

FAU

current

Low-noise analog signal path

100 kHz bandwidth

Small footprint, low-profile SOIC8 and QFN packages

3 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

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

of the copper conductor allows survival of the device at up to

Continued on the next page…

•

PACKAGES:

8-pin SOICN

with internally fused path

(LC package)

Not to scale

12-contact QFN

3 mm × 3 mm × 0.75 mm

(EX package)

Typical Application

+3.3 V

IP+

VIOUT

VCC

BYP

0.1

μF

LOAD

Application 1. The ACS711 outputs

an analog signal, V

IOUT

, that varies

linearly with the bi-directional AC or

DC primary current, I

, within the

¯ L¯

range specified. The ¯ ¯¯¯ ¯ pin trips

FAU¯ T

when I

reaches ±100% of its full-

scale current.

ACS711

IP–

FAULT

GND

ACS711A-DS, Rev. 4

June 23, 2017

ACS711EEXLT-31AB-T Related Products

	ACS711EEXLT-31AB-T	ACS711EEXLT-15AB-T	ASEK711KEX-15AB-J-DK	ASEK711KEX-31AB-J-DK	ACS711KLCTR-12AB-T
Description	sensor current 31a 3.3V 12-qfn	sensor current 15.5A 3.3V 12-qfn	EVAL BOARD FOR ACS711	EVAL BOARD FOR ACS711

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