ACS712ELCTR-05B-T Allegro, ACS712ELCTR-05B-T Datasheet

ACS712ELCTR-05B-T

Manufacturer Part Number

ACS712ELCTR-05B-T

Description

Manufacturer

Allegro

Datasheets

1.ACS712.pdf (14 pages)

2.ACS712ELCTR-05B-T.pdf (12 pages)

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Bonase Electronics (HK) Co., Limited

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Euro Chip Distribution

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Features and Benefits

▪ Low-noise analog signal path

▪ Device bandwidth is set via the new FILTER pin

▪ 5 μs output rise time in response to step input current

▪ 80 kHz bandwidth

▪ Total output error 1.5% at T

▪ Small footprint, low-profile SOIC8 package

▪ 1.2 mΩ internal conductor resistance

▪ 2.1 kV

▪ 5.0 V, single supply operation

▪ 66 to 185 mV/A output sensitivity

▪ Output voltage proportional to AC or DC currents

▪ Factory-trimmed for accuracy

▪ Extremely stable output offset voltage

▪ Nearly zero magnetic hysteresis

▪ Ratiometric output from supply voltage

Package: 8 Lead SOIC (suffix LC)

ACS712-DS, Rev. 7

with 2.1 kVRMS Voltage Isolation and a Low-Resistance Current Conductor

Approximate Scale 1:1

RMS

minimum isolation voltage from pins 1-4 to pins 5-8

TÜV America

Certificate Number:

U8V 06 05 54214 010

= 25°C

Fully Integrated, Hall Effect-Based Linear Current Sensor

Application 1. The ACS712 outputs an analog signal, V

that varies linearly with the uni- or bi-directional AC or DC

primary sensed current, I

is recommended for noise management, with values that

depend on the application.

Typical Application

IP+

IP–

ACS712

FILTER

VIOUT

GND

VCC

, within the range specified. C

Description

The Allegro

solutions for AC or DC current sensing in industrial,

commercial, and communications systems. The device

package allows for easy implementation by the customer.

Typical applications include motor control, load detection and

management, switched-mode power supplies, and overcurrent

fault protection.

The device consists of a precise, low-offset, 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. A

precise, proportional voltage is provided by the low-offset,

chopper-stabilized BiCMOS Hall IC, which is programmed

for accuracy after packaging.

The output of the device has a positive slope (>V

when an increasing current flows through the primary copper

conduction path (from pins 1 and 2, to pins 3 and 4), which

is the path used for current sensing. The internal resistance of

this conductive path is 1.2 mΩ typical, providing low power

Continued on the next page…

1 nF

OUT

+5 V

0.1 μF

BYP

ACS712 provides economical and precise

OUT

ACS712

IOUT(Q)

)

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