Datasheet > ACS722KMATR-10AB-T

ACS722KMATR-10AB-T

更新时间： 2024-01-24 23:55:31

品牌	Logo	应用领域
急速微 - ALLEGRO		/
页数	文件大小	规格书
17页	586K
描述
High Accuracy, Hall-effect Based Current Sensor IC in High Isolation SOIC16 Package

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ACS722KMA

High Accuracy, Hall-effect Based Current Sensor

IC in High Isolation SOIC16 Package

DESCRIPTION

FEATURES AND BENEFITS

• Patented integrated digital temperature compensation

circuitry allows for near closed loop accuracy over

temperature in an open loop sensor

TheAllegro^™ACS722 current sensor IC is an economical and

precise solution for AC or DC current sensing in industrial,

commercial, and communication systems. The small package

is ideal for space constrained applications while also saving

costs due to reduced board area. Typical applications include

motorcontrol,loaddetectionandmanagement,switched-mode

power supplies, and overcurrent fault protection.

• UL60950-1 (ed. 2) certified

□ Dielectric Strength Voltage = 4.8 kVrms

□ Basic Isolation Working Voltage = 1097 Vrms

□ Reinforced Isolation Working Voltage = 565 Vrms

• Industry-leading noise performance with greatly

improved bandwidth through proprietary amplifier and

filter design techniques

• Pin-selectable band width: 80 kHz for high bandwidth

applications or 20 kHz for low noise performance

• 0.85 mΩ primary conductor resistance for low power

loss and high inrush current withstand capability

• Low-profile SOIC16 package suitable for space-

constrained applications

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

theintegratedHallICandconvertedintoaproportionalvoltage.

Deviceaccuracyisoptimizedthroughthecloseproximityofthe

magnetic field to the Hall transducer. A precise, proportional

voltage is provided by the low-offset, chopper-stabilized

BiCMOS Hall IC, which includes Allegro’s patented digital

temperature compensation, resulting in extremely accurate

performance over temperature. The output of the device has

a positive slope when an increasing current flows through the

primarycopperconductionpath(from pins 1through4, topins

5 through 8), which is the path used for current sensing. The

internal resistance of this conductive path is 0.85 mΩ typical,

providing low power loss.

• 3 to 3.6 V, single supply operation

• Output voltage proportional to AC or DC current

• Factory-trimmed sensitivity and quiescent output voltage

for improved accuracy

Continued on the next page…

TÜV America

Certificate Number:

U8V 14 11 54214 030

CB 14 11 54214 029

CB Certiﬁcate Number:

US-22339-A1-UL

The terminals of the conductive path are electrically isolated

from the sensor leads (pins 9 through 16). This allows the

ACS722currentsensorICtobeusedinhigh-sidecurrentsense

applicationswithouttheuseofhigh-sidedifferentialamplifiers

or other costly isolation techniques.

Package: 16-pin SOICW (suffix MA)

Continued on the next page…

Approximate Scale 1:1

ACS722

IP+

GND

The ACS722 outputs an

analog signal, V_IOUT, that

changes, proportionally, with

the bidirectional AC or DC

primary sensed current, I_P,

within the specified measure-

ment range. The BW_SEL pin

can be used to select one of

the two bandwidths to opti-

mize the noise performance.

Grounding the BW_SEL pin

puts the part in the high

+I_P

BW_SEL

VIOUT

I_P

C_L

IP–

–I_P

VCC

C_BYPASS

bandwidth (80 kHz) mode.

0.1 mF

Typical Application

ACS722-DS, Rev 1

12 3 4 5 6 7...17

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与ACS722KMATR-10AB-T相关器件

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ACS722LLCTR-05AB-T2	ALLEGRO	获取价格	High Accuracy, Galvanically Isolated Current Sensor IC With Small Footprint SOIC8 Package
ACS722LLCTR-10AB-T2	ALLEGRO	获取价格	High Accuracy, Galvanically Isolated Current Sensor IC With Small Footprint SOIC8 Package
ACS722LLCTR-10AU-T	ALLEGRO	获取价格	High Accuracy, Galvanically Isolated Current Sensor IC With Small Footprint SOIC8 Package
ACS722LLCTR-10AU-T2	ALLEGRO	获取价格	High Accuracy, Galvanically Isolated Current Sensor IC With Small Footprint SOIC8 Package
ACS722LLCTR-20AB-T2	ALLEGRO	获取价格	High Accuracy, Galvanically Isolated Current Sensor IC With Small Footprint SOIC8 Package
ACS722LLCTR-20AU-T2	ALLEGRO	获取价格	High Accuracy, Galvanically Isolated Current Sensor IC With Small Footprint SOIC8 Package
ACS722LLCTR-40AB-T2	ALLEGRO	获取价格	High Accuracy, Galvanically Isolated Current Sensor IC With Small Footprint SOIC8 Package
ACS722LLCTR-40AU-T2	ALLEGRO	获取价格	High Accuracy, Galvanically Isolated Current Sensor IC With Small Footprint SOIC8 Package

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