Datasheet > ACS781LLRTR-100B-T

ACS781LLRTR-100B-T

更新时间： 2024-11-12 00:55:51

品牌	Logo	应用领域
急速微 - ALLEGRO		/
页数	文件大小	规格书
22页	1201K
描述
Core-less, micro-sized, 100 A continuous current package

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ACS781xLR

High-Precision Linear Hall-Effect-Based

Current Sensor IC With 200 µΩ Current Conductor

FEATURES AND BENEFITS

DESCRIPTION

▪ꢀCore-less,ꢀmicro-sized,ꢀ100ꢀAꢀcontinuousꢀcurrentꢀpackage

▪ꢀUltra-lowꢀpowerꢀloss:ꢀ200ꢀµΩꢀinternalꢀconductorꢀ

resistance

The Allegro ACS781xLR is a fully integrated current sensor

linear IC in a new core-less package designed to senseAC and

DC currents up to 100 A. This automotive-grade, low-profile

(1.5 mm thick) sensor IC package has a very small footprint.

The Hall sensor technology also incorporates common-mode

field rejection to optimize performance in the presence of

interferingmagneticfieldsgeneratedbynearbycurrentcarrying

conductors.

▪ꢀImmunityꢀtoꢀcommon-modeꢀfieldꢀinterference

▪ꢀGreatlyꢀimprovedꢀtotalꢀoutputꢀerrorꢀthroughꢀdigitallyꢀ

programmed and compensated gain and offset over the full

operating temperature range

▪ꢀIndustry-leadingꢀnoiseꢀperformanceꢀthroughꢀproprietaryꢀ

amplifier and filter design techniques

▪ꢀIntegratedꢀshieldꢀgreatlyꢀreducesꢀcapacitiveꢀcouplingꢀfromꢀ

current conductor to die due to high dV/dt signals, and

prevents offset drift in high-side, high-voltage applications

▪ꢀMonolithicꢀHallꢀICꢀforꢀhighꢀreliability

Thedeviceconsistsofaprecision,low-offsetlinearHallcircuit

with a copper conduction path located near the die. Applied

current flowing through this copper conduction path generates

a magnetic field which the Hall IC converts into a proportional

voltage. Device accuracy is optimized through the close

proximity of the primary conductor to the Hall transducer and

factory programming of the sensitivity and quiescent output

voltage at the Allegro factory.

▪ꢀ3ꢀtoꢀ3.6ꢀV,ꢀsingleꢀsupplyꢀoperation

▪ꢀ120ꢀkHzꢀtypicalꢀbandwidth

▪ꢀ3.6ꢀµsꢀoutputꢀriseꢀtimeꢀinꢀresponseꢀtoꢀstepꢀinputꢀcurrent

▪ꢀOutputꢀvoltageꢀproportionalꢀtoꢀACꢀorꢀDCꢀcurrentsꢀ

▪ꢀFactory-trimmedꢀforꢀaccuracy

▪ꢀExtremelyꢀstableꢀquiescentꢀoutputꢀvoltage

▪ꢀAEC-Q100ꢀautomotiveꢀqualification

Chopper-stabilized signal path and digital temperature

compensation technology also contribute to the stability of the

device across the operating temperature range.

High-level immunity to current conductor dV/dt and stray

electric fields, offered byAllegro proprietary integrated shield

technology for low-output voltage ripple and low-offset drift

in high-side, high-voltage applications.

PACKAGE:

7-pin PSOF package (suffix LR)

Theoutputofthedevicehasapositiveslope(>V_CC/2)whenan

increasingcurrentflowsthroughtheprimarycopperconduction

Continued on the next page…

Not to scale

ACS781xLR

R_F

C_F

VOUT

GND

IP+

V_OUT

I_P

3.3 V

C_BYP

0.1 µF

IP–

VCC

Typical Application

Application 1: The ACS781xLR outputs an analog signal, V_OUT, that varies linearly with the bidirectional AC or DC primary

current, I_P, within the range specified. C_Fis for optimal noise management, with values that depend on the application.

ACS781xLR-DS

12 3 4 5 6 7...22

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与ACS781LLRTR-100B-T相关器件

型号	品牌	获取价格	描述	数据表
ACS781LLRTR-100U-T	ALLEGRO	获取价格	Core-less, micro-sized, 100 A continuous current package
ACS781XLR	ALLEGRO	获取价格	Core-less, micro-sized, 100 A continuous current package
ACS7HXB37C15	VECTRON	获取价格	Temperature Compensated Crystal Oscillators
ACS7HYA17C10	VECTRON	获取价格	Temperature Compensated Crystal Oscillators
ACS8509	SEMTECH	获取价格	Synchronous Equipment Timing Source for SONET or SDH Network Elements
ACS8509T	SEMTECH	获取价格	Synchronous Equipment Timing Source for SONET or SDH Network Elements
ACS8510	SEMTECH	获取价格	Synchronous Equipment Timing Source for SONET or SDH Network Elements
ACS8510_03	SEMTECH	获取价格	Synchronous Equipment Timing Source for SONET or SDH Network Elements
ACS8510REV2.1	SEMTECH	获取价格	Synchronous Equipment Timing Source for SONET or SDH Network Elements
ACS8510REV2.1SETS	ETC	获取价格	Synchronous Equipment Timing Source for SONET or SDH Network Elements

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