Datasheet > ACS72981ELRATR-100U3

ACS72981ELRATR-100U3

更新时间： 2024-02-03 18:56:30

品牌	Logo	应用领域
急速微 - ALLEGRO		/
页数	文件大小	规格书
54页	3584K
描述
Current Sensor IC with 200 Î¼Î© Current Conductor

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ACS72981xLR

High-Precision Linear Hall-Effect-Based

Current Sensor IC with 200 µΩ Current Conductor

FEATURES AND BENEFITS

DESCRIPTION

• AEC-Q100 automotive qualification

• High-bandwidth 250 kHz analog output

• Less than 2 μs output response time

• 3.3 V and 5 V supply operation

• Ultralow power loss: 200 μΩ internal conductor

resistance

• Industry-leading noise performance and increased

bandwidth through proprietary amplifier and filter design

techniques

• Greatly improved total output error through digitally

programmed and compensated gain and offset over the

full operating temperature range

• Small package size, with easy mounting capability

• Monolithic Hall IC for high reliability

• Output voltage proportional to AC or DC currents

• Factory-trimmed for accuracy

• Extremely stable zero amp output offset voltage over

temperature and lifetime

TheAllegro™ACS72981familyofcurrentsensorICsprovides

economicalandprecisesolutionsforACorDCcurrentsensing.

A 250 kHz bandwidth makes it ideal for motor control, load

detection and management, power supply and DC-to-DC

converter control, and inverter control. The <2 µs response

time enables overcurrent fault detection in safety-critical

applications.

The device consists of a precision, low-offset linear Hall

circuit 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

proportionalvoltage.Deviceaccuracyisoptimizedthroughthe

close proximity of the magnetic signal to the Hall transducer.

A precise, proportional output voltage is provided by the

low-offset, chopper-stabilized BiCMOS Hall IC, which is

programmed for accuracy at the factory. Proprietary digital

temperature compensation technology greatly improves the

zero output voltage and output sensitivity accuracy over

temperature and lifetime.

The output of the device increases when an increasing current

flows through the primary copper conduction path (from

terminal 5 to terminal 6), which is the path used for current

sampling. The internal resistance of this conductive path is

200μΩtypical,providinglowpowerlossandincreasingpower

density in the application.

PACKAGE:

7-pin PSOF package (suffix LR)

Thesensoremploysdifferentialsensingtechniquesthatvirtually

eliminate output disturbance due to common-mode interfering

magnetic field.

Not to scale

Continued on the next page…

ACS72981xLR

VIOUT

GND

IP+

V_OUT

C_L

I_P

Supply

C_BYP

0.1 µF

IP–

VCC

Typical Application

The ACS72981xLR outputs an analog signal, V_OUT, that varies linearly with the

bidirectional AC or DC primary sampled current, I_P, within the range specified.

ACS72981xLR-DS, Rev. 9

MCO-0000374

September 24, 2020

12 3 4 5 6 7...54

中文翻译

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与ACS72981ELRATR-100U3相关器件

型号	品牌	获取价格	描述	数据表
ACS72981ELRATR-100U5	ALLEGRO	获取价格	Current Sensor IC with 200 Î¼Î© Current Condu
ACS72981ELRATR-150B3	ALLEGRO	获取价格	Current Sensor IC with 200 Î¼Î© Current Condu
ACS72981ELRATR-150B5	ALLEGRO	获取价格	Current Sensor IC with 200 Î¼Î© Current Condu
ACS72981ELRATR-150U3	ALLEGRO	获取价格	Current Sensor IC with 200 Î¼Î© Current Condu
ACS72981ELRATR-150U5	ALLEGRO	获取价格	Current Sensor IC with 200 Î¼Î© Current Condu
ACS72981ELRATR-200B3	ALLEGRO	获取价格	Analog Circuit,
ACS72981ELRATR-200B5	ALLEGRO	获取价格	Analog Circuit,
ACS72981ELRATR-200U3	ALLEGRO	获取价格	Analog Circuit,
ACS72981ELRATR-200U5	ALLEGRO	获取价格	Analog Circuit,
ACS72981KLRATR-150B3	ALLEGRO	获取价格	Current Sensor IC with 200 Î¼Î© Current Condu

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