Datasheet > ACS710

ACS710

更新时间： 2024-01-11 15:30:09

品牌	Logo	应用领域
急速微 - ALLEGRO		传感器
页数	文件大小	规格书
22页	459K
描述
120 kHz Bandwidth, High Voltage Isolation Current Sensor with Integrated Overcurrent Detection

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ACS710 数据手册

ACS710

120 kHz Bandwidth, High Voltage Isolation

Current Sensor with Integrated Overcurrent Detection

Features and Benefits

Description

▪Industry-leading noise performance with greatly improved

bandwidth through proprietary amplifier and filter design

techniques

The Allegro^™ACS710 current sensor provides economical

andprecisemeansforcurrentsensingapplicationsinindustrial,

commercial,andcommunicationssystems.Thedeviceisoffered

in a small footprint surface mount package that allows easy

implementation in customer applications.

▪Small footprint package suitable for space-constrained

applications

▪1 mꢀ primary conductor resistance for low power loss

▪High isolation voltage, suitable for line-powered

applications

▪User-adjustable Overcurrent Fault level

▪Overcurrent Fault signal typically responds to an

overcurrent condition in < 2 μs

▪Integrated shield virtually eliminates capacitive coupling

from current conductor to die due to high dV/dt voltage

transients

▪Filter pin capacitor improves resolution in low bandwidth

applications

TheACS710consistsofaprecisionlinearHallsensorintegrated

circuit with a copper conduction path located near the surface

of the silicon die. Applied current flows through the copper

conduction path, and the analog output voltage from the Hall

sensor linearly tracks the magnetic field generated by the

applied current. The accuracy of the ACS710 is maximized

with this patented packaging configuration because the Hall

element is situated in extremely close proximity to the current

to be measured.

High level immunity to current conductor dV/dt and stray

electric fields, offered byAllegro proprietary integrated shield

technology, results in low ripple on the output and low offset

drift in high-side, high voltage applications.

▪3 to 5.5 V, single supply operation

▪Factory trimmed sensitivity and quiescent output voltage

▪Chopper stabilization results in extremely stable quiescent

output voltage

The voltage on the Overcurrent Input (VOC pin) allows

customerstodefineanovercurrentfaultthresholdforthedevice.

When the current flowing through the copper conduction path

(betweentheIP+andIP–pins)exceedsthisthreshold, theopen

drain Overcurrent Fault pin will transition to a logic low state.

Factory programming of the linear Hall sensor inside of the

ACS710 results in exceptional accuracy in both analog and

digital output signals.

▪Ratiometric output from supply voltage

Package: 16-pin SOIC Hall Effect IC

Package (suffix LA)

The internal resistance of the copper path used for current

sensing is typically 1 mΩ, for low power loss.Also, the current

conduction path is electrically isolated from the low voltage

Approximate Scale 1:1

Continued on the next page…

Typical Application Circuit

V_CC

Fault_EN

R_H

IP+

IP–

FAULT_EN

VOC

R_H, R_LSets resistor divider reference for V_OC

ACS710

C_F

C_OC

Noise and bandwidth limiting filter capacitor

Fault delay setting capacitor, 22 nF maximum

Use of capacitor required

R_L

VCC

FAULT

VIOUT

FILTER

VZCR

GND

R_PU

I_P

0.1 μF

V_IOUT

Use of resistor optional, 330 kΩ recommended.

If used, resistor must be connected between

¯¯¯¯¯¯¯¯¯

FAULT pin and V_CC

1 nF

ACS710-DS, Rev. 8

12 3 4 5 6 7...22

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与ACS710相关器件

型号	品牌	获取价格	描述	数据表
ACS71020KMABTR-015B5-SPI	ALLEGRO	获取价格	Power Supply Management Circuit,
ACS71020KMABTR-030B3-I2C	ALLEGRO	获取价格	Power Supply Management Circuit,
ACS71020KMABTR-030B3-SPI	ALLEGRO	获取价格	Power Supply Management Circuit,
ACS710KLATR-10BB-T	ALLEGRO	获取价格	Analog Circuit, 1 Func, BICMOS, PDSO16, SOIC-16
ACS710KLATR-12CB-NL-T	ALLEGRO	获取价格	Analog Circuit, 1 Func, BICMOS, PDSO16, SOIC-16
ACS710KLATR-12CB-T	AVAGO	获取价格	120 kHz Bandwidth, High Voltage Isolation Current Sensor with Integrated Overcurrent Detec
ACS710KLATR-12CB-T	ALLEGRO	获取价格	Analog Circuit, 1 Func, BICMOS, PDSO16, SOIC-16
ACS710KLATR-25CB-NL-T	ALLEGRO	获取价格	Analog Circuit, 1 Func, BICMOS, PDSO16, SOIC-16
ACS710KLATR-25CB-T	AVAGO	获取价格	120 kHz Bandwidth, High Voltage Isolation Current Sensor with Integrated Overcurrent Detec
ACS710KLATR-25CB-T	ALLEGRO	获取价格	Analog Circuit, 1 Func, BICMOS, PDSO16, SOIC-16

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