ACS710KLATR-12CB-T Allegro, ACS710KLATR-12CB-T Datasheet

ACS710KLATR-12CB-T

Manufacturer Part Number

ACS710KLATR-12CB-T

Description

Manufacturer

Allegro

Datasheets

1.ACS710.pdf (15 pages)

2.ACS710KLATR-12CB-T.pdf (15 pages)

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Features and Benefits

▪ Industry-leading noise performance with greatly

▪ Small footprint package suitable for space-constrained

▪ 1 mΩ primary conductor resistance for low power loss

▪ High isolation voltage, suitable for line-powered

▪ User-adjustable Overcurrent Fault level

▪ Overcurrent Fault signal typically responds to an

▪ Integrated shield virtually eliminates capacitive

▪ Filter pin capacitor improves resolution in low

▪ 3 to 5.5 V, single supply operation

▪ Factory trimmed sensitivity and quiescent output

▪ Chopper stabilization results in extremely stable

▪ Ratiometric output from supply voltage

Package: 16-pin SOIC Hall Effect IC

Package (suffix LA)

ACS710-DS

improved bandwidth through proprietary amplifier and

filter design techniques

applications

overcurrent condition in < 2 μs

coupling from current conductor to die due to high

dV/dt voltage transients

bandwidth applications

voltage

quiescent output voltage

IP+

IP–

Current Sensor with Integrated Overcurrent Detection

ACS710

Approximate Scale 1:1

FAULT_EN

FILTER

FAULT

VIOUT

VZCR

GND

VOC

VCC

120 kHz Bandwidth, High Voltage Isolation

Fault_EN

IOUT

1 nF

Typical Application

0.1 μF

Description

The Allegro

precise means for current sensing applications in industrial,

commercial, and communications systems. The device is offered

in a small footprint surface mount package that allows easy

implementation in customer applications.

The ACS710 consists of a precision linear Hall sensor integrated

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 by Allegro proprietary integrated shield

technology, guarantees low ripple at output and low offset drift

in high-side, high voltage applications.

The voltage on the Overcurrent Input (VOC pin) allows

customers to define an overcurrent fault threshold for the

device. When the current flowing through the copper conduction

path (between the IP+ and IP– pins) exceeds this threshold,

Continued on the next page…

, R

ACS710 current sensor provides economical and

Sets resistor divider reference for V

Noise and bandwidth limiting filter capacitor

Fault delay setting capacitor, 22 nF maximum

Use of capacitor required

Use of resistor optional, 330 kΩ recommended.

If used, resistor must be connected between

¯ F ¯ ¯ A ¯ U ¯ ¯ L ¯ ¯ T ¯ pin and V

ACS710

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