ACS722LLCTR-20AB-T Hall Effect Sensor Unipolar 3.3V 8-Pin SOIC T/R

The

Allegro

ACS722

current

sensor

IC

is

an

economical

and

precise

solution

for

AC

or

DC

current

sensing

in

industrial,

commercial,

and

communications

systems.

The

small

package

is

ideal

for

space-constrained

applications

while

also

saving

costs

due

to

reduced

board

area.

Typical

applications

include

motor

control,

load

detection

and

management,

switched-mode

power

supplies,

and

overcurrent

fault

protection

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

the

integrated

Hall

IC

and

converted

into

a

proportional

voltage.

Device

accuracy

is

optimized

through

the

close

proximity

of

the

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

primary

copper

conduction

path

which

is

the

path

used

for

current

sensing.

The

internal

resistance

of

this

conductive

path

is

0.65

mΩ

typical,

providing

low

power

loss.The

ACS722LLCTR-05AB-T

is

provided

in

a

small,

low

profile

surface

mount

SOIC8

package.

The

leadframe

is

plated

with

100%

matte

tin

class='font-size-24

mb-3'>Key

Features

class='font-size-14

pl-3

ml-1

text-gray-110'>

Pin-selectable

band

width:

80

kHz

for

high

bandwidth

applications

or

20

kHz

for

low

noise

performance

Small

footprint,

low-profile

SOIC8

package

suitable

for

space-constrained

applications

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

Chopper

stabilization

results

in

extremely

stable

quiescent

output

voltage

Nearly

zero

magnetic

hysteresis

Ratiometric

output

from

supply

voltage

3

to

3.6

V,

single

supply

operation

Industry-leading

noise

performance

with

greatly

improved

bandwidth

through

proprietary

amplifier

and

filter

design

techniques

Small

footprint,

low-profile

SOIC8

package

suitable

for

space-constrained

applications

Sens(Typ)

at

VCC

=

3.3

V:

264

mV/A

class='font-size-24

mb-3'>

Technical

Attributes

Description

Value

Lead

Finish

Matte

Tin

Magnetic

Type

Unipolar

Maximum

Supply

Current

12

mA

Module/IC

Classification

IC

Mounting

Surface

Mount

Operating

Supply

Voltage

3.3

V

Operating

Temperature

-40

to

150

°C

Pin

Count

8

Product

Dimensions

4.9

x

3.9

x

1.5(Max)

Supplier

Package

SOIC