High Accuracy, Galvanically Isolated Current Sensor IC

with Small Footprint SOIC8 Package

ACS722

7

Allegro MicroSystems

955 Perimeter Road

Manchester, NH 03103-3353 U.S.A.

www.allegromicro.com

xLLCTR-5AB PERFORMANCE CHARACTERISTICS

: TA Range L, valid at TA = – 40°C to 150°C, VCC = 3.3 V,

unless otherwise specif ied

Characteristic

Symbol

Test Conditions

Min.

Typ.

Max.

Units

NOMINAL PERFORMANCE

Current Sensing Range

IPR

–5

–

5

A

Sensitivity

Sens

IPR(min) < IP < IPR(max)

–

264

–

mV/A

Zero Current Output Voltage

VIOUT(Q)

Bidirectional; IP = 0 A

–

VCC ×

0.5

–

V

ACCURACY PERFORMANCE

Sensitivity Error

Esens

TA = 25°C to 150°C; measured at IP = IPR(max)

–2

–

2

%

TA = –40°C to 25°C; ; measured at IP = IPR(max)

–

±2.5

–

%

Offset Voltage [1]

VOE

IP = 0 A; TA = 25°C to 150°C

–15

–

15

mV

IP = 0 A; TA = -40°C to 25°C

–

±20

–

mV

Total Output Error [2]

ETOT

IP = IPR(max), TA = 25°C to 150°C

–2.5

–

2.5

%

IP = IPR(max), TA = –40°C to 25°C

–

±3

–

%

LIFETIME DRIFT CHARACTERISTICS

Sensitivity Error Lifetime Drift

Esens_drift

–

±2

–

%

Total Output Error Lifetime

Drift

Etot_drift

–

±2

–

%

[1]

Offset Voltage does not incorporate any error due to external magnetic fields. See section: Impact of External Magnetic Fields.

[2]

Percentage of IP, with IP = IPR(max).