1 MHz Bandwidth, Galvanically Isolated Current Sensor IC

in Small Footprint SOIC8 Package

ACS730

2

Allegro MicroSystems, LLC

115 Northeast Cutoff

Worcester, Massachusetts 01615-0036 U.S.A.

1.508.853.5000; www.allegromicro.com

SELECTION GUIDE

Part Number

Optimized

(A)

Sens(Typ)

(mV/A)

(°C)

ACS730KLCTR-20AB-T

±20

100

–40 to 125

Tape and reel, 3000 pieces per reel

ACS730KLCTR-40AB-T

±40

50

ACS730KLCTR-50AB-T

±50

40

1

2

Contact Allegro for additional packing options.

Thermal Characteristics

Characteristic

Symbol

Value

Units

Package Thermal Resistance

(Junction to Ambient)

Mounted on the Allegro 85-xxxx evaluation board with

and 2, and to pins 3 and 4, with thermal vias connecting the

layers. Performance values include the power consumed by

23

°C/W

Package Thermal Resistance

(Junction to Lead)

Mounted on the Allegro ASEK722 evaluation board.

5

°C/W

3

Additional thermal information available on the Allegro website.

4

Further details on the board are available from the Frequently Asked Questions document on our website. Further information about board design and thermal performance

also can be found in the Applications Information section of this datasheet.

Characteristic

Symbol

Notes

Value

Units

Dielectric Strength Test Voltage

Agency type-tested for 60 seconds per UL 60950-1

(edition 2); production-tested at 1500 VRMS for 1 second,

in accordance with UL 60950-1 (edition 2)

2400

Working Voltage for Basic Isolation

Maximum approved working voltage for basic (single)

isolation according to UL 60950-1 (edition 2)

150

Clearance

Minimum distance through air from IP leads to signal leads

1.6

mm

Creepage

Minimum distance along package body from IP leads to

signal leads

1.6

mm

1

Pending UL certification.

2

Higher working voltages, up to 420 Vpk/Vdc and 297 Vrms are possible if the tie-bars on the side of the package are conformal-coated, effectively increasing the creepage

and clearance of the package to around 3.9 mm.

Absolute Maximum Ratings

Characteristic

Symbol

Notes

Rating

Units

Supply Voltage

6

V

Reverse Supply Voltage

–0.1

V

Output Voltage

6

V

Reverse Output Voltage

–0.1

V

Operating Ambient Temperature

Range K

–40 to 125

°C

Junction Temperature

165

°C

Storage Temperature

–65 to 170

°C

SPECIFICATIONS