ACS772 datasheet(3/41 Pages) ALLEGRO

3 / 41 page

High Accuracy, Hall-Effect-Based, 200 kHz Bandwidth,

Galvanically Isolated Current Sensor IC with 100 µΩ Current Conductor

ACS772

Allegro MicroSystems, LLC

955 Perimeter Road

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

www.allegromicro.com

ISOLATION CHARACTERISTICS

Characteristic

Symbol

Notes

Rating

Unit

Dielectric Surge Strength Test Voltage

VSURGE

Tested ±5 pulses at 2/minute in compliance to IEC 61000-4-5

1.2 µs (rise) / 50 µs (width)

8000

Dielectric Strength Test Voltage [2]

VISO

Agency type-tested for 60 seconds per UL standard

60950-1, 2nd Edition. Tested at 3000 VRMS for 1 second

in production.

4800

VRMS

Working Voltage for Basic Isolation

VWVBI

For basic (single) isolation per UL standard 60950-1, 2nd

Edition

990

VPK or VDC

700

VRMS

Working Voltage for Reinforced Isolation

VWFRI

For reinforced (double) isolation per UL standard 60950-1,

2nd Edition

636

VPK or VDC

450

VRMS

[2]

Allegro does not conduct 60-second testing. It is done only during the UL certification process.

ABSOLUTE MAXIMUM RATINGS

Characteristic

Symbol

Notes

Rating

Unit

Supply Voltage

VCC

6.5

Reverse Supply Voltage

VRCC

–0.5

Output Voltage

VIOUT

6.5

Reverse Output Voltage

VRIOUT

–0.5

Output Source Current

IOUT(Source)

VIOUT to GND

Output Sink Current

IOUT(Sink)

Minimum pull-up resistor of 500 Ω from VCC to VIOUT

Operating Ambient Temperature [1]

Range E, K, and L

–40 to 150

°C

Maximum Junction Temperature

TJ(max)

165

°C

Storage Temperature

Tstg

–65 to 165

°C

[1]

All ACS772 devices are production tested and guaranteed to TA = 150°C, provided the Maximum Junction Temperature, TJ(MAX), is not exceeded. See Thermal

Application section of this datasheet for more information.

THERMAL CHARACTERISTICS: May require derating at maximum conditions

Characteristic

Symbol

Test Conditions [3]

Value

Unit

Package Thermal Resistance

RθJA

Mounted on the Allegro evaluation board with 2800 mm2

(1400 mm2 on component side and 1400 mm2 on opposite

side) of 4 oz. copper connected to the primary leadframe

and with thermal vias connecting the copper layers.

Performance is based on current flowing through the

primary leadframe and includes the power consumed by

the PCB.

°C/W

[3]

Additional thermal information available on the Allegro website.

TYPICAL OVERCURRENT CAPABILITIES [4][5]

Characteristic

Symbol

Notes

Rating

Unit

Overcurrent

IPOC

TA = 25°C; current is on for 1 second and off for

99 seconds, 100 pulses applied

1200

TA = 85°C; current is on for 1 second and off for

99 seconds, 100 pulses applied

900

TA = 150°C; current is on for 1 second and off for

99 seconds, 100 pulses applied

600

[4]

Test was done with Allegro evaluation board. The maximum allowed current is limited by TJ(max) only.

[5]

For more overcurrent profiles, please see FAQ on the Allegro website, www.allegromicro.com.

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