ACS758LCB-050U-PFF-T datasheet(8/21 Pages) ALLEGRO

Part #	ACS758LCB-050U-PFF-T

Description	The Allegro ACS758 family of current sensor ICs provides economical and precise solutions for AC or DC current sensing.

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Manufacturer	ALLEGRO [Allegro MicroSystems]

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Thermally Enhanced, Fully Integrated, Hall Effect-Based

Linear Current Sensor IC with 100 μΩ Current Conductor

ACS758xCB

8

Allegro MicroSystems, Inc.

115 Northeast Cutoff

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

1.508.853.5000; www.allegromicro.com

X

100B PERFORMANCE CHARACTERISTICS1: T

OP = –40°C to 150°C, VCC = 5 V, unless otherwise specified

Characteristic

Symbol

Test Conditions

Min.

Typ.

Max.

Units

Primary Sampled Current

IP

–100

–

100

A

Sensitivity

SensTA

Full scale of IP applied for 5 ms, TA = 25°C

–

20

–

mV/A

Sens(TOP)HT Full scale of IP applied for 5 ms, TOP = 25°C to 150°C

–

19.75

–

mV/A

Sens(TOP)LT Full scale of IP applied for 5 ms, TOP = –40°C to 25°C

–

20.5

–

mV/A

Noise2

VNOISE

TA= 25°C, 10 nF on VIOUT pin to GND

–

6

–

mV

Nonlinearity

ELIN

Up to full scale of IP, IP applied for 5 ms

–1.25

–

1.25

%

Electrical Offset Voltage3

VOE(TA)

IP = 0 A, TA = 25°C

–

±5

–

mV

VOE(TOP)HT IP = 0 A, TOP = 25°C to 150°C

–

±20

–

mV

VOE(TOP)LT IP = 0 A, TOP = –40°C to 25°C

–

±20

–

mV

Magnetic Offset Error

IERROM

IP = 0 A, TA = 25°C, after excursion of 100 A

–

150

–

mA

Total Output Error4

ETOT(HT)

Over full scale of IP, IP applied for 5 ms, TOP = 25°C to 150°C

–

–1.3

–

%

ETOT(LT)

Over full scale of IP, IP applied for 5 ms, TOP = –40°C to 25°C

–

2.4

–

%

1See Characteristic Performance Data page for parameter distributions over temperature range.

2±3 sigma noise voltage.

3VOE(TOP) drift is referred to ideal VIOUT(Q) = 2.5 V.

4Percentage of IP. Output filtered.

X

100U PERFORMANCE CHARACTERISTICS1: T

OP = –40°C to 150°C, VCC = 5 V, unless otherwise specified

Characteristic

Symbol

Test Conditions

Min.

Typ.

Max.

Units

Primary Sampled Current

IP

0

–

100

A

Sensitivity

SensTA

Full scale of IP applied for 5 ms, TA = 25°C

–

40

–

mV/A

Sens(TOP)HT Full scale of IP applied for 5 ms, TOP = 25°C to 150°C

–

39.5

–

mV/A

Sens(TOP)LT Full scale of IP applied for 5 ms, TOP = –40°C to 25°C

–

41

–

mV/A

Noise2

VNOISE

TA= 25°C, 10 nF on VIOUT pin to GND

–

12

–

mV

Nonlinearity

ELIN

Up to full scale of IP, IP applied for 5 ms

–1.25

–

1.25

%

Electrical Offset Voltage3

VOE(TA)

IP = 0 A, TA = 25°C

–

±5

–

mV

VOE(TOP)HT IP = 0 A, TOP = 25°C to 150°C

–

±20

–

mV

VOE(TOP)LT IP = 0 A, TOP = –40°C to 25°C

–

±20

–

mV

Magnetic Offset Error

IERROM

IP = 0 A, TA = 25°C, after excursion of 100 A

–

150

–

mA

Total Output Error4

ETOT(HT)

Over full scale of IP, IP applied for 5 ms, TOP = 25°C to 150°C

–

–1.3

–

%

ETOT(LT)

Over full scale of IP, IP applied for 5 ms, TOP = –40°C to 25°C

–

2.4

–

%

1See Characteristic Performance Data page for parameter distributions over temperature range.

2±3 sigma noise voltage.

3VOE(TOP) drift is referred to ideal VIOUT(Q) = 0.6 V.

4Percentage of IP. Output filtered.

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