ACS709 데이터 시트보기 (PDF) - Allegro MicroSystems

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ACS709

High Bandwidth, Fast Fault Response Current Sensor IC In Thermally Enhanced Package

Allegro MicroSystems 

ACS709

High Bandwidth, Fast Fault Response Current Sensor IC

In Thermally Enhanced Package

X20B PERFORMANCE CHARACTERISTICS, TA Range L, valid at TA = –40°C to 150°C, VCC = 5 V, unless otherwise specified

Characteristic

Symbol

Test Conditions

Min. Typ. Max.

Units

Optimized Accuracy Range

IP(OA)

–20

–

20

A

Linear Sensing Range

IP(LIN)

–37.5

–

37.5

A

Performance Characteristics at VCC = 5 V

Noise1

VNOISE(rms) TA = 25°C, Sens = 56 mV/A, Cf = 0, CLOAD = 4.7 nF, RLOAD open

–

1.50

–

mV

IP = 12.5 A, TA = 25°C

–

56

–

mV/A

Sensitivity2,3

Sens IP = 12.5 A, TA = 25°C to 150°C

54.5

–

58

mV/A

IP = 12.5 A, TA = –40°C to 25°C

54.5

–

58.5 mV/A

IP = 0 A, TA = 25°C

–

±5

–

mV

Electrical Offset Voltage2

VOE

IP = 0 A, TA = 25°C to 150°C

–25

–

25

mV

IP = 0 A, TA = –40°C to 25°C

–40

–

40

mV

Total Output Error2,4

ETOT

Tested at IP =12.5 A, IP applied for 5 ms, TA = 25°C to 150°C

Tested at IP =12.5 A, IP applied for 5 ms, TA = –40°C to 25°C

–

±2

–

±3

–

%

–

%

1Vpk-pk noise (6 sigma noise) is equal to 6 × VNOISE(rms). Lower noise levels than this can be achieved by using Cf for applications requiring narrower

bandwidth. See Characteristic Performance page for graphs of noise versus Cf and bandwidth versus Cf.

2See Characteristic Performance Data graphs for parameter distribution over ambient temperature range.

3This parameter can drift by as much as 1.75% over lifetime of the product.

4This parameter can drift by as much as 2.5% over lifetime of the product.

X35B PERFORMANCE CHARACTERISTICS, TA Range L, valid at TA = –40°C to 150°C, VCC = 5 V, unless otherwise specified

Characteristic

Symbol

Test Conditions

Min. Typ. Max.

Units

Optimized Accuracy Range

IP(OA)

–37.5

–

37.5

A

Linear Sensing Range

IP(LIN)

–75

–

75

A

Performance Characteristics at VCC = 5 V

Noise1

VNOISE(rms) TA = 25°C, Sens = 28 mV/A, Cf = 0, CLOAD = 4.7 nF, RLOAD open

–

1

–

mV

IP = 25 A, TA = 25°C

–

28

–

mV/A

Sensitivity2,3

Sens IP = 25 A, TA = 25°C to 150°C

27

–

29.5 mV/A

IP = 25 A, TA = –40°C to 25°C

27

–

29.5 mV/A

IP = 0 A, TA = 25°C

–

±5

–

mV

Electrical Offset Voltage2

VOE

IP = 0 A, TA = 25°C to 150°C

–25

–

25

mV

IP = 0 A, TA = –40°C to 25°C

–40

–

40

mV

Total Output Error2,4

ETOT

Tested at IP = 25 A, IP applied for 5 ms, TA = 25°C to 150°C

Tested at IP = 25 A, IP applied for 5 ms, TA = –40°C to 25°C

–

±3

–

±3

–

%

–

%

1Vpk-pk noise (6 sigma noise) is equal to 6 × VNOISE(rms). Lower noise levels than this can be achieved by using Cf for applications requiring narrower

bandwidth. See Characteristic Performance page for graphs of noise versus Cf and bandwidth versus Cf.

2See Characteristic Performance Data graphs for parameter distribution over ambient temperature range.

3This parameter can drift by as much as 1.75% over lifetime of the product.

4This parameter can drift by as much as 2.5% over lifetime of the product.

Allegro MicroSystems, Inc.

6

115 Northeast Cutoff

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

1.508.853.5000; www.allegromicro.com

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