ACS772：高精度双向电流传感器，适用于电机控制与故障检测

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

Galvanically Isolated Current Sensor IC with 100 µΩ Current Conductor

ACS772

Allegro MicroSystems

955 Perimeter Road

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

www.allegromicro.com

X050B PERFORMANCE CHARACTERISTICS: T

= –40°C to 150°C

[1]

, V

= 5 V, unless otherwise specied

Characteristic Symbol Test Conditions Min. Typ.

[2]

Max. Unit

NOMINAL PERFORMANCE

Current Sensing Range I

–50 – 50 A

Sensitivity Sens I

PR(min)

< I

PR(max)

–

40 ×

/ 5

– mV/A

Zero Current Output Voltage V

IOUT(Q)

Bidirectional; I

= 0 A – V

/ 2 – V

ACCURACY PERFORMANCE

Noise V

= 25°C, C

= 1 nF – 20.4 – mV

p-p

= 25°C, C

= 1 nF – 3.4 – mV

RMS

Sensitivity Error E

Sens

Full scale of I

, T

= 25°C –1 ±0.7 1 %

Full scale of I

, T

= 25°C to 150°C –1.25 ±0.8 1.25 %

Full scale of I

, T

= –40°C to 25°C –3.5 ±1.7 3.5 %

Electrical Offset Error

OE(TA)

= 0 A, T

= 25°C –8 ±4 8 mV

OE(TA)HT

= 0 A, T

= 25°C to 150°C –8 ±4 8 mV

OE(TA)LT

= 0 A, T

= –40°C to 25°C –20 ±6 20 mV

Magnetic Offset Error I

ERROM

= 0 A, T

= 25°C, after excursion of I

PR(max)

– 210 250 mA

Total Output Error

TOT(HT)

Full scale of I

, T

= 25°C to 150°C –1.5 ±0.9 1.5 %

TOT(LT)

Full scale of I

, T

= –40°C to 25°C –3.5 ±1.7 3.5 %

LIFETIME ACCURACY CHARACTERISTICS

[3]

Sensitivity Error Including Lifetime

Sens(LIFE)(HT)

= 25°C to 150°C –2.1 ±1.6 2.1 %

Sens(LIFE)(LT)

= –40°C to 25°C –3.5 ±2.5 3.5 %

Total Output Error Including Lifetime

TOT(LIFE)(HT)

= 25°C to 150°C –2.1 ±1.7 2.1 %

TOT(LIFE)(LT)

= –40°C to 25°C –3.5 ±2.6 3.5 %

Electric Offset Error Including Lifetime

OFF(LIFE)(HT)

= 25°C to 150°C –10 ±7 10 mV

OFF(LIFE)(LT)

= –40°C to 25°C –20 ±8.9 20 mV

[1]

All ACS772 devices are production tested and guaranteed to T

= 150°C, provided the Maximum Junction Temperature, T

J(MAX)

, is not exceeded. See Absolute Maximum

Ratings and Thermal Application section of this datasheet for more information.

[2]

Typical values are ±3 sigma values.

[3]

Min/max limits are derived from AEC-Q100 Grade 1 testing.

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

Galvanically Isolated Current Sensor IC with 100 µΩ Current Conductor

ACS772

Allegro MicroSystems

955 Perimeter Road

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

www.allegromicro.com

X100U PERFORMANCE CHARACTERISTICS: T

= –40°C to 150°C

[1]

, V

= 5 V, unless otherwise specied

Characteristic Symbol Test Conditions Min. Typ.

[2]

Max. Unit

NOMINAL PERFORMANCE

Current Sensing Range I

0 – 100 A

Sensitivity Sens I

PR(min)

< I

PR(max)

–

40 ×

/ 5

– mV/A

Zero Current Output Voltage V

IOUT(Q)

Unidirectional; I

= 0 A – V

/ 10 – V

ACCURACY PERFORMANCE

Noise V

= 25°C, C

= 1 nF – 20.4 – mV

p-p

= 25°C, C

= 1 nF – 3.4 – mV

RMS

Sensitivity Error E

Sens

Full scale of I

, T

= 25°C –1 ±0.7 1 %

Full scale of I

, T

= 25°C to 150°C –1.25 ±0.8 1.25 %

Full scale of I

, T

= –40°C to 25°C –3.5 ±1.7 3.5 %

Electrical Offset Error

OE(TA)

= 0 A, T

= 25°C –8 ±4 8 mV

OE(TA)HT

= 0 A, T

= 25°C to 150°C –8 ±4 8 mV

OE(TA)LT

= 0 A, T

= –40°C to 25°C –20 ±6 20 mV

Magnetic Offset Error I

ERROM

= 0 A, T

= 25°C, after excursion of I

PR(max)

– 280 400 mA

Total Output Error

TOT(HT)

Full scale of I

, T

= 25°C to 150°C –1.5 ±0.9 1.5 %

TOT(LT)

Full scale of I

, T

= –40°C to 25°C –3.5 ±1.7 3.5 %

LIFETIME ACCURACY CHARACTERISTICS

[3]

Sensitivity Error Including Lifetime

Sens(LIFE)(HT)

= 25°C to 150°C –2.1 ±1.6 2.1 %

Sens(LIFE)(LT)

= –40°C to 25°C –3.5 ±2.5 3.5 %

Total Output Error Including Lifetime

TOT(LIFE)(HT)

= 25°C to 150°C –2.1 ±1.7 2.1 %

TOT(LIFE)(LT)

= –40°C to 25°C –3.5 ±2.6 3.5 %

Electric Offset Error Including Lifetime

OFF(LIFE)(HT)

= 25°C to 150°C –10 ±7 10 mV

OFF(LIFE)(LT)

= –40°C to 25°C –20 ±8.9 20 mV

[1]

All ACS772 devices are production tested and guaranteed to T

= 150°C, provided the Maximum Junction Temperature, T

J(MAX)

, is not exceeded. See Absolute Maximum

Ratings and Thermal Application section of this datasheet for more information.

[2]

Typical values are ±3 sigma values.

[3]

Min/max limits are derived from AEC-Q100 Grade 1 testing.

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

Galvanically Isolated Current Sensor IC with 100 µΩ Current Conductor

ACS772

Allegro MicroSystems

955 Perimeter Road

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

www.allegromicro.com

X100B PERFORMANCE CHARACTERISTICS: T

= –40°C to 150°C

[1]

, V

= 5 V, unless otherwise specied

Characteristic Symbol Test Conditions Min. Typ.

[2]

Max. Unit

NOMINAL PERFORMANCE

Current Sensing Range I

–100 – 100 A

Sensitivity Sens I

PR(min)

< I

PR(max)

–

20 ×

/ 5

– mV/A

Zero Current Output Voltage V

IOUT(Q)

Bidirectional; I

= 0 A – V

/ 2 – V

ACCURACY PERFORMANCE

Noise V

= 25°C, C

= 1 nF – 20.4 – mV

p-p

= 25°C, C

= 1 nF – 3.4 – mV

RMS

Sensitivity Error E

Sens

Full scale of I

, T

= 25°C –1 ±0.7 1 %

Full scale of I

, T

= 25°C to 150°C –1.25 ±0.8 1.25 %

Full scale of I

, T

= –40°C to 25°C –3.5 ±1.7 3.5 %

Electrical Offset Error

OE(TA)

= 0 A, T

= 25°C –8 ±4 8 mV

OE(TA)HT

= 0 A, T

= 25°C to 150°C –8 ±4 8 mV

OE(TA)LT

= 0 A, T

= –40°C to 25°C –20 ±6 20 mV

Magnetic Offset Error I

ERROM

= 0 A, T

= 25°C, after excursion of I

PR(max)

– 175 400 mA

Total Output Error

TOT(HT)

Full scale of I

, T

= 25°C to 150°C –1.5 ±0.9 1.5 %

TOT(LT)

Full scale of I

, T

= –40°C to 25°C –3.5 ±1.7 3.5 %

LIFETIME ACCURACY CHARACTERISTICS

[3]

Sensitivity Error Including Lifetime

Sens(LIFE)(HT)

= 25°C to 150°C –2.1 ±1.6 2.1 %

Sens(LIFE)(LT)

= –40°C to 25°C –3.5 ±2.5 3.5 %

Total Output Error Including Lifetime

TOT(LIFE)(HT)

= 25°C to 150°C –2.1 ±1.7 2.1 %

TOT(LIFE)(LT)

= –40°C to 25°C –3.5 ±2.6 3.5 %

Electric Offset Error Including Lifetime

OFF(LIFE)(HT)

= 25°C to 150°C –10 ±7 10 mV

OFF(LIFE)(LT)

= –40°C to 25°C –20 ±8.9 20 mV

[1]

All ACS772 devices are production tested and guaranteed to T

= 150°C, provided the Maximum Junction Temperature, T

J(MAX)

, is not exceeded. See Absolute Maximum

Ratings and Thermal Application section of this datasheet for more information.

[2]

Typical values are ±3 sigma values.

[3]

Min/max limits are derived from AEC-Q100 Grade 1 testing.

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