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0～50 A 導線内蔵電流センサー IC

当社の全内蔵型高絶縁電流センサー ソリューション ファミリーでは、外部絶縁コンポーネントをまったく必要とせずに、非常に低抵抗で正確に測定できます。

Allegro 独自のパッケージングでは、コアレス パッケージ設計で優れた磁気結合を形成するフリップ チップ技術を使用しています。また、当社のソリューションは、最大 4800 VRMS のガルバニック絶縁を提供します。こうした低プロファイルの小型フォーム ファクタ パッケージは、センサー抵抗器オペ アンプまたは大きな変流器構成の基板領域を削減するために理想的です。

Featured Products

Allegro's MA-LA-MC Packages

ACS37002

400 kHz、高精度電流センサー、ピン選択式ゲイン

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Allegro EX 12 Package

ACS71240

Automotive-Grade, Galvanically Isolated Current Sensor IC

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ACS37800

プログラマブル AC および DC 電源監視 IC

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電流センサー IC 0～50 A選択ガイド

Part Number
Description
Status
Current Measurement Range (A)
Select all
5
10
20
25
30
33
33.3
37.5
40
50
65
66
66.7
70
80
100
133
±2.5
±5
±10
±12
±12.5
±15
±15.5
±20
±25
±30
±31
±33
±35
±37.5
±40
±45
±50
±65
±66
±66.7
±70
±75
±80
±90
±100
±108
±133
±135
±180
Basic Isolation Working Voltage (Vrms)
Reinforced Isolation Working Voltage (Vrms)
Isolation Voltage (Vrms)
Select all
100
2100
2400
2500
3000
3500
3600
4000
4242
4800
5000
Creepage (mm)
Clearance (mm)
Bandwidth (kHz)
Select all
1
80
100
120
400
450
500
1000
5000
Supply Voltage (V)
Select all
3.3
5
Primary Conductor Resistance (mΩ)
Package
Select all
6-Pin SOIC
8-Pin SOIC
12-Pin QFN
16-pin SOICW
Features
Select all
Adjustable Gain
Adjustable Overcurrent Fault
Overcurrent Fault
Programmable AC/DC Power Monitoring
XtremeSense TMR Current Sensor
Zero Current Reference Voltage Output
 
NewACS37035AEC-Q100 Reinforced Isolation 1 MHZ Hall Current Sensor in SOICW-16 with Fault±20, ±40, ±65424210003.3, 51.0016-pin SOICWAdjustable Overcurrent Fault
NewACS71010AECQ100 GRADE 2 REINFORCED HALL CURRENT SENSOR 0.85MΩ SOIC16±50, ±80500040050.8516-pin SOICWZero Current Reference Voltage Output, Adjustable Overcurrent Fault
ACS37002400 kHz, High Accuracy Current Sensor with Pin-Selectable Gains±10, ±12, ±15, ±20, ±25, ±30, ±33, ±37.5, ±40, ±50, ±66, ±80, ±100, ±133, 25, 30, 33, 37.5, 40, 50, 66, 80, 100, 133, ±66.7, ±90, ±108, ±135, ±180, 33.3, 66.74242, 50004003.3, 50.85, 1, 0.2716-pin SOICWAdjustable Gain, Zero Current Reference Voltage Output, Adjustable Overcurrent Fault
ACS37010450 kHz, High Accuracy Current Sensor With Zero Current Voltage Reference in Fused-Lead SOIC-8 Package±50, ±3035004503.3, 50.686-Pin SOICZero Current Reference Voltage Output
ACS37030DC to 5 MHz Bandwidth, Galvanically Isolated, High-Accuracy Current Sensor IC±65, ±40, ±203500, 424250003.30.68, 0.86-Pin SOIC-
ACS37800Single Phase, Isolated, Power Monitoring IC with Voltage Zero Crossing and Overcurrent Detection±15, ±30, ±905000, 500013.3, 50.85, 0.2716-pin SOICWProgrammable AC/DC Power Monitoring
CT4022TMR Current Sensor with High dV/dt Immunity, Common-Mode Field Rejection and 3 kVRMS Galvanic Isolation±10, 10, ±20, ±30, 30, ±40, ±50, ±65, ±1230005003.3, 50.508-Pin SOICXtremeSense TMR Current Sensor
CT415TMR Current Sensor with Ultra-Low Noise and <1% Total Error±20, 20, ±30, 30, ±50, 50, ±65, 652500100050.508-Pin SOIC-
CT416TMR Current Sensor with Ultra-Low Noise and <1% Total Error±20, 20, ±30, 30, ±50, 50, ±65, 65250010003.30.508-Pin SOIC-
CT417TMR Current Sensor with Ultra-Low Noise and <1% Total Error±20, 20, ±30, 30, ±50, 50, ±65, 65250010003.30.508-Pin SOICOvercurrent Fault
CT418TMR Current Sensor with Ultra-Low Noise and <1% Total Error±20, 20, ±30, 30, ±50, 50, ±65, 652500100050.508-Pin SOICOvercurrent Fault
CT425TMR Current Sensor with Ultra-Low Noise and <0.7% Total Error±20, 20, ±30, 30, ±50, 50, ±65, 654000100050.508-Pin SOIC-
CT426TMR Current Sensor with Ultra-Low Noise and <0.7% Total Error±20, 20, ±30, 30, ±50, 50, ±65, 65400010003.30.508-Pin SOIC-
CT427TMR Current Sensor with Ultra-Low Noise and <0.7% Total Error±20, 20, ±30, 30, ±50, 50, ±65, 65400010003.30.508-Pin SOICOvercurrent Fault
CT428TMR Current Sensor with Ultra-Low Noise and <0.7% Total Error±20, 20, ±30, 30, ±50, 50, ±65, 654000100050.508-Pin SOICOvercurrent Fault
CT430TMR Current Sensor with Ultra-Low Noise, <0.7% Total Error and Common-Mode Field Rejection in SOICW-16 Package±20, 20, ±30, 30, ±50, 50, ±65, 655000100050.5016-pin SOICWOvercurrent Fault, Zero Current Reference Voltage Output
CT431TMR Current Sensor with Ultra-Low Noise, <0.7% Total Error and Common-Mode Field Rejection in SOICW-16 Package±20, 20, ±30, 30, ±40, ±50, 50, ±65, 65500010003.30.5016-pin SOICWOvercurrent Fault, Zero Current Reference Voltage Output
CT432TMR Current Sensor with Ultra-Low Noise, <0.7% Total Error and Common-Mode Field Rejection in SOICW-16 Package±20, 20, ±30, 30, ±50, 50, ±65, 65, 705000100050.5016-pin SOICWOvercurrent Fault, Zero Current Reference Voltage Output
CT433TMR Current Sensor with Ultra-Low Noise, <0.7% Total Error and Common-Mode Field Rejection in SOICW-16 Package±20, 20, ±30, 30, ±40, ±50, 50, ±65, 65, ±70500010003.30.5016-pin SOICWOvercurrent Fault, Zero Current Reference Voltage Output
ACS37032DC to 5MHz Current Sensor With Overcurrent Fault Output in Fused-Lead SOIC-8 Package±65, ±20, ±403500, 424250003.30.68, 0.86-Pin SOIC-
ACS711Linear Current Sensor with Overcurrent Fault Output with <100 V Isolation±12.5, ±15.5, ±25, 25, ±31, 301001003.3, 50.6, 1.28-Pin SOIC, 12-Pin QFNOvercurrent Fault
ACS71240Automotive-Grade, Current Sensor IC with CM field rejection and Overcurrent Detection in SOIC8 and 2400VRMS Isolation±10, ±20, 20, ±30, ±45, ±50, 5024001203.3, 50.6, 1.28-Pin SOIC, 12-Pin QFNOvercurrent Fault
ACS715Automotive Grade, Linear Current Sensor IC with 2.1 kVRMS Voltage Isolation20, 3021008051.208-Pin SOIC-
ACS720High Accuracy, Dual Overcurrent Faults, CM field rejection, Isolated Current Sensor IC±15, ±35, ±65, ±80360012051.0016-pin SOICWAdjustable Overcurrent Fault
ACS724Automotive-Grade, High Accuracy, CM field rejection, Isolated Current Sensor IC±2.5, ±5, ±10, ±12, ±20, ±30, ±50, ±65, ±100, 5, 10, 20, 30, 502400, 4800, 500012050.85, 1.2, 0.268-Pin SOIC, 16-pin SOICW-
Part Number
Description
Current Measurement Range (A)
Isolation Voltage
(Vrms)
Bandwidth (kHz)
Supply Voltage (V)
Primary Conductor Resistance
(mΩ)
Package
Features
ACS37035AEC-Q100 Reinforced Isolation 1 MHZ Hall Current Sensor in SOICW-16 with Fault±20±40±65424210003.351.0016-pin SOICWAdjustable Overcurrent Fault
ACS71010AECQ100 GRADE 2 REINFORCED HALL CURRENT SENSOR 0.85MΩ SOIC16±50±80500040050.8516-pin SOICWZero Current Reference Voltage OutputAdjustable Overcurrent Fault
ACS37002400 kHz, High Accuracy Current Sensor with Pin-Selectable Gains±10±12±15±20±25±30±33±37.5±40±50±66±80±100±13325303337.540506680100133±66.7±90±108±135±18033.366.7424250004003.350.8510.2716-pin SOICWAdjustable GainZero Current Reference Voltage OutputAdjustable Overcurrent Fault
ACS37010450 kHz, High Accuracy Current Sensor With Zero Current Voltage Reference in Fused-Lead SOIC-8 Package±50±3035004503.350.686-Pin SOICZero Current Reference Voltage Output
ACS37030DC to 5 MHz Bandwidth, Galvanically Isolated, High-Accuracy Current Sensor IC±65±40±203500424250003.30.680.86-Pin SOIC
ACS37800Single Phase, Isolated, Power Monitoring IC with Voltage Zero Crossing and Overcurrent Detection±15±30±905000500013.350.850.2716-pin SOICWProgrammable AC/DC Power Monitoring
CT4022TMR Current Sensor with High dV/dt Immunity, Common-Mode Field Rejection and 3 kVRMS Galvanic Isolation±1010±20±3030±40±50±65±1230005003.350.508-Pin SOICXtremeSense TMR Current Sensor
CT415TMR Current Sensor with Ultra-Low Noise and <1% Total Error±2020±3030±5050±65652500100050.508-Pin SOIC
CT416TMR Current Sensor with Ultra-Low Noise and <1% Total Error±2020±3030±5050±6565250010003.30.508-Pin SOIC
CT417TMR Current Sensor with Ultra-Low Noise and <1% Total Error±2020±3030±5050±6565250010003.30.508-Pin SOICOvercurrent Fault
CT418TMR Current Sensor with Ultra-Low Noise and <1% Total Error±2020±3030±5050±65652500100050.508-Pin SOICOvercurrent Fault
CT425TMR Current Sensor with Ultra-Low Noise and <0.7% Total Error±2020±3030±5050±65654000100050.508-Pin SOIC
CT426TMR Current Sensor with Ultra-Low Noise and <0.7% Total Error±2020±3030±5050±6565400010003.30.508-Pin SOIC
CT427TMR Current Sensor with Ultra-Low Noise and <0.7% Total Error±2020±3030±5050±6565400010003.30.508-Pin SOICOvercurrent Fault
CT428TMR Current Sensor with Ultra-Low Noise and <0.7% Total Error±2020±3030±5050±65654000100050.508-Pin SOICOvercurrent Fault
CT430TMR Current Sensor with Ultra-Low Noise, <0.7% Total Error and Common-Mode Field Rejection in SOICW-16 Package±2020±3030±5050±65655000100050.5016-pin SOICWOvercurrent FaultZero Current Reference Voltage Output
CT431TMR Current Sensor with Ultra-Low Noise, <0.7% Total Error and Common-Mode Field Rejection in SOICW-16 Package±2020±3030±40±5050±6565500010003.30.5016-pin SOICWOvercurrent FaultZero Current Reference Voltage Output
CT432TMR Current Sensor with Ultra-Low Noise, <0.7% Total Error and Common-Mode Field Rejection in SOICW-16 Package±2020±3030±5050±6565705000100050.5016-pin SOICWOvercurrent FaultZero Current Reference Voltage Output
CT433TMR Current Sensor with Ultra-Low Noise, <0.7% Total Error and Common-Mode Field Rejection in SOICW-16 Package±2020±3030±40±5050±6565±70500010003.30.5016-pin SOICWOvercurrent FaultZero Current Reference Voltage Output
ACS37032DC to 5MHz Current Sensor With Overcurrent Fault Output in Fused-Lead SOIC-8 Package±65±20±403500424250003.30.680.86-Pin SOIC
ACS711Linear Current Sensor with Overcurrent Fault Output with <100 V Isolation±12.5±15.5±2525±31301001003.350.61.28-Pin SOIC12-Pin QFNOvercurrent Fault
ACS71240Automotive-Grade, Current Sensor IC with CM field rejection and Overcurrent Detection in SOIC8 and 2400VRMS Isolation±10±2020±30±45±505024001203.350.61.28-Pin SOIC12-Pin QFNOvercurrent Fault
ACS715Automotive Grade, Linear Current Sensor IC with 2.1 kVRMS Voltage Isolation203021008051.208-Pin SOIC
ACS720High Accuracy, Dual Overcurrent Faults, CM field rejection, Isolated Current Sensor IC±15±35±65±80360012051.0016-pin SOICWAdjustable Overcurrent Fault
ACS724Automotive-Grade, High Accuracy, CM field rejection, Isolated Current Sensor IC±2.5±5±10±12±20±30±50±65±10051020305024004800500012050.851.20.268-Pin SOIC16-pin SOICW
ACS725Automotive-Grade, High Accuracy, CM field rejection, Isolated Current Sensor IC±5±10±20±30±40102030±50±652400480050001203.30.851.20.268-Pin SOIC16-pin SOICW
ACS7301 MHz BW, Isolated Current Sensor IC3080±20±30±40±50±65402400100051.208-Pin SOICZero Current Reference Voltage Output
ACS732Automotive Grade, 1MHz BW, Isolated Current Sensor IC with Overcurrent Fault±20±40±6565±7536004800100050.85116-pin SOICWAdjustable Overcurrent Fault
ACS733Automotive Grade, 1MHz BW, Isolated Current Sensor IC with Overcurrent Fault±20±4040±653600480010003.30.85116-pin SOICWAdjustable Overcurrent Fault

Documentation & Resources

Brochure: Current Sensing for Vehicle Electrification

Brochure

Brochure: Current Sensing for Vehicle Electrification

Charge into the future of vehicle electrification with the world's #1 supplier of current sensor ICs for leading EV applications.

詳細をご覧ください
Managing External Magnetic Field Interference When Using ACS71x Current Sensor ICs

Application Note

Managing External Magnetic Field Interference When Using ACS71x Current Sensor ICs

AN26030 - In applications where large magnetic fields may be present, care must be taken in the alignment and spacing of the Hall element relative to ...

詳細をご覧ください
I2C Addressing and Fault Monitoring Using The ACS71020 or ACS37800 Power Monitoring IC Digital Input Output Pins

Application Note

I2C Addressing and Fault Monitoring Using The ACS71020 or ACS37800 Power Monitoring IC Digital Input Output Pins

AN296172 - This application note describes methods of setting the I2C slave address of the ACS71020/ACS37800 and the added functionality of the ...

詳細をご覧ください
Convenient and Isolated Power Measurements via SPI or I2C using ACS71020 or ACS37800 Power Monitoring ICs

Application Note

Convenient and Isolated Power Measurements via SPI or I2C using ACS71020 or ACS37800 Power Monitoring ICs

AN296180 - This application note describes the I2C and SPI interfaces on the ACS71020/ACS37800 Power Monitoring ICs from Allegro MicroSystems.

詳細をご覧ください
Brochure: Solar Energy Harvesting

Brochure

Brochure: Solar Energy Harvesting

Allegro’s current sensor ICs are ideal for use with solar applications, which include electronic subsystems like solar combiner boxes, DC/DC ...

Read Now
New 400 kHz Current Sensors Enable More Sustainable Designs in Switch-Mode Power Designs

Technical Article

New 400 kHz Current Sensors Enable More Sustainable Designs in Switch-Mode Power Designs

Really Cool. Really Efficient. New 400 kHz current sensors enable more sustainable designs in switch-mode power designs.

詳細をご覧ください
Solar Energy Systems – New Market Trends in Current Sensing

Technical Article

Solar Energy Systems – New Market Trends in Current Sensing

P0103 - As solar installations grow larger and more ambitious by the day, new trends in current sensing are emerging for this expanding energy ...

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An Effective Method for Characterizing System Bandwidth in Complex Current Sensor Applications

Application Note

An Effective Method for Characterizing System Bandwidth in Complex Current Sensor Applications

This application note describes multiple methods for measuring and characterizing system bandwidth, with a focus on the impulse response method. ...

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Current Sensors FAQ

FAQ

Current Sensors FAQ

Have questions about our industry-leading current sensor ICs? Check out our most frequently asked questions and answers.

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Achieving Closed-Loop Accuracy in Open-Loop Current Sensors

Application Note

Achieving Closed-Loop Accuracy in Open-Loop Current Sensors

Closed-loop current sensing technology is employed in many industrial and automotive applications for accurate current sensing. Allegro MicroSystems ...

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Magnetic Current Sensing Drives Vehicle Electrification

Technical Article

Magnetic Current Sensing Drives Vehicle Electrification

Modern cars have become increasingly power hungry. Even the “least electrified” vehicles include advanced electronics for infotainment, safety, and ...

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New Approaches to High-Efficiency Current Sensing: Integrated Hall Sensor ICs Save Power and Space

Application Note

New Approaches to High-Efficiency Current Sensing: Integrated Hall Sensor ICs Save Power and Space

May 02, 2022

AN296100: Allegro current sensor ICs allow design engineers to use Hall-effect based current sensor ICs in new applications where increased energy ...

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Increased Electric Motor Content in HEV Subsystems Require Current Sensing

Application Note

Increased Electric Motor Content in HEV Subsystems Require Current Sensing

To control the drive train in HEV and full EV vehicles, it is well-known that current sensing is required particularly in starter generator and main ...

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Improving Efficiency in Smart Grid Applications With Fully Integrated Current Sensing ICs

Application Note

Improving Efficiency in Smart Grid Applications With Fully Integrated Current Sensing ICs

With increasing concerns about the global demand for energy and environmental awareness, power electronics applications are under pressure to improve ...

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Using Allegro Current Sensor ICs in Current Divider Configurations for Extended Measurement Range

Application Note

Using Allegro Current Sensor ICs in Current Divider Configurations for Extended Measurement Range

This application note describes simple methods for increasing the measurable current range. These methods involve splitting the path of the current ...

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