Allegro 電流センサー

高速過電流フォルト機能と同相除去機能を備えた自動車用電流センサIC

ACS71240

Markets Served

ACS71240は、自動車用途向けに堅牢で高精度の電流検出ソリューションを提供します。同相除去のための差動検出、高速な過電流フォルト出力、信頼性の高い動作を実現する高精度 (±1%) という特長があります。

View Datasheet

Product Details

Top Features

  • AEC-Q100 qualified
  • Differential Hall sensing rejects common-mode stray magnetic fields
  • Overcurrent FAULT with a Factory Programmable trip range of 50% to 200% of full-scale current
  • Non-Ratiometric output provides immunity to noisy supplies
  • Galvanically Isolated:
    • QFN package: 120VDC working voltage
    • SOIC8 package: UL certified to 2400VRMS, working voltage of 420VDC or 297VRMS
  • Reduced Power Loss:
    • 0.6 mΩ internal conductor resistance on QFN package
    • 1.2 mΩ internal conductor resistance on SOIC8 package
  • Integrated shield virtually eliminates capacitive coupling from current conductor to die, greatly suppressing output noise due to high dv/dt transients
  • Output voltage proportional to AC or DC current
  • High-bandwidth 120 kHz analog output for faster response times in control applications
  • Factory-trimmed sensitivity and quiescent output voltage for improved accuracy
  • 3.3 and 5 V single supply operation
  • Small footprint, low-profile QFN and SOIC8 packages suitable for space-constrained applications
Target Application

Part Number Specifications and Availability

View Full Specification Details

ACS71240KEXBLT-005B3-096-S

basic_isolation_working_voltage_vrms
-
isolation_voltage_vrms
-
creepage_mm
-
clearance_mm
-
primary_conductor_resistance_mohm
-
current_measurement_range_a
-
bandwidth_khz
-
supply_voltage_v
-
temp_ranges
-
package
-
market
-
features
-

ACS71240KEXBLT-005B3-230-S

basic_isolation_working_voltage_vrms
-
isolation_voltage_vrms
-
creepage_mm
-
clearance_mm
-
primary_conductor_resistance_mohm
-
current_measurement_range_a
-
bandwidth_khz
-
supply_voltage_v
-
temp_ranges
-
package
-
market
-
features
-

ACS71240KEXBLT-010B3

basic_isolation_working_voltage_vrms
-
isolation_voltage_vrms
-
creepage_mm
-
clearance_mm
-
primary_conductor_resistance_mohm
-
current_measurement_range_a
-
bandwidth_khz
-
supply_voltage_v
-
temp_ranges
-
package
-
market
-
features
-

ACS71240KEXBLT-010B3-115-S

basic_isolation_working_voltage_vrms
100
isolation_voltage_vrms
-
creepage_mm
-
clearance_mm
-
primary_conductor_resistance_mohm
0.6
current_measurement_range_a
±10
bandwidth_khz
120
supply_voltage_v
3.3
temp_ranges
-40°C to 125°C
package
12-Pin QFN
market
Automotive, Industrial
features
Overcurrent Fault

ACS71240KEXBLT-010B3-S

basic_isolation_working_voltage_vrms
100
isolation_voltage_vrms
-
creepage_mm
-
clearance_mm
-
primary_conductor_resistance_mohm
0.6
current_measurement_range_a
±10
bandwidth_khz
120
supply_voltage_v
3.3
temp_ranges
-40°C to 125°C
package
12-Pin QFN
market
Automotive, Industrial
features
Overcurrent Fault

ACS71240KEXBLT-010B5

basic_isolation_working_voltage_vrms
-
isolation_voltage_vrms
-
creepage_mm
-
clearance_mm
-
primary_conductor_resistance_mohm
-
current_measurement_range_a
-
bandwidth_khz
-
supply_voltage_v
-
temp_ranges
-
package
-
market
-
features
-

ACS71240KEXBLT-010B5-S

basic_isolation_working_voltage_vrms
100
isolation_voltage_vrms
-
creepage_mm
-
clearance_mm
-
primary_conductor_resistance_mohm
0.6
current_measurement_range_a
±10
bandwidth_khz
120
supply_voltage_v
5
temp_ranges
-40°C to 125°C
package
12-Pin QFN
market
Automotive, Industrial
features
Overcurrent Fault

ACS71240KEXBLT-020B5-150L

basic_isolation_working_voltage_vrms
-
isolation_voltage_vrms
-
creepage_mm
-
clearance_mm
-
primary_conductor_resistance_mohm
-
current_measurement_range_a
-
bandwidth_khz
-
supply_voltage_v
-
temp_ranges
-
package
-
market
-
features
-

ACS71240KEXBLT-020B5-150L-S

basic_isolation_working_voltage_vrms
100
isolation_voltage_vrms
-
creepage_mm
-
clearance_mm
-
primary_conductor_resistance_mohm
0.6
current_measurement_range_a
±20
bandwidth_khz
120
supply_voltage_v
5
temp_ranges
-40°C to 125°C
package
12-Pin QFN
market
Automotive, Industrial
features
Overcurrent Fault

ACS71240KEXBLT-020B5-S

basic_isolation_working_voltage_vrms
100
isolation_voltage_vrms
-
creepage_mm
-
clearance_mm
-
primary_conductor_resistance_mohm
0.6
current_measurement_range_a
±20
bandwidth_khz
120
supply_voltage_v
5
temp_ranges
-40°C to 125°C
package
12-Pin QFN
market
Automotive, Industrial
features
Overcurrent Fault

ACS71240KEXBLT-030B3

basic_isolation_working_voltage_vrms
-
isolation_voltage_vrms
-
creepage_mm
-
clearance_mm
-
primary_conductor_resistance_mohm
-
current_measurement_range_a
-
bandwidth_khz
-
supply_voltage_v
-
temp_ranges
-
package
-
market
-
features
-

ACS71240KEXBLT-030B3-167L-S

basic_isolation_working_voltage_vrms
100
isolation_voltage_vrms
-
creepage_mm
-
clearance_mm
-
primary_conductor_resistance_mohm
0.6
current_measurement_range_a
±30
bandwidth_khz
120
supply_voltage_v
3.3
temp_ranges
-40°C to 125°C
package
12-Pin QFN
market
Automotive, Industrial
features
Overcurrent Fault

ACS71240KEXBLT-030B3-S

basic_isolation_working_voltage_vrms
-
isolation_voltage_vrms
-
creepage_mm
-
clearance_mm
-
primary_conductor_resistance_mohm
0.6
current_measurement_range_a
±30
bandwidth_khz
120
supply_voltage_v
3.3
temp_ranges
-40°C to 125°C
package
12-Pin QFN
market
Automotive, Industrial
features
Overcurrent Fault

ACS71240KEXBLT-030B5

basic_isolation_working_voltage_vrms
-
isolation_voltage_vrms
-
creepage_mm
-
clearance_mm
-
primary_conductor_resistance_mohm
-
current_measurement_range_a
-
bandwidth_khz
-
supply_voltage_v
-
temp_ranges
-
package
-
market
-
features
-

ACS71240KEXBLT-030B5-S

basic_isolation_working_voltage_vrms
-
isolation_voltage_vrms
-
creepage_mm
-
clearance_mm
-
primary_conductor_resistance_mohm
0.6
current_measurement_range_a
±30
bandwidth_khz
120
supply_voltage_v
5
temp_ranges
-40°C to 125°C
package
12-Pin QFN
market
Automotive, Industrial
features
Overcurrent Fault

ACS71240KEXBLT-045B5

basic_isolation_working_voltage_vrms
-
isolation_voltage_vrms
-
creepage_mm
-
clearance_mm
-
primary_conductor_resistance_mohm
-
current_measurement_range_a
-
bandwidth_khz
-
supply_voltage_v
-
temp_ranges
-
package
-
market
-
features
-

ACS71240KEXBLT-045B5-S

basic_isolation_working_voltage_vrms
-
isolation_voltage_vrms
-
creepage_mm
-
clearance_mm
-
primary_conductor_resistance_mohm
0.6
current_measurement_range_a
±45
bandwidth_khz
120
supply_voltage_v
5
temp_ranges
-40°C to 125°C
package
12-Pin QFN
market
Automotive, Industrial
features
Overcurrent Fault

ACS71240KEXBLT-050B3

basic_isolation_working_voltage_vrms
-
isolation_voltage_vrms
-
creepage_mm
-
clearance_mm
-
primary_conductor_resistance_mohm
-
current_measurement_range_a
-
bandwidth_khz
-
supply_voltage_v
-
temp_ranges
-
package
-
market
-
features
-

ACS71240KEXBLT-050B3-120

basic_isolation_working_voltage_vrms
-
isolation_voltage_vrms
-
creepage_mm
-
clearance_mm
-
primary_conductor_resistance_mohm
-
current_measurement_range_a
-
bandwidth_khz
-
supply_voltage_v
-
temp_ranges
-
package
-
market
-
features
-

ACS71240KEXBLT-050B3-120-S

basic_isolation_working_voltage_vrms
-
isolation_voltage_vrms
-
creepage_mm
-
clearance_mm
-
primary_conductor_resistance_mohm
0.6
current_measurement_range_a
±50
bandwidth_khz
120
supply_voltage_v
3.3
temp_ranges
-40°C to 125°C
package
12-Pin QFN
market
Automotive, Industrial
features
Overcurrent Fault

ACS71240KEXBLT-050B3-S

basic_isolation_working_voltage_vrms
-
isolation_voltage_vrms
-
creepage_mm
-
clearance_mm
-
primary_conductor_resistance_mohm
0.6
current_measurement_range_a
±50
bandwidth_khz
120
supply_voltage_v
3.3
temp_ranges
-40°C to 125°C
package
12-Pin QFN
market
Automotive, Industrial
features
Overcurrent Fault

ACS71240KEXBLT-050B5

basic_isolation_working_voltage_vrms
-
isolation_voltage_vrms
-
creepage_mm
-
clearance_mm
-
primary_conductor_resistance_mohm
-
current_measurement_range_a
-
bandwidth_khz
-
supply_voltage_v
-
temp_ranges
-
package
-
market
-
features
-

ACS71240KEXBLT-050B5-S

basic_isolation_working_voltage_vrms
-
isolation_voltage_vrms
-
creepage_mm
-
clearance_mm
-
primary_conductor_resistance_mohm
0.6
current_measurement_range_a
±50
bandwidth_khz
120
supply_voltage_v
5
temp_ranges
-40°C to 125°C
package
12-Pin QFN
market
Automotive, Industrial
features
Overcurrent Fault

ACS71240KEXBLT-050U5

basic_isolation_working_voltage_vrms
-
isolation_voltage_vrms
-
creepage_mm
-
clearance_mm
-
primary_conductor_resistance_mohm
-
current_measurement_range_a
-
bandwidth_khz
-
supply_voltage_v
-
temp_ranges
-
package
-
market
-
features
-

ACS71240KEXBLT-050U5-S

basic_isolation_working_voltage_vrms
-
isolation_voltage_vrms
-
creepage_mm
-
clearance_mm
-
primary_conductor_resistance_mohm
0.6
current_measurement_range_a
50
bandwidth_khz
120
supply_voltage_v
5
temp_ranges
-40°C to 125°C
package
12-Pin QFN
market
Automotive, Industrial
features
Overcurrent Fault

ACS71240LLCBTR-010B3

basic_isolation_working_voltage_vrms
-
isolation_voltage_vrms
-
creepage_mm
-
clearance_mm
-
primary_conductor_resistance_mohm
-
current_measurement_range_a
-
bandwidth_khz
-
supply_voltage_v
-
temp_ranges
-
package
-
market
-
features
-

ACS71240LLCBTR-010B3-S

basic_isolation_working_voltage_vrms
-
isolation_voltage_vrms
2400
creepage_mm
4.2
clearance_mm
4.2
primary_conductor_resistance_mohm
1.2
current_measurement_range_a
±10
bandwidth_khz
120
supply_voltage_v
3.3
temp_ranges
-40°C to 150°C
package
8-Pin SOIC
market
Automotive, Industrial
features
Overcurrent Fault

ACS71240LLCBTR-020U5

basic_isolation_working_voltage_vrms
-
isolation_voltage_vrms
-
creepage_mm
-
clearance_mm
-
primary_conductor_resistance_mohm
-
current_measurement_range_a
-
bandwidth_khz
-
supply_voltage_v
-
temp_ranges
-
package
-
market
-
features
-

ACS71240LLCBTR-020U5-S

basic_isolation_working_voltage_vrms
-
isolation_voltage_vrms
2400
creepage_mm
4.2
clearance_mm
4.2
primary_conductor_resistance_mohm
1.2
current_measurement_range_a
20
bandwidth_khz
120
supply_voltage_v
5
temp_ranges
-40°C to 150°C
package
8-Pin SOIC
market
Automotive, Industrial
features
Overcurrent Fault

ACS71240LLCBTR-025B3

basic_isolation_working_voltage_vrms
-
isolation_voltage_vrms
-
creepage_mm
-
clearance_mm
-
primary_conductor_resistance_mohm
-
current_measurement_range_a
-
bandwidth_khz
-
supply_voltage_v
-
temp_ranges
-
package
-
market
-
features
-

ACS71240LLCBTR-030B3

basic_isolation_working_voltage_vrms
-
isolation_voltage_vrms
-
creepage_mm
-
clearance_mm
-
primary_conductor_resistance_mohm
-
current_measurement_range_a
-
bandwidth_khz
-
supply_voltage_v
-
temp_ranges
-
package
-
market
-
features
-

ACS71240LLCBTR-030B3-S

basic_isolation_working_voltage_vrms
-
isolation_voltage_vrms
2400
creepage_mm
4.2
clearance_mm
4.2
primary_conductor_resistance_mohm
1.2
current_measurement_range_a
±30
bandwidth_khz
120
supply_voltage_v
3.3
temp_ranges
-40°C to 150°C
package
8-Pin SOIC
market
Automotive, Industrial
features
Overcurrent Fault

ACS71240LLCBTR-045B5

basic_isolation_working_voltage_vrms
-
isolation_voltage_vrms
-
creepage_mm
-
clearance_mm
-
primary_conductor_resistance_mohm
-
current_measurement_range_a
-
bandwidth_khz
-
supply_voltage_v
-
temp_ranges
-
package
-
market
-
features
-

ACS71240LLCBTR-045B5-S

basic_isolation_working_voltage_vrms
-
isolation_voltage_vrms
2400
creepage_mm
4.2
clearance_mm
4.2
primary_conductor_resistance_mohm
1.2
current_measurement_range_a
±45
bandwidth_khz
120
supply_voltage_v
5
temp_ranges
-40°C to 150°C
package
8-Pin SOIC
market
Automotive, Industrial
features
Overcurrent Fault

ACS71240LLCBTR-050B3

basic_isolation_working_voltage_vrms
-
isolation_voltage_vrms
-
creepage_mm
-
clearance_mm
-
primary_conductor_resistance_mohm
-
current_measurement_range_a
-
bandwidth_khz
-
supply_voltage_v
-
temp_ranges
-
package
-
market
-
features
-

ACS71240LLCBTR-050B3-S

basic_isolation_working_voltage_vrms
-
isolation_voltage_vrms
2400
creepage_mm
4.2
clearance_mm
4.2
primary_conductor_resistance_mohm
1.2
current_measurement_range_a
±50
bandwidth_khz
120
supply_voltage_v
3.3
temp_ranges
-40°C to 150°C
package
8-Pin SOIC
market
Automotive, Industrial
features
Overcurrent Fault

ACS71240LLCBTR-050B5

basic_isolation_working_voltage_vrms
-
isolation_voltage_vrms
-
creepage_mm
-
clearance_mm
-
primary_conductor_resistance_mohm
-
current_measurement_range_a
-
bandwidth_khz
-
supply_voltage_v
-
temp_ranges
-
package
-
market
-
features
-

ACS71240LLCBTR-050B5-S

basic_isolation_working_voltage_vrms
-
isolation_voltage_vrms
2400
creepage_mm
4.2
clearance_mm
4.2
primary_conductor_resistance_mohm
1.2
current_measurement_range_a
±50
bandwidth_khz
120
supply_voltage_v
5
temp_ranges
-40°C to 150°C
package
8-Pin SOIC
market
Automotive, Industrial
features
Overcurrent Fault

ACS71240LLCBTR-050U5

basic_isolation_working_voltage_vrms
-
isolation_voltage_vrms
-
creepage_mm
-
clearance_mm
-
primary_conductor_resistance_mohm
-
current_measurement_range_a
-
bandwidth_khz
-
supply_voltage_v
-
temp_ranges
-
package
-
market
-
features
-

ACS71240LLCBTR-050U5-S

basic_isolation_working_voltage_vrms
-
isolation_voltage_vrms
2400
creepage_mm
4.2
clearance_mm
4.2
primary_conductor_resistance_mohm
1.2
current_measurement_range_a
50
bandwidth_khz
120
supply_voltage_v
5
temp_ranges
-40°C to 150°C
package
8-Pin SOIC
market
Automotive, Industrial
features
Overcurrent Fault

Discover Allegro's Advanced Magnetic Current Sensors!

Upgrade your designs with efficient, compact, and integrated solutions. Simplify your circuits and reduce component count with Allegro's innovative sensor technology.

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設計ツール

ECAD FILE

ACS71240

ACS71240 ECAD Model Type Image
Gerber File

ASEK71240EX Gerber Files
Gerber File

ASEK71240LC Gerber Files
Simulation Tool

Current Sensor Error and Resolution
Software

Software Portal
Third Party Tool

Pololu Current Sensor Carrier for ACS71240

Technical Documentation

The Role of Sensors in Electric Bicycles: A Comprehensive Guide
Application Note

The Role of Sensors in Electric Bicycles: A Comprehensive Guide

Glossary of Isolation-Related Terms for Integrated Current Sensors
Application Note

Glossary of Isolation-Related Terms for Integrated Current Sensors

Current Sensing in Motor Drives
Application Note

Current Sensing in Motor Drives

Package Thermal Resistance for Allegro Current Sensors with Integrated Conductors
Application Note

Package Thermal Resistance for Allegro Current Sensors with Integrated Conductors

Managing External Magnetic Field Interference When Using ACS71x Current Sensor ICs
Application Note

Managing External Magnetic Field Interference When Using ACS71x Current Sensor ICs

High-Side Vs. Low-Side Current Sensing: Why Placement Matters
Blog

High-Side Vs. Low-Side Current Sensing: Why Placement Matters

Current Sensing Beyond Shunt Resistors for Modern Electronics
Blog

Current Sensing Beyond Shunt Resistors for Modern Electronics

The Future of Sensing and Power in Industrial Automation and Robotics
Brochure

The Future of Sensing and Power in Industrial Automation and Robotics

Lift Designs to the Next Level - Drive Mobile Robots with Unmatched Precision and Control
Brochure

Lift Designs to the Next Level - Drive Mobile Robots with Unmatched Precision and Control

Powering the Humanoid Revolution - Driving Precision, Power, and Safety in Next-Generation Robotics
Brochure

Powering the Humanoid Revolution - Driving Precision, Power, and Safety in Next-Generation Robotics

Enhancing Robotic Design
Brochure

Enhancing Robotic Design

Certificate CB US 42876 UL LC Package
Certificate

Certificate CB US 42876 UL LC Package

Certificate of Compliance 20181207-E316429
Certificate

Certificate of Compliance 20181207-E316429

ACS71240 Samples Programmer
Guide

ACS71240 Samples Programmer

Overcoming Size Challenges in PCB Design with Magnetic Current Sensors
Technical Article

Overcoming Size Challenges in PCB Design with Magnetic Current Sensors

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