Allegro 电流传感器

具有过流故障保护功能低阻抗电流传感器芯片

ACS37220

Markets Served

ACS37220 简化了汽车应用中的大电流感测操作，具有超低导体电阻（<100μΩ），可显著提升系统效率；集成过流故障输出功能，增强系统安全性。提供 QFN 和 SOICW-6 封装，具有设计灵活性。

LiveBench

Product Details

Top Features

  • AEC-Q100 Grade 0, automotive qualified 
  • Ultra-low primary conductor resistance of 100 μΩ for high efficiency and high inrush current capability 
  • Small footprint, 4 mm × 4 mm QFN “EZ” package with wettable flank, suitable for space-constrained automotive applications 
  • Overcurrent fault output with user-configurable threshold to provide fast short-circuit detection for enhanced system protection
Target Application

Part Number Specifications and Availability

View Full Specification Details

ACS37220LEZATR-050B5

basic_isolation_working_voltage_vrms
-
reinforced_isolation_working_voltage_vrms
-
isolation_voltage_vrms
100
creepage_mm
1
clearance_mm
-
primary_conductor_resistance_mohm
0.1
architecture
Bidirectional
current_measurement_range_a
±50
bandwidth_khz
150
supply_voltage_v
5
temp_ranges
-40°C to 150°C
aec_q100
Yes
over_current_fault
Yes
package
7-Pin QFN
market
Automotive, Industrial
quiescent_output_v
2.5
features
Adjustable Overcurrent Fault

ACS37220LEZATR-100B3

basic_isolation_working_voltage_vrms
-
reinforced_isolation_working_voltage_vrms
-
isolation_voltage_vrms
100
creepage_mm
1
clearance_mm
-
primary_conductor_resistance_mohm
0.1
architecture
Bidirectional
current_measurement_range_a
±100
bandwidth_khz
150
supply_voltage_v
3.3
temp_ranges
-40°C to 150°C
aec_q100
Yes
over_current_fault
Yes
package
7-Pin QFN
market
Automotive, Industrial
quiescent_output_v
1.65
features
Adjustable Overcurrent Fault

ACS37220LEZATR-100B5

basic_isolation_working_voltage_vrms
-
reinforced_isolation_working_voltage_vrms
-
isolation_voltage_vrms
100
creepage_mm
1
clearance_mm
-
primary_conductor_resistance_mohm
0.1
architecture
Bidirectional
current_measurement_range_a
±100
bandwidth_khz
150
supply_voltage_v
5
temp_ranges
-40°C to 150°C
aec_q100
Yes
over_current_fault
Yes
package
7-Pin QFN
market
Automotive, Industrial
quiescent_output_v
2.5
features
Adjustable Overcurrent Fault

ACS37220LEZATR-150B3

basic_isolation_working_voltage_vrms
-
reinforced_isolation_working_voltage_vrms
-
isolation_voltage_vrms
100
creepage_mm
1
clearance_mm
-
primary_conductor_resistance_mohm
0.1
architecture
Bidirectional
current_measurement_range_a
±150
bandwidth_khz
150
supply_voltage_v
3.3
temp_ranges
-40°C to 150°C
aec_q100
Yes
over_current_fault
Yes
package
7-Pin QFN
market
Automotive, Industrial
quiescent_output_v
1.65
features
Adjustable Overcurrent Fault

ACS37220LEZATR-150B5

basic_isolation_working_voltage_vrms
-
reinforced_isolation_working_voltage_vrms
-
isolation_voltage_vrms
100
creepage_mm
1
clearance_mm
-
primary_conductor_resistance_mohm
0.1
architecture
Bidirectional
current_measurement_range_a
±150
bandwidth_khz
150
supply_voltage_v
5
temp_ranges
-40°C to 150°C
aec_q100
Yes
over_current_fault
Yes
package
7-Pin QFN
market
Automotive, Industrial
quiescent_output_v
2.5
features
Adjustable Overcurrent Fault

ACS37220LEZATR-200B3

basic_isolation_working_voltage_vrms
-
reinforced_isolation_working_voltage_vrms
-
isolation_voltage_vrms
100
creepage_mm
1
clearance_mm
-
primary_conductor_resistance_mohm
0.1
architecture
Bidirectional
current_measurement_range_a
±200
bandwidth_khz
150
supply_voltage_v
3.3
temp_ranges
-40°C to 150°C
aec_q100
Yes
over_current_fault
Yes
package
7-Pin QFN
market
Automotive, Industrial
quiescent_output_v
1.65
features
Adjustable Overcurrent Fault

ACS37220LEZATR-200B5

basic_isolation_working_voltage_vrms
-
reinforced_isolation_working_voltage_vrms
-
isolation_voltage_vrms
100
creepage_mm
1
clearance_mm
-
primary_conductor_resistance_mohm
0.1
architecture
Bidirectional
current_measurement_range_a
±200
bandwidth_khz
150
supply_voltage_v
5
temp_ranges
-40°C to 150°C
aec_q100
Yes
over_current_fault
Yes
package
7-Pin QFN
market
Automotive, Industrial
quiescent_output_v
2.5
features
Adjustable Overcurrent Fault

ACS37220LMZTR-060B3

basic_isolation_working_voltage_vrms
1097
reinforced_isolation_working_voltage_vrms
565
isolation_voltage_vrms
5656
creepage_mm
8.5
clearance_mm
8.5
primary_conductor_resistance_mohm
0.8
architecture
Bidirectional
current_measurement_range_a
±60
bandwidth_khz
150
supply_voltage_v
3.3
temp_ranges
-40°C to 150°C
aec_q100
Yes
over_current_fault
-
package
6-Pin SOIC
market
Automotive, Industrial
quiescent_output_v
1.65
features
-

ACS37220LMZTR-060B5

basic_isolation_working_voltage_vrms
1097
reinforced_isolation_working_voltage_vrms
565
isolation_voltage_vrms
5656
creepage_mm
8.5
clearance_mm
8.5
primary_conductor_resistance_mohm
0.8
architecture
Bidirectional
current_measurement_range_a
±60
bandwidth_khz
150
supply_voltage_v
5
temp_ranges
-40°C to 150°C
aec_q100
Yes
over_current_fault
-
package
6-Pin SOIC
market
Automotive, Industrial
quiescent_output_v
2.5
features
-

ACS37220 Product Overview

The ACS37220 is a magnetic current sensor offered in a 4x4mm QFN package designed to replace high-power sense resistors in high-current monitoring applications requiring an isolation voltage below 100V. Compared to shunts, this device provides a smaller footprint, higher efficiency and simpler integration.

0:00

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.
Replace the Shunt
replace the shunt solar panel image

设计工具

ECAD FILE

ACS37220

ACS37220 ECAD Model Type Image
ECAD FILE

ACSEVB-MZ6-MY6 Schematic
Gerber File

ACSEVB-MZ6-MY6 PCB Information
Gerber File

MY-6 Package Files
Gerber File

MZ-6 Package Files
Software

Software Portal
Third Party Tool

Mikroe Hall Current 20 Click Add-on Board
Third Party Tool

Pololu ACS37220 Current Sensor Carrier
Third Party Tool

Pololu G2 High-Power Motor Driver

Technical Documentation

Understanding and Minimizing Sensitivity Shifts Due to PCB Layout and Solder Variability for the ACS37220 in EZ Package
Application Note

Understanding and Minimizing Sensitivity Shifts Due to PCB Layout and Solder Variability for the ACS37220 in EZ Package

High-Efficiency EZ Package with Ultralow Power Dissipation in a Compact 16 MM2 Footprint
Application Note

High-Efficiency EZ Package with Ultralow Power Dissipation in a Compact 16 MM2 Footprint

Vias-in-Pad Improves Thermal Performance for Allegro Current Sensors
Application Note

Vias-in-Pad Improves Thermal Performance for Allegro Current Sensors

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

Powering the Future of Material Handling - Driving Efficiency, Safety and Precision in Electric Forklifts
Brochure

Powering the Future of Material Handling - Driving Efficiency, Safety and Precision in Electric Forklifts

Powering the Future, One Cell at a Time: Enabling Safe, High-Efficiency Energy Storage
Brochure

Powering the Future, One Cell at a Time: Enabling Safe, High-Efficiency Energy Storage

Efficient Climate Control, Engineered to Perfection - Driving Performance and Sustainability in Next-Generation Heat Pumps and HVAC Systems
Brochure

Efficient Climate Control, Engineered to Perfection - Driving Performance and Sustainability in Next-Generation Heat Pumps and HVAC Systems

Cooling the Cloud
Brochure

Cooling the Cloud

Robust and Efficient Power Supply Units (PSUs) for Cloud Infrastructure
Brochure

Robust and Efficient Power Supply Units (PSUs) for Cloud Infrastructure

Powering the Pedal Revolution: Driving Efficiency and Natural Control in Next-Gen e-Bicycles
Brochure

Powering the Pedal Revolution: Driving Efficiency and Natural Control in Next-Gen e-Bicycles

ACS37220 EZ Generic Eval Board User Guide
Guide

ACS37220 EZ Generic Eval Board User Guide

Is Your Current Sensing Architecture the Weak Link in Your Steering System
Technical Article

Is Your Current Sensing Architecture the Weak Link in Your Steering System

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

Overcoming Heating Challenges in PCB Design with Magnetic Current Sensors

利用磁电流传感器克服 PCB 设计中的 尺寸挑战
Technical Article

利用磁电流传感器克服 PCB 设计中的 尺寸挑战

下一代电流测量：利用磁电流传感器解决 PCB 设计难题
Technical Article

下一代电流测量：利用磁电流传感器解决 PCB 设计难题

利用磁电流传感器克服 PCB 设计中的 复杂性挑战
Technical Article

利用磁电流传感器克服 PCB 设计中的 复杂性挑战

(Showing 4 (of 19