An EV charging in the left portion of the image with a solar panel array on the right

Replace the Shunt

Discover Allegro’s magnetic current sensors to make your design challenges easier

Technology advancements and the evolution of magnetic current sensors over the last two decades have made them a compelling alternative to traditional shunt-based current sensing circuits. With greater efficiency and isolation, higher bandwidths, smaller size and improved overall performance, engineers and designers can quickly and easily integrate these sensors into their electronic systems.

Packaging Innovation: Designers and engineers face the ongoing challenge of creating electronic systems that are both compact and energy-efficient. Allegro's innovative packages, featuring integrated shunt-less sensor solutions, directly address this challenge. By eliminating the need for external shunt resistors and other discrete components, designers and engineers can achieve significant reductions in both component count and overall circuit size while improving efficiency.

  • Compact design: The integrated magnetic current sensors are significantly smaller, saving valuable board space and reducing the number of components on the bill of materials.
  • Lower heat dissipation: The lower conductor resistance of integrated magnetic current sensors’ lead frames result in cooler system temperatures.
  • Simplified design process: By integrating the functionality of a traditional shunt resistor circuit into a single package, Allegro’s technology simplifies component placement and streamlines the design process.

Related Content

An image of a server farm

Video: ACS37220 Product Overview

The ACS37220 is a magnetic current sensor 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.

Person reviewing design on a computer

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

Magnetic current sensors provide a compact and efficient alternative to traditional current measurement techniques that significantly reduce the size of components on PCBs, crucial for space-constrained electronic designs.

PCB printing facility

Article: Next-Generation Current Measurement: Addressing PCB Design Challenges with Magnetic Current Sensors

Introducing the Next-Generation Current Measurement Series: Advanced magnetic current sensors accurately detect magnetic fields generated by current flow, offering precise current level measurements.

  • ACS37220
  • ACS711
  • ACS71240
  • Eval Board

The ACS37220 is a high-power-density 200A, 150kHz magnetic current sensor for applications requiring an isolation voltage below 100V.

The ACS711 is a Hall-effect linear current sensor with overcurrent fault output for <100 V isolation.

The ACS71240 is a current sensor IC with common-Mode field rejection and overcurrent detection.

ACS37220

图片制造商零件编号描述用于测量传感器类型电流 - 检测可供货数量查看详情
CURRENT SENSOR LOW-RESISTANCEACS37220LEZATR-100B3CURRENT SENSOR LOW-RESISTANCEDC霍尔效应100A1970 - 立即发货查看详情
CURRENT SENSOR LOW-RESISTANCEACS37220LEZATR-100B5CURRENT SENSOR LOW-RESISTANCEDC霍尔效应100A6000 - 立即发货查看详情
CURRENT SENSOR LOW-RESISTANCEACS37220LEZATR-150B3CURRENT SENSOR LOW-RESISTANCEDC霍尔效应100A5793 - 立即发货查看详情
CURRENT SENSOR LOW-RESISTANCEACS37220LEZATR-150B5CURRENT SENSOR LOW-RESISTANCEDC霍尔效应150A5871 - 立即发货查看详情
CURRENT SENSOR LOW-RESISTANCEACS37220LEZATR-200B5CURRENT SENSOR LOW-RESISTANCEDC霍尔效应200A5985 - 立即发货查看详情

ACS711

图片制造商零件编号描述用于测量传感器类型电流 - 检测可供货数量查看详情
CURRENT SENSOR WITH OVERCURRENTACS711KEXLT-30AU-TCURRENT SENSOR WITH OVERCURRENTAC/DC霍尔效应30A0 - 立即发货查看详情
CURRENT SENSOR WITH OVERCURRENTACS711KLCTR-25AU-TCURRENT SENSOR WITH OVERCURRENTAC/DC霍尔效应25A0 - 立即发货查看详情
SENSOR CURRENT HALL 12.5A AC/DCACS711ELCTR-12AB-TSENSOR CURRENT HALL 12.5A AC/DCAC/DC霍尔效应,开环12.5A19747 - 立即发货查看详情
SENSOR CURRENT HALL 31A AC/DCACS711KEXLT-31AB-TSENSOR CURRENT HALL 31A AC/DCAC/DC霍尔效应,开环31A137856 - 立即发货查看详情
SENSOR CURRENT HALL 12.5A AC/DCACS711KLCTR-12AB-TSENSOR CURRENT HALL 12.5A AC/DCAC/DC霍尔效应,开环12.5A3793 - 立即发货查看详情
SENSOR CURRENT HALL 25A AC/DCACS711KLCTR-25AB-TSENSOR CURRENT HALL 25A AC/DCAC/DC霍尔效应,开环25A27603 - 立即发货查看详情
SENSOR CURRENT HALL 15.5A AC/DCACS711KEXLT-15AB-TSENSOR CURRENT HALL 15.5A AC/DCAC/DC霍尔效应,开环15.5A22856 - 立即发货查看详情

ACS7140

图片制造商零件编号描述用于测量传感器类型电流 - 检测可供货数量查看详情
SENSOR CURRENT HALL 10A 12PWRQFNACS71240KEXBLT-010B3SENSOR CURRENT HALL 10A 12PWRQFNAC/DC霍尔效应,开环10A2804 - 立即发货查看详情
SENSOR CURRENT HALL 10A 8SOICACS71240LLCBTR-010B3SENSOR CURRENT HALL 10A 8SOICAC/DC霍尔效应,开环10A7490 - 立即发货查看详情
SENSOR CURRENT HALL 30A 8SOICACS71240LLCBTR-030B3SENSOR CURRENT HALL 30A 8SOICAC/DC霍尔效应,开环30A5536 - 立即发货查看详情
SENSOR CURRENT HALL 50A 12PWRQFNACS71240KEXBLT-050U5SENSOR CURRENT HALL 50A 12PWRQFNAC/DC霍尔效应,开环50A4019 - 立即发货查看详情
SENSOR CURRENT HALL 45A 8SOICACS71240LLCBTR-045B5SENSOR CURRENT HALL 45A 8SOICAC/DC霍尔效应,开环45A809 - 立即发货查看详情
SENSOR CURRENT HALL 50A 8SOICACS71240LLCBTR-050U5SENSOR CURRENT HALL 50A 8SOICAC/DC霍尔效应,开环50A4093 - 立即发货查看详情
SENSOR CURRENT HALL 10A 12PWRQFNACS71240KEXBLT-010B3-115SENSOR CURRENT HALL 10A 12PWRQFNAC/DC霍尔效应,开环10A3000 - 立即发货查看详情
SENSOR CURRENT HALL 30A 12PWRQFNACS71240KEXBLT-030B3SENSOR CURRENT HALL 30A 12PWRQFNAC/DC霍尔效应,开环30A0 - 立即发货查看详情
SENSOR CURRENT HALL 30A 12PWRQFNACS71240KEXBLT-030B5SENSOR CURRENT HALL 30A 12PWRQFNAC/DC霍尔效应,开环30A24 - 立即发货查看详情
CURRENT SENSOR IC WITH COMMON MOACS71240LLCBTR-020U5CURRENT SENSOR IC WITH COMMON MOAC/DC霍尔效应,开环20A0 - 立即发货查看详情

Eval Boards

图片制造商零件编号描述传感器类型感应范围接口可供货数量查看详情
EVAL BOARD FOR ACS37220 100B3ACSEVB-EZ7-37220-100B3EVAL BOARD FOR ACS37220 100B3电流传感器±100A模拟10 - 立即发货查看详情
EVAL BOARD FOR ACS37220 100B5ACSEVB-EZ7-37220-100B5EVAL BOARD FOR ACS37220 100B5电流传感器±100A模拟10 - 立即发货查看详情
EVAL BOARD FOR ACS37220 150B3ACSEVB-EZ7-37220-150B3EVAL BOARD FOR ACS37220 150B3电流传感器±150A模拟9 - 立即发货查看详情
EVAL BOARD FOR ACS37220 150B5ACSEVB-EZ7-37220-150B5EVAL BOARD FOR ACS37220 150B5电流传感器±150A模拟10 - 立即发货查看详情
EVAL BOARD FOR ACS37220 200B5ACSEVB-EZ7-37220-200B5EVAL BOARD FOR ACS37220 200B5电流传感器±200A模拟8 - 立即发货查看详情
EVALUATION BARE BOARDACSEVB-LC8-LZ6EVALUATION BARE BOARD电流传感器-模拟44 - 立即发货查看详情
EVALUATION BARE BOARDACSEVB-EX12EVALUATION BARE BOARD电流传感器-模拟29 - 立即发货查看详情
EVALUATION BARE BOARDACSEVB-LC8-LZ6EVALUATION BARE BOARD电流传感器-模拟44 - 立即发货查看详情
EVALUATION BARE BOARDACSEVB-EX12EVALUATION BARE BOARD电流传感器-模拟29 - 立即发货查看详情
HALL CURRENT 2 CLICKMIKROE-2987HALL CURRENT 2 CLICKmikroBUS™ Click™传感器磁性霍尔效应1 - 立即发货查看详情