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Coreless Differential Current Sensor IC with Common-Mode Rejection

ACS37612

The ACS37612 simplifies high-current sensing with its contactless, coreless design, offering high precision, common-mode field rejection, and a wide sensing range (200A to >1000A).

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Evaluation Board

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Product Detail
Availability
Documentation and Resources

Top Features

Typical Applications

Packaging

Eliminates the need for a concentrator core or a shield
Contactless, lossless current sensing for applications where current flows through busbar or PCB
Differential sensing rejects common-mode stray fields
3.3 and 5.0 V single supply operation
Monolithic Hall IC for high reliability with up to 240 kHz sensor bandwidth
Factory-trimmed sensitivity and offset for improved accuracy

Automotive

High Voltage Traction Inverters
Auxiliary Inverters for Integrated
Starter Generators (iBSG)
- 12V and 48V systems
- Direct Connect or Belt Driven Systems.
Battery Disconnect Junction Boxes
Disconnect and Smart Fuse Functions DC/DC Converter

Industrial

Switching Power Supplies
- DC/DC Converters
- DC/AC Inverters
Grid Infrastructure and Power Distribution

The ACS37612 is offered in a low-profile 8-pin surface mount TSSOP package (thin-shrink small outline package, suffix LU) that is ideal for space-constrained applications, while allowing simple surface mount assembly.

LU Package Documentation

ACS37612 Standalone coreless differential current sensor with contactless current sensing for ACand DC current sensing functional block diagram

ACS37612 Standalone coreless differential current sensor with contactless current sensing for ACand DC current sensing typical application diagram

Part Number Specifications and Availability

The ACS3761X Hall-effect sensor IC solution family is a coreless and shield-free solution, reducing BOM and overall inverter size and weight. These differential sensors reject stray magnetic fields, reducing reliance on software. The family is optimized for a large range of currents, 100 A to >4000 A, making it ideal for automotive applications.

Documentation and Resources

Documentation

Design Tools

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All Types Application Note Brochure FAQ Guide Technical Article

Documents Found: 32

Document Type	Document Name
Application Note	January 31, 2023 PCB Ground Plane Optimization for Coreless Current Sensor Applications
Application Note	Transient Current Behavior in Applications using the Allegro Coreless ACS37610 Differential Current Sensor
Application Note	Guidelines for Designing a Busbar with Notch for Allegro's ACS37612 Differential Coreless Current Sensor
Application Note	Glossary of Isolation-Related Terms for Integrated Current Sensors
Brochure	Brochure: Allegro Coreless Current Sensing
Brochure	Brochure: Battery Management Systems
FAQ	Current Sensors FAQ
Guide	ACS37612 Evaluation Board User Guide
Technical Article	Rethink PCB Current Sensing
Technical Article	Common Driver Platform for 12V and 48V Systems Simplifies EV Starter Generator Designs

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All Types

All Types Calculator Gerber File Simulation Tool SPICE Model Third Party Tool Webpage

Documents Found: 32

Document Type	Document Name
Calculator	Busbar Design for Coreless DC Current Sensors
Calculator	Coreless PCB Calculator
Gerber File	ASEK37612LU 3.5mm EVB Gerber Files
Gerber File	ASEK37612LU 4.5mm EVB Gerber Files
Gerber File	ASEK37612LU 7mm EVB Gerber Files
Gerber File	ASEK37612LU Busbar EVB Gerber Files
Simulation Tool	Busbar Notch Field Simulation for AC and DC Coreless Current Sensor
Simulation Tool	Current Sensor Error and Resolution
SPICE Model	ACS LTspice Library
Third Party Tool	PCB Notch Design for Coreless DC Current Sensor
Webpage	Software Portal