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1 MHz Bandwidth, Galvanically Isolated Current Sensors with Overcurrent Fault Detection

ACS732, ACS733

The ACS732/3 current sensors provide high-bandwidth (1MHz) current sensing with user-configurable overcurrent fault detection and galvanic isolation. The ACS732 is designed for 5V operation, while the ACS733 operates at 3.3V.

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AEC-Q100 automotive qualified
High bandwidth, 1 MHz analog output
Differential Hall sensing rejects common-mode fields
High-isolation SOIC16 wide body package provides galvanic isolation for high-voltage applications
Industry-leading noise performance with greatly improved bandwidth through proprietary amplifier and filter design
UL60950-1 (ed. 2) certified
- Dielectric Strength Voltage = 3.6 kV_RMS
- Basic Isolation Working Voltage = 616 V_RMS
Fast and externally configurable overcurrent fault detection
1 mΩ primary conductor resistance for low power loss and high inrush current withstand capability
Options for 3.3 V and 5 V single supply operation
Output voltage proportional to AC and DC current
Factory-trimmed sensitivity and quiescent output voltage for improved accuracy
Nearly zero magnetic hysteresis
Ratiometric output from supply voltage

The ACS732 and ACS733 surface-mount SOIC-16 wide-body package is plated with 100% matte tin, which is compatible with standard lead (Pb) free printed circuit board assembly processes. Internally, the device is lead-free. These devices are fully calibrated prior to shipment from the Allegro factory.

LA Package Documentation

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Part Number Specifications and Availability

Documentation and Resources

Documentation

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All Types Application Note Certificate FAQ Guide

Documents Found: 32

Document Type	Document Name
Application Note	CMTI Comparison for Allegro Integrated Conductor Current Sensors
Application Note	How to Analyze and Compare Allegro Current Sensor and ADC Error Components
Application Note	Differential Current Sensing with the 1 MHz Bandwidth ACS733
Application Note	Techniques to Mitigate Offset Error of ACS732 and ACS733
Application Note	Current Sensing in Motor Drives
Application Note	Package Thermal Resistance for Allegro Current Sensors with Integrated Conductors
Application Note	Glossary of Isolation-Related Terms for Integrated Current Sensors
Certificate	Certificate of Compliance 20170510-E316429
Certificate	Certificate CB US 42444 UL CB Package
Certificate	Certificate of Compliance 20190906-E316429
Certificate	CB Certificate US-32210-M3-UL
Certificate	Certificate CB US 36315 UL MA Package
Certificate	Certificate of Compliance 20160520 E316429
Certificate	CB Certificate US 23711 A2 UL
FAQ	Current Sensors FAQ
Guide	ACS733LA Evaluation Board User Guide

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All Types Gerber File Simulation Tool SPICE Model User Guide Webpage

Documents Found: 32

Document Type	Document Name
Gerber File	ASEK733 Gerber Files
Simulation Tool	Current Sensor Error and Resolution
SPICE Model	ACS LTspice Library
User Guide	ACS732 and ACS733 Evaluation Board User Manual
Webpage	Current Sensor Evaluation Boards Page
Webpage	Software Portal