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ACS772: 200kHz, 1.5% Max Tolerance, 100 µΩ Internal Resistance Module-alternative Current Sensor for High Current and High Voltage Applications

CA/CB 5 pin

ACS772 ECAD Model
ACS772 Datasheet
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Description

Top Features

Packaging

The ACS772 is an automotive grade, 200 KHz Bandwidth Current Sensor IC in Allegro’s proprietary CB package. It offers a wide current sensing range (50 A to 400 A) and very low power loss achieved by the 100 μΩ internal resistance of its conductive path. The ACS772 achieve the highest performance in the CB package family with an accuracy of +/-2.1% over the lifetime of the IC from room to hot temperature. The 2.5 μs response time enables overcurrent fault detection in safety-critical applications while the Reinforced Galvanic Isolation reduces the bill of materials. It works off of a single 5 V supply (ACS772) or 3.3 V (ACS773).

The ACS772 is ideal for automotive applications such as OBC, DC/DC converters and Inverter control as well as for industrial applications such as motor control, load detection and management and power supplies.

This sensor is provided in an Allegro custom CB package offering a very small form footprint, lower ICC and higher accuracy over current sensor modules offered by competing solutions. The ACS772 has a 2.5μs response time, which is the fastest response time IC ever offered in the custom Allegro CB package.

  • AEC-Q100 Grade 1 qualified
  • Typical of 2.5 μs output response time
  • 5 V supply operation
  • Ultra-low power loss: 100 μΩ internal conductor resistance
  • Reinforced galvanic isolation allows use in economical, high-side current sensing in high-voltage systems
  • 4800 Vrms dielectric strength certified under UL60950-1
  • Industry-leading noise performance with greatly improved bandwidth through proprietary amplifier and filter design techniques
  • Integrated shield greatly reduces capacitive coupling from current conductor to die due to high dV/dt signals, and prevents offset drift in high-side, high-voltage applications
  • Greatly improved total output error through digitally programmed and compensated gain and offset over the full operating temperature range
  • Small package size, with easy mounting capability
  • Monolithic Hall IC for high reliability
  • Output voltage proportional to AC or DC currents
  • Factory-trimmed for accuracy
  • Extremely stable output offset voltage

Target Applications

Current sensor CB package lead options

This sensor is provided in an Allegro custom CB package offering a very small form footprint, lower ICC and higher accuracy over current sensor modules offered by competing solutions. The ACS772 has a 2.5μs response time, which is the fastest response time IC ever offered in the custom Allegro CB package.

CB PFF Package Documentation

CB PSF Package Documentation

CB PSS Package Documentation

CB SMT Package stp Model

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Part Number Specifications and Availability

Documentation and Resources

Documentation

Design Tools

Filter Document Type:
All Types
All Types Application Note Brochure FAQ
Documents Found: 32
Document Type Document Name
Application Note
Improved Performance and Features of Allegro’s Next Generation, High Power Density CB Package Current Sensors
Application Note
DC Current Capability and Fuse Characteristics of Current Sensor ICs with 50 to 200 A Measurement Capability
Brochure
Brochure: Driving Change by Advancing Personal Mobility Through Cutting-Edge Technology
FAQ
Current Sensors FAQ
Filter Document Type:
All Types
All Types CB Certificate Certificates of Compliance Gerber File Simulation Tool SPICE Model User Guide
Documents Found: 32
Document Type Document Name
CB Certificate
Certificate-CB-US-29755-M1-UL
Certificates of Compliance
20170510-E316429 Certificate of Compliance
Gerber File
ASEK772 Gerber Files
Simulation Tool
Current Sensor Error and Resolution
SPICE Model
ACS LTspice Library
User Guide
ASEK772ECB-200B-T Evaluation Board User Guide
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