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ACS773: 200kHz, 1.5% Max Tolerance, 100 µΩ Internal Resistance module-alternative current sensor for high current and high voltage applications

CA/CB 5 pin

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ACS773 Datasheet
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Description

Top Features

Packaging

The ACS773 is an automotive grade, 200KHz Bandwidth Current Sensor IC in Allegro's proprietary CB package. It offers a wide current sensing range (50A to 400A) and very low power loss achieved by the 100 μΩ internal resistance of its conductive path. The ACS773 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 3.3V (ACS773).

The ACS773 is ideal for Automotive application 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 ACS773 has a 2.5μs response time, which is the fastest response time IC ever offered in both the custom – through hole and custom – surface mount Allegro CB packages.

  • AEC-Q100 Grade 1 qualified
  • Typical of 2.5 μs output response time
  • 3.3 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
  • Available in ratiometric and non-ratiometric versions

Target Applications

 

Current sensor CB package lead options

The ACS773 has a 2.5μs response time, which is the fastest response time IC ever offered in both the custom – through hole and custom – surface mount Allegro CB packages.

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 FAQ Selection Guide
Documents Found: 4
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
FAQ
Current Sensors FAQ
Selection Guide
Allegro Product Selection Guide
Filter Document Type:
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All Types Calculator CB Certificate Certificates of Compliance Gerber File SPICE Model
Documents Found: 5
Document Type Document Name
Calculator
Current Sensor Error and Resolution
CB Certificate
Certificate-CB-US-29755-M1-UL
Certificates of Compliance
20170510-E316429 Certificate of Compliance
Gerber File
ASEK773 Gerber Files
SPICE Model
ACS LTspice Library