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High-Precision Linear Current Sensor IC with 100µΩ Conductor and Enhanced Accuracy

ACS770xCB

CA/CB 5 pin

The ACS770 delivers precise current sensing with enhanced accuracy, featuring a 100µΩ conductor, piecewise linear temperature compensation, and integrated shield for improved noise immunity.

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Top Features

Packaging

  • Industry-leading total output accuracy achieved with new piecewise linear digital temperature compensation of offset and sensitivity
  • Industry-leading noise performance through proprietary amplifier and filter design techniques
  • 120 kHz typical bandwidth
  • 4.1 μs output rise time in response to step input current
  • 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
  • Ultra-low power loss: 100 μΩ internal conductor resistance
  • Galvanic isolation allows use in economical, high-side current sensing in high voltage systems
  • 4.5 to 5.5 V, single supply operation
  • Output voltage proportional to AC or DC currents
  • Factory-trimmed for accuracy
  • Extremely stable output offset voltage
  • Undervoltage lockout for VCC below specification
  • AEC-Q100 automotive qualified
  • UL certified, File No. E316429

The ACS770 family is lead (Pb) free. All leads are plated with 100% matte tin, and there is no Pb inside the package. The heavy gauge leadframe is made of oxygen-free copper.

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Part Number Specifications and Availability

Documentation and Resources

Documentation

Design Tools

Filter Document Type:
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All Types Application Note Certificate FAQ Technical Article
Documents Found: 32
Document Type Document Name
Application Note
How to Analyze and Compare Allegro Current Sensor and ADC Error Components
Application Note
DC Current Capability and Fuse Characteristics of Current Sensor ICs with 50 to 200 A Measurement Capability
Application Note
Secrets of Measuring Currents Above 50 Amps
Certificate
CB Certificate US-29755-M1-UL
Certificate
Certificate of Compliance 20170510-E316429
Certificate
Certificate CB US 42444 UL CB Package
FAQ
Current Sensors FAQ
Technical Article
Hall Effect Current Sensing in Hybrid Electric Vehicle (HEV) Applications 
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All Types Gerber File Simulation Tool SPICE Model Third Party Tool Webpage
Documents Found: 32
Document Type Document Name
Gerber File
ASEK770 Gerber Files
Simulation Tool
Current Sensor Error and Resolution
SPICE Model
ACS LTspice Library
Third Party Tool
Mikroe Hall Current 7 Click
Webpage
Current Sensor Evaluation Boards Page
Webpage
Software Portal