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High-Precision Linear Current Sensor IC with 200µΩ Conductor and 3.3V Operation

ACS781

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The ACS781 provides accurate current sensing for automotive applications, featuring a coreless design, 200µΩ conductor, and optimized performance at 3.3V.

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Top Features

Packaging

  • Core-less, micro-sized, 100 A continuous current package
  • Ultra-low power loss: 200 μΩ internal conductor resistance
  • Immunity to common-mode field interference
  • Greatly improved total output error through digitally programmed and compensated gain and offset over the full operating temperature range
  • Industry-leading noise performance 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
  • Monolithic Hall IC for high reliability
  • 3 to 3.6 V, single supply operation
  • 120 kHz typical bandwidth
  • 3.6 μs output rise time in response to step input current
  • Output voltage proportional to AC or DC currents
  • Factory-trimmed for accuracy
  • Extremely stable quiescent output voltage
  • AEC-Q100 automotive qualification

The ACS781xLR 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.

LR Package Documentation

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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 FAQ
Documents Found: 32
Document Type Document Name
Application Note
DC Current Capability and Fuse Characteristics of Current Sensor ICs with 50 to 200 A Measurement Capability
Application Note
Glossary of Isolation-Related Terms for Integrated Current Sensors
FAQ
Current Sensors FAQ
Filter Document Type:
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All Types Gerber File Simulation Tool SPICE Model
Documents Found: 32
Document Type Document Name
Gerber File
ASEK781 Gerber File
Simulation Tool
Current Sensor Error and Resolution
SPICE Model
ACS LTspice Library