High-Precision Linear Current Sensor IC with 200µΩ Conductor and Integrated Protection

ACS780

ACS72981 Product Image

The ACS780 offers accurate and efficient current sensing for automotive applications, featuring a coreless design, 200µΩ conductor for low power loss, and integrated protection against common-mode field interference.

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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
  • 4.5 to 5.5 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 ACS780xLR 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

Part Number Specifications and Availability

ACS780 Product Overview

Allegro's family of fully integrated current sensor linear ICs in a core-less package designed to sense AC and DC currents up to 100 A. Allegro’s ACS780/ACS781 are provided in this new automotive-grade, low-profile (1.5 mm thick) sensor IC package that represents the highest current density of any Allegro current sensor IC package to date.

Documentation and Resources

Documentation

Design Tools