ACS37610OK Evaluation Board

ACS37610 Coreless, High Precision, Current Sensor IC in SIP with Common-Mode Field Rejection

Allegro MicroSystems offers evaluation board units which offer a method for quickly evaluating the Allegro current sensor in a lab environment without needing a custom circuit board. 

The evaluation board is used to evaluate the functionality of the ACS37610OK, an economical and precise solution for AC and DC current sensing in busbar and high-current PCB (printed circuit board) applications. Applied current through a busbar or PCB generates a magnetic field which is sensed by the Hall IC. The ACS37610OK outputs an analog signal that varies linearly with the field sensed within the range specified. Differential sensing topology virtually eliminates error from common-mode stray magnetic fields. High isolation is achieved via the no-contact nature of this assembly. 

This guide includes a schematic of the ACS37610OK EVB (evaluation board), measurement and operation techniques, printed circuit board (PCB) layouts, and a bill of materials (BOM). Table 1 below includes the test equipment document (TED) and description of each board for which this document is applicable.

Top Features

Contents

  • Contactless, lossless, noninvasive current sensing
  • Single in-line package (SIP) easily integrates with sensor
    placement perpendicular to busbar, greatly reducing
    misplacement error without the need for a concentrator
    core or shield
  • High operating bandwidth for fast control loops or where
    high-speed switching currents are monitored
  • DC to 210 kHz2 μs typical response time
  • Customer-programmable, high-resolution offset and
    sensitivity trim
  • High accuracy and low noise
  • ±1% typical sensitivity error over temperature
  • ±3 mV typical offset voltage over temperature
  • Ultra-sensitive Hall elements for improved noise
  • 3.3 V and 5 V ratiometric supply operation
  • Ideal for sensing currents from 100 A to >4000 A
  • Multiple gain options available (4 to 60 mV/G)
  • Differential Hall sensing rejects common-mode
    magnetic fields
  • Wide ambient temperature range: –40°C to 150°C
  • Grade 0, AEC-Q100 automotive qualified

Supported Products:

  • ACS37610OK Evaluation Board