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ID: 1207062
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Compact module for bidirectional current measurement using the galvanically isolated Allegro ACS37030LMYATR-025B3 sensor. A combination of Hall-effect sensing and an inductive coil provides DC to 5 MHz measurement bandwidth, a ±25 A range, and a typical response time of 40 ns. Pololu 5694

24h
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Available quantity: 4
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Description

Current sensor module Pololu 5694 uses the Allegro ACS37030LMYATR-025B3 electrically isolated current sensor. The device provides bidirectional current measurement from -25 A to +25 A and uses two signal paths: a Hall-effect sensor for DC and low-frequency current information and an inductive coil for high-frequency signals. This combination provides measurement bandwidth from DC to 5 MHz and a typical response time of approximately 40 ns.

Sensor operates from a 3.0–3.6 V supply, with 3.3 V nominal operation, and provides a sensitivity of 52.8 mV/A. The analog VOUT output is centered at 1.65 V at zero current and changes proportionally to the measured current. The VREF output provides a zero-current reference for noise-sensitive applications, while the non-ratiometric output characteristic reduces the influence of supply voltage variations on sensitivity and zero point.

Galvanically isolated current path provides a working isolation rating of 1000 VRMS, while the minimum PCB creepage distance is approximately 11.7 mm. The sensor IC current path resistance is typically 0.9 mΩ, helping to reduce power losses. The compact 2-layer PCB uses 2 oz copper, measures approximately 20.3 × 27.9 mm, and weighs approximately 1.8 g.

Features

  • Manufacturer: Pololu
  • Pololu product number: 5694
  • Sensor: Allegro ACS37030LMYATR-025B3
  • Device type: current sensor module
  • Sensing technology: Hall effect + inductive coil
  • Current measurement range: -25 A to +25 A, bidirectional
  • Supply voltage range: 3.0–3.6 V, 3.3 V nominal
  • Sensitivity: 52.8 mV/A
  • Output voltage at 0 A: 1.65 V
  • Outputs: analog VOUT and VREF reference output
  • Measurement bandwidth: DC to 5 MHz
  • Typical response time: 40 ns
  • Current path resistance: typically 0.9 mΩ
  • Supply current: typically 20 mA
  • Isolation: galvanic, 1000 VRMS working isolation rating
  • Minimum PCB creepage distance: 11.7 mm
  • PCB: 2-layer, 2 oz copper
  • Board dimensions: approximately 20.3 × 27.9 mm
  • Weight: approximately 1.8 g
1207062

Data sheet

Interface
Sygnał analogowy
Zakres pomiarowy
±25 A
Sposób podłączenia
Szeregowy

Manufacturer

  • BTC Korporacja sp. z o. o.
  • Ludwinowo Zegrzyńskie 52G
  • 05-140 Ludwinowo Zegrzyńskie
  • Poland
  • [email protected]
  • 22 767 36 20

Responsible person

  • BTC Korporacja sp. z o. o.
  • Ludwinowo Zegrzyńskie 52G
  • 05-140 Ludwinowo Zegrzyńskie
  • Poland
  • [email protected]
  • 22 767 36 20

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