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ACS72981 current sensor from 0A to 150A 3.3V Pololu 5279
ID: 1194418
5902186338760
zł63.92
Tax included
zł51.97 tax excl.
Current sensor in the Large Carrier version based on the ACS72981KLRATR-150U3 chip, designed for unidirectional current measurement from 0 A to 150 A with a 3.3 V supply voltage. The module uses Hall-effect sensing, an electrically isolated current path, and an analog output with a sensitivity of 17.6 mV/A proportional to the measured current. Pololu 5279
Description
Current sensor in the Large Carrier version based on the Allegro ACS72981KLRATR-150U3 chip, designed for unidirectional AC and DC current measurement in the range from 0 A to 150 A. Measurement is performed using Hall-effect sensing in a galvanically isolated current path, enabling current monitoring without a direct electrical connection between the measured circuit and the signal circuitry.
The module operates from a supply voltage of 3.0 V to 3.6 V, with a nominal voltage of 3.3 V. The analog VIOUT output provides a voltage proportional to the measured current. The sensitivity is 17.6 mV/A at 3.3 V supply, and the zero-current output voltage is 0.33 V. The low current-path resistance, typically around 0.2 mΩ, minimizes power losses and heat generation when measuring high currents.
A bandwidth of 250 kHz and a response time below 2 µs enable rapid detection of current changes in power supplies, motor drives, DC/DC converters, and energy monitoring systems. The Large Carrier board uses a 6-layer PCB with 2 oz copper to improve heat dissipation under high-current loads. VCC, GND, and VIOUT pins with a 2.54 mm pitch allow easy connection to microcontrollers, breadboards, and measurement circuits.
Features
- Sensor IC: ACS72981KLRATR-150U3
- Sensing technology: Hall effect
- Current measurement range: 0 A to 150 A
- Current measurement type: AC and DC (unidirectional)
- Supply voltage: 3.0 V to 3.6 V
- Nominal supply voltage: 3.3 V
- Output type: analog, proportional to current
- Sensitivity: 17.6 mV/A at 3.3 V
- Zero-current output voltage: 0.33 V at 3.3 V
- Bandwidth: 250 kHz
- Response time: < 2 µs
- Current path resistance: approx. 0.2 mΩ
- Measurement method: in-line, galvanically isolated
- Interface: analog output (VIOUT)
- Supply current: approx. 14 mA
- PCB: 6 layers, 2 oz copper
- Signal pin pitch: 2.54 mm
- Dimensions: 35.6 × 30.5 mm
- Weight: approx. 4.2 g
- Manufacturer: Pololu
- Manufacturer code: 5279
1194418
Data sheet
- Interface
- Sygnał analogowy
- Zakres pomiarowy
- 0 - 150 A
- Sposób podłączenia
- Szeregowy
- Dimension diagrams of the ACS72981xLR Current Sensor Carriers (391,08 kB)
- 3D model of the ACS72981xLR Current Sensor Large Carriers (3,11 MB)
- Drill guide for the ACS72981xLR Current Sensor Large Carriers (18,12 kB)
- ACS72981 datasheet
- Allegro Application Note AN296169: Characterizing System Bandwidth in Complex Current Sensor Applica
- Allegro product page for the ACS72981 Hall-based Current Sensor
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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