Pololu ACS724 Current Sensor Carrier -5A to +5A

Pololu ACS724 Current Sensor Carrier -5A to +5A

This board is a simple carrier of Allegro’s bidirectional ±5A ACS724LLCTR-05AB Hall effect-based linear current sensor, which offers a low-resistance (~1.2 mO) current path and electrical isolation up to 2.4 kV RMS.

12,95 € (Net 10,88 € )

In stock

incl. 19% VAT , plus (S)

Choose tax zone / country of delivery

pack

Product customisation & sourcing & PCBA one-stop service are available with us.

Request personal offer!

Available immediately
Delivery time: 6 - 8 Workdays (DE - int. shipments may differ)

SKU: PO4041
GTIN: 4060137057489
Category: Current sensors
Manufacturers: Pololu
MPN: 4041
Storage Tiers: Maintain

This board is a simple carrier of Allegro’s bidirectional ±5A ACS724LLCTR-05AB Hall effect-based linear current sensor, which offers a low-resistance (~1.2 m?) current path and electrical isolation up to 2.4 kV RMS. This version accepts a bidirectional current input with a magnitude up to 5 A and outputs a proportional analog voltage (400 mV/A) centered at 2.5 V with a typical error of ±1.5%. It operates from 4.5 V to 5.5 V and is intended for use in 5 V systems.

This current sensor is a carrier board or breakout board for Allegro’s ACS724LLCTR Hall effect-based linear current sensors; we therefore recommend careful reading of the ACS724 datasheet (2MB pdf) before using this product. The following list details some of the sensor’s key features:

Differential Hall sensing rejects common-mode fields, so the orientation of the sensor relative to uniform external magnetic fields (e.g. the Earth’s magnetic field) does not affect the measurement.
The conductive path internal resistance is typically 1.2 m?, and the PCB is made with 2-oz copper, so very little power is lost in the module.
Use of a Hall effect sensor means the IC is able to electrically isolate the current path from the sensor’s electronics (up to 2.4 kV RMS), which allows the sensor to be inserted anywhere along the current path and to be used in applications that require electrical isolation.
High 120 kHz bandwidth for faster response times in control applications.
Optional FILTER pin simplifies bandwidth limiting for better noise reduction and improved resolution at lower frequencies.
Integrated digital temperature compensation circuitry allows for near closed loop accuracy over temperature in an open loop sensor.
Automotive-grade operating temperature range of -40°C to 150°C.

The pads are labeled on the bottom silkscreen, as shown in the picture to the right. The silkscreen also shows the direction that is interpreted as positive current flow via the +i arrow.

This carrier features the ACS724LLCTR-05AB, which operates at 5 V and is designed for bidirectional input current from -5 A to +5 A. When Vcc is 5 V, the output voltage is centered at 2.5 V and changes by 400 mV per amp of input current, with positive current increasing the output voltage and negative current decreasing the output voltage.

This board ships assembled with all surface mount components, and a 3×1 strip of 0.1? header pins is included but not soldered in.

Dimensions