ACS724 current sensor carrier -2,5A to +2,5A - Pololu 4040

Index: PLL-23633
The ACS724 is a current sensor module operating in the -2.5 A to 2.5 A range that uses the Hall effect to perform precise current measurements. The module is designed to work with 5 V systems, has a low resistance of approximately 1.2 mΩ and has galvanic isolation up to 2.4 kV RMS.
ACS724 current sensor carrier -2,5A to +2,5A - Pololu 4040
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Manufacturer: Pololu

Product description: ACS724 current sensor -2.5 A to +2.5 A - Pololu 4040

The ACS724 current sensor module is an electronic component from Pololu that has been designed to precisely measure current in the range from -2.5 A to 2.5 A , using the Hall effect . The sensor has an analog output centered at 2.5 V, which generates an analog voltage of 800 mV / 1 A. The module operates in the voltage range from 4.5 V to 5.5 V with a preferred voltage of 5 V , provides a low internal resistance of the conductive path of approximately 1.2 mΩ and has electrical insulation up to 2.4 kV RMS. Additionally, a 120 kHz passband ensures fast responses in control applications. The module offers flexible connection options, allowing you to solder the wires directly or use solderless connectors.

A green Pololu current sensor module lies on a white background. ACS724 current sensor -2.5 A to +2.5 A - Pololu 4040.

The Pololu current sensor lies on a white background. The device contains electrical insulation of 2.4 kV RMS.

Main features of the sensor

  • It allows precise measurement of bidirectional currents in the range from -2.5 A to 2.5 A
  • It offers a low current path resistance of approximately 1.2 mΩ, which results in low power losses
  • Provides electrical insulation up to 2.4 kV RMS
  • Generates an output voltage proportional to the input current - 800 mV / A for a supply voltage of 5 V
  • It operates on a passband of 120 kHz
  • It operates in a voltage range of 4.5V to 5.5V, with 5V being the preferred voltage
  • Enables direct soldering of wires to the sensor or use of solderless connectors

Current sensor applications

The Pololu current sensor is an ideal solution for monitoring current , e.g. in various types of power supply systems, data acquisition systems, security systems or motor control. Its ability to measure currents in both directions makes it a very versatile tool in electronics.

The green Pololu current sensor module lies upside down on a white background. The current sensor is suitable for monitoring the current in various electrical systems.

Described sensor pins. Current sensor pins.

Current sensor pins

  • IP+ (Positive Current Input) : A pin intended to be connected to the positive side of a circuit carrying current in order to monitor it.
  • IP- (negative current input) : a pin intended to be connected to the negative side of a circuit through which current flows for the purpose of monitoring it.
  • VCC (logic power supply) : used to connect the supply voltage for the current sensor measurement system. The supply voltage should be between 4.5 V and 5.5 V.
  • OUT : output of the system from which an analog voltage proportional to the measured current is read. This signal can be further processed or used for direct current monitoring.
  • GND : system ground.

Technical specifications of the sensor

  • Built-in chip: Allegro ACS724LLCTR-2P5AB
  • Current measurement range: -2.5 A to 2.5 A
  • Passband: 120 kHz
  • Operating voltage range: from 4.5 V to 5.5 V, standard 5 V
  • Sensor sensitivity for 5 V voltage: 800 mV / A
  • Internal resistance: approximately 1.2 mΩ
  • Electrical insulation: up to 2.4 kV RMS
  • Operating temperature range: from -40°C to 150°C
  • Dimensions: 17.8 x 20.3 mm

A current sensor with a set of pins to be soldered lies on a white background. The product has a built-in ACS724LLCTR-2P5AB system.

Package width 7.5 cm
Package height 8.5 cm
Package depth 0.5 cm
Package weight 0.003 kg

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