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.
ACS724 current sensor -2.5 A to +2.5 A - Pololu 4040.
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 current sensor is suitable for monitoring the current in various electrical systems.
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
The product has a built-in ACS724LLCTR-2P5AB system.
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