Product description: ACS724 current sensor -5 A to 5 A - Pololu 4041
The ACS724 module from Pololu is an advanced current sensor designed by Allegro Microsystems that uses the Hall effect to precisely measure current. The carrier board is compact (17.8 x 20.3 mm) and allows the sensor to be easily incorporated into a variety of electrical circuits , for both low-current and high-current applications. This sensor offers bidirectional current measurement in the range from -5 A to 5 A with a sensitivity of 400 mV/A . 120 kHz high bandwidth analog output provides fast and accurate AC and DC current readings.
ACS724 current sensor -5 A to 5 A - Pololu 4041.
The device enables precise current measurement.
Special features of the sensor
- Hall effect with isolated current path : ensures safety and versatility of installation.
- Low resistance of the current path (about 1.2 mΩ) : minimizes power losses.
- High bandwidth of 120 kHz : enables quick responses to current changes.
- Typical response time 4 µs : ideal for dynamic applications.
- Optional FILTER pin : allows you to add a capacitor for better noise filtration.
- Temperature compensation : ensures accurate measurements over a wide temperature range (-40°C to 150°C).
- Compact board (17.8 x 20.3 mm) : offers ease of integration into various circuits.
- Supports currents in the range of -5 A to 5 A : provides universal applications.
Current sensor applications
The ACS724 module is ideal for a wide range of applications such as:
- Current monitoring in power systems : both AC and DC.
- Battery management systems : charging and discharging monitoring.
- Automotive applications : monitoring currents in vehicles.
- Industrial automation systems : precise current measurement in machines and devices.
- DIY and educational projects : easy to incorporate into breadboard projects.
Compact dimensions enable the sensor to be used in various electrical systems.
Current sensor pins.
Current sensor pins
- IP+ (Positive Current Input): Designed to connect to the positive side of a circuit that has current flowing through it for monitoring.
- IP- (Negative Current Input): Designed to connect to the negative side of a circuit through which current is flowing in order to monitor it.
- VCC (logic power supply): used to provide the supply voltage for the current sensor measurement system. The supply voltage should be between 4.5V and 5.5V.
- OUT: pin from which the analog voltage corresponding to the measured current is read. This signal can be further processed or used to directly monitor the current.
- GND: system ground.
Technical specifications of the sensor
- Built-in chip: Allegro ACS724LLCTR-05AB
- Current measurement range: -5 A to 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: 400 mV/A
- Internal resistance: approximately 1.2 mΩ
- Operating temperature range: from -40°C to 150°C
- Dimensions: 17.8 x 20.3 mm
Set contents
- ACS724 current sensor -5 A to 5 A - Pololu 4041
- Goldpin strip 3-pin pitch 2.54 mm
The product has a built-in ACS724LLCTR-05AB system.
