This is a type of current sensor that measures the electrical current flowing through a conductor by utilizing the Hall effect. The Hall effect is the production of a voltage difference (Hall voltage) across a conductor when an electric current flows through it and it is subjected to a magnetic field that is perpendicular to the current direction.
Part Number: ACS712, ACS712ELCTR-05B-T
Function : Fully Integrated / Hall Effect-Based Linear Current Sensor
Package: SOIC 8 Pin
Manufacturer: Allegro MicroSystems
Image
Description
The Allegro ACS712 provides economical and precise solutions for AC or DC current sensing in industrial, commercial, and communications systems. The device package allows for easy implementation by the customer. Typical applications include motor control, load detection and management, switched-mode power supplies, and overcurrent fault protection.
Pinout
Features and Benefits
1. Low-noise analog signal path
2. Device bandwidth is set via the new FILTER pin
3. 5 μs output rise time in response to step input current
4. 80 kHz bandwidth
5. Output voltage proportional to AC or DC currents
6. Factory-trimmed for accuracy
7. Extremely stable output offset voltage
8. Nearly zero magnetic hysteresis
9. Ratiometric output from supply voltage
Terminal List Table
Number | Name | Description
1 and 2, IP+ : Terminals for current being sensed; fused internally
3 and 4, IP– : Terminals for current being sensed; fused internally
5, GND : Signal ground terminal
6, FILTER : Terminal for external capacitor that sets bandwidth
7, VIOUT : Analog output signal
8, VCC : Device power supply terminal
ACS712 Datasheet
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