ACS712 20A Hall Current Sensor Module

The 20A Range Current Sensor Module ACS712 consists of a precise, low-offset, linearHall circuitwith a copper conduction path located near the surface of the die. Applied current flowing through this copper conduction path generates a magnetic field in which theHall ICconverts into a proportional voltage.

Sensing and controlling current flow is a fundamental requirement in a wide variety of applications including, over-current protection circuits, battery chargers, switching mode power supplies, digital watt meters, programmable current sources, etc.

The maximum AC or DC that can be detected can reach 20A, and the present current signal can be read via analog I / O port of Arduino.

Note:

ACS712 is based on the Hall detection principle, please try to avoid the magnetic field, when using it as it may impact the reading accuracy.

Connection Diagram:

Features :

1. The low-noise analog signal path
2. Device bandwidth is set via the new FILTER pin
3. 5 s output rise time in response to step input current
4. Small footprint, low-profile SOIC8 package
5. 2.1 kV RMS minimum isolation voltage from pins 1-4 to pins 5-8
6. 5.0 V, single-supply operation
7. 66 to 185 mV/A output sensitivity
8. Output voltage proportional to AC or DC currents
9. Factory-trimmed for accuracy
10. Extremely stable output offset voltage
11. Nearly zero magnetic hysteresis
12. The ratiometric output from the supply voltage.

Package Includes :

1 x 20A Range Current Sensor Module ACS712