Descriptions: ACS712 Current Sensor Module-20A
20A Range Current Sensor Module ACS-712 ACS712 20A Hall Effect Current Sensor Module Straight 3 Pin Range 20A Current Sensor Module For Arduino Uno R3 Raspberry Pi
This current sensor board is based on the Allegro ACS712ELCTR-20A bi-directional hall-effect current sensor chip that detects positive and negative flowing currents in the range of minus 20 Amps to positive 20 Amps. The board operates at 5V DC and the current flow through the sensor is converted to an output voltage starting at 1/2Vcc (or 2.5V) for no current flow and moves up 66mV per amp for positive current or down -66mV per amp for negative current.
- The output voltage at +2 amps would be (2.5V + (0.066 * 2)) = 2.632 V
- The output voltage at -5 amps would be (2.5V – (0.066 * 5)) = 2.170
- Supply Voltage: 4.5V~5.5V DC
- Measure Current Range: -20A~ 20A
- Sensitivity: 66mV/A
- The current sensor chips: ACS712ELC
- Current Range: 20A
- Pin 5V power supply, on-board power indicator;
- The module can measure the positive and negative 30 amps, corresponding to the analog output 66mV / A;
- No test current through the output voltage is VCC / 2;
- PCB board size: 31x13mm
Note: ACS712 is based on Hall detection principle, please try to avoid the magnetic field, when using as it may impact the reading accuracy.
- The low-noise analog signal path
- Device bandwidth is set via the new FILTER pin
- 5 µs output rise time in response to step input current
- Small footprint, low-profile SOIC8 package
- 2.1 kV RMS minimum isolation voltage from pins 1-4 to pins 5-8
- 5.0 V, single-supply operation
- 66 to 185 mV/A output sensitivity
- Output voltage proportional to AC or DC currents
- Factory-trimmed for accuracy
- Extremely stable output offset voltage
- Nearly zero magnetic hysteresis
- The ratio metric output from the supply voltage.
- Motor control
- Load detection and management
- Switched-mode power supplies
- Over current fault protection.
- 1 x 20A Range ACS-712 ACS712 20A Hall Effect Current Sensor Module ACS 712 Straight Pin Range 20A Current Sensor Module For Arduino Uno R3 Raspberry Pi