Digital Output DC 5.5V ACS712ELC Current Detector Sensor Module For Arduino Short Circuit Detection

Feature

AC current sensor module Maximum 20A
1, the universal module dimensions
2, the main chip: op amps, transformers
3, the working voltage: DC5.5V
4, the output of the switching output
5, the current detection range: AC maximum 20A
6, the current detection resolution can change the resistance parameter settings
7, over-current signal is set to the critical point is adjustable, set the resolution 0.3A
8, with fixed mounting holes for easy fixed installation.

9, The current sensor chips: ACS712ELC-30A
10,The module can measure the positive and negative 20A, corresponding to the analog output 100mV / A
11,Pin 5V power supply, on-board power indicator
12,Using gold plated circuit boards
13,No test current through the output voltage is VCC / 2

14, High accuracy current sensor

Principle

The measuring chip used in this sensor is ACS712ELC-20A, which can measure the current ±20A, the corresponding analog output is 100mV / A; when there is no current, the output voltage is VCC / 2; the sensor avoids the magnetic field influences based on Hall detection principle .

Current sensors operate as the sealed secondary of a current transformer while the conductor carrying the current to be measured functions as a one turns primary. Measurement accuracy can be improved by increasing the number of primary turns. Applications include detection of branch circuit overload and load drop or shutdown. It is a line of fully integrated Hall-effect current sensor IC that provide highly accurate, low noise output voltage signals that are proportional to an applied AC or DC current. These ICs are in high volume production in many applications, including automotive HEV inverters and electronic power steering (EPS) systems, and in industrial and consumer inverters. Current sensor ICs allow design engineers to use Hall-effect-based current sensor ICs in new applications where increased energy efficiency or new operating features are required.

Technical Parameters

Product Name:Current Detection Sensor
Power requirements:+3.0V -5.5V
Signal Type:Analog signal
Interface mode: XH2.54*3
Pin definition:S-Signal output,V-Power,G-Ground,+-Current output,- -Current output

Applications

Output Voltage versus Sensed Current

ACS712 Fully Integrated, Hall Effect-Based Linear Current Sensor IC with 2.1 kVRMS Isolation and a Low-Resistance Current Conductor Features and Benefits

▪ 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

▪ 80 kHz bandwidth

▪ Total output error 1.5% at TA = 25°C

▪ Small footprint, low-profile SOIC8 package

▪ 1.2 mΩ internal conductor resistance

▪ 2.1 kVRMS 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

▪ Ratiometric output from supply voltage