ACS712 30A Current Sensor Module

MD0084

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Detail about ACS712 30A Current Sensor Module

The AllegroTM ACS712 provides economical and precise solutionsforACorDCcurrentsensinginindustrial, commercial, and communications systems. The device package allows for easy implementation by the customer. Typical applications include motor control, load detection and management, switch- mode power supplies, and overcurrent fault protection. The device is not intended for automotive applications.

The device consists of a precise, low-offset, linear Hall circuit with a copper conduction path located near the surface of the die. Applied current flowing through this copper conduction path generates a magnetic field which the Hall IC converts into a proportional voltage. Device accuracy is optimized through the close proximity of the magnetic signal to the Hall transducer. A precise, proportional voltage is provided by the low-offset, chopper-stabilized BiCMOS Hall IC, which is programmed for accuracy after packaging.

The output of the device has a positive slope (>VIOUT(Q)) when an increasing current flows through the primary copper conduction path (from pins 1 and 2, to pins 3 and 4), which is the path used for current sampling. The internal resistance of this conductive path is 1.2 mΩ typical, providing low power loss. The thickness of the copper conductor allows survival of the device at up to 5× overcurrent conditions. The terminals of the conductive path are electrically isolated from the signal leads (pins 5 through 8). This allows the ACS712 to be used in applications requiring electrical isolation without the use of opto-isolators or other costly isolation techniques.

Features

  • Brand new 30A Range ACS712 Current Sensor Module
  • Current sensor chip: ACS712ELC-30A
  • Pin 5V power supply, on-board power indicator
  • The module can measure the positive and negative 30A, corresponding to the analog output 66mV/A
  • There is no the detection current through, the output voltage is VCC/2
  • Great for DIY project  
  • 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

Specifications

  • Material: PCB
  • Module: ACS712
  • Chipset: ACS712ELC-30A
  • Voltage: 5V
  • Color: Green + Blue
  • Package Dimension: 32*14*14mm
  • Weight: 7g

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ACS712 30A Current Sensor Module

ACS712 30A Current Sensor Module

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