30A Current Sensor Module ACS712 ELCTR-30A

30A Current Sensor Module 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.

The 30A Current Sensor Module ACS712 consists of a precise, low-offset, linear Hall sensor 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 is sensed by the integrated Hall IC and converted into a proportional voltage. 30A Current Sensor Module ACS712 accuracy is optimized through the close proximity of the magnetic signal to the Hall transducer.

The 30A Current Sensor Module ACS712 is provided in a small, surface mount SOIC8 package. The lead frame is plated with 100% matte tin, which is compatible with standard lead (Pb) free printed circuit board assembly processes. Internally, the device is Pb-free, except for flip-chip high-temperature Pb-based solder balls, currently exempt from RoHS. The device is fully calibrated prior to shipment from the warehouse.

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 sensing. The internal resistance of this conductive path is 1.2 mΩ typical, providing low power loss. This allows the ACS712 current sensor to be used in applications requiring electrical isolation without the use of opto-isolators or other costly isolation techniques.

Features: –

• Low-noise analog signal path
• Device bandwidth 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
• Ratio-metric output from supply voltage

30A Current Sensor Module ACS712 Specifications: –

• Supply Voltage: 4.5V~5.5V DC
• Measure Current Range: -30A~ 30A
• Sensitivity: 66mV/A
• Measures both AC and DC current
• Available as 5A, 20A and 30A module
• Provides isolation from the load
• Easy to integrate with MCU, since it outputs analog voltage
• Scale Factor

30A Current Sensor Module ACS712 Pin Description: –

Datasheet: –

sparkfun.com/…ets/BreakoutBoards/0712.pdf

Package: –

1 x 30A Current Sensor Module ACS712 ELCTR-30A

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