NEX ROBOTICS ACS714 User manual

ACS714 5 Amp Hall Effect Current Sensor Module
NEX Robotics Pvt. Ltd. 1
www.nex-robotics.com
ACS714 5Amp Hall Effect Current Sensor Module
Introduction:
The ACS714 5Amp current sensor provides economical and precise solutions for AC or DC
current sensing in robotics and automotive applications. Typical applications include motor
control, load detection and management, switch-mode power supplies, and over current fault
protection. 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. 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 mΩtypical, providing low power loss. The thickness of the copper
conductor allows survival of the device at up to 5× over current conditions. The terminals of
the conductive path are electrically isolated from the signal leads (pins 5 through 8). This
allows the ACS714 to be used in applications requiring electrical isolation without the use of
opto-isolators or other costly isolation techniques.
Specification
•Single 5V supply operation.
•Optimized Input range (IP) : +/- 30Amp
•Sensitivity : 185mV/Amp
•Low noise analog signal path,
•Stable output offset voltage
•Bandwidth is set via a filter capacitor
•1.2mOhm internal copper conductor resistance
•2.1kVRMS minimum isolation voltage
•Ratio metric output is possible from supply voltage

ACS714 5 Amp Hall Effect Current Sensor Module
NEX Robotics Pvt. Ltd. 2
www.nex-robotics.com
Connections
Figure 1: Connections
Figure 2: Circuit diagram
Note: For more information on the ACS714, download datasheet from the product page on
the NEX Robotics website.

ACS714 5 Amp Hall Effect Current Sensor Module
NEX Robotics Pvt. Ltd. 3
www.nex-robotics.com
Notice
The contents of this manual are subject to change without notice. All efforts have been made to ensure the
accuracy of contents in this manual. However, should any errors be detected, NEX Robotics welcomes your
corrections. You can send us your queries / suggestions at
[email protected]
Content of this manual is released under the Creative Commence cc by-nc-sa license. For legal information
refer to: http://creativecommons.org/licenses/by-nc-sa/3.0/legalcode
Product’s electronics is static sensitive. Use the product in static free environment.
Read the user manuals completely before start using this product
Recycling:
Almost all the part of this product are recyclable. Please send this product to the recycling plant after its
operational life. By recycling we can contribute to cleaner and healthier environment for the future generations.