VMA323
V. 01 – 12/03/2018
3
©Velleman nv
5.
Overview
VMA323
The Allegro
®
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.
supply voltage: 5 VDC
measurement range: -20 to +20 A
output voltage: VCC/2 at no load
scale factor: 100 mV per A
dimensions : 31 x 13 x 12 mm
6.
Pin Layout
1
load positive
4
ground
2
VCC - 5 V
5
analogue output
3
load negative
7.
Example
1.
computer
2.
Arduino
®
UNO
3.
10 Ω potentiometer rated for 3.16 A
4.
DC power supply
5.
ACS712 module
6.
step-down constant current, constant voltage power supply