SPECIFICATIONS

Brand Name: NONE

High-concerned chemical: none

Material: Polymer

Origin: Mainland China

Output: Analog Sensor

Theory: Inductance Sensor

Type: Biosensor

Use: Level Sensor

Product Overview

The ACS712 is a classic Hall-effect current
sensor IC. This chip is primarily designed based on the principle of Hall
induction, consisting of a precise low-offset linear Hall sensor circuit and a
copper foil located near the surface of the IC. When current flows through the
copper foil, it generates a magnetic field. The Hall element senses this
magnetic field and induces a linear voltage signal. After passing through
internal amplification, filtering, chopping, and correction circuits, a voltage
signal is output. This signal is output from pin 7 of the chip and directly
reflects the magnitude of the current flowing through the copper foil. The
measurement ranges are divided into three specifications: ±5A, ±20A, and ±30A. The
input and output maintain a good linear relationship within the measurement
range.

• Low noise analog signal path

• Device bandwidth can be set via new filter pin

• 5us output rise time, corresponding to step input current

• 80 kHz bandwidth

• Total output error of 1.5% (at TA = 25°C)

• 1.2 mΩ internal
  conduction resistance

• Minimum insulation voltage of 2.1k VRMS between pins 1-4 and
  5-8

• 5.0 Volt, single supply operation

• 66 to 185 mV/A output sensitivity

• Output voltage proportional to AC or DC current

• Precision calibrated at factory

• Extremely stable output offset voltage

• Near-zero magnetic hysteresis

• Ratiometric output to supply voltage

Product Parameters

• Detection Chip: ACS712T
  ELC-05B/20A/30A

• Supply Voltage: 5V DC

• Current Range:±5A, corresponding analog output 185mV/A

• ±20A, corresponding analog output 100mV/A

• ±30A, corresponding analog output 66mV/A

• When no current passes: Output
  voltage is VCC/2

• Board Dimensions: 32mm*14mm

Note: ACS712
is based on the Hall effect detection principle. Please try to avoid magnetic
field interference during use!

Module Function

LED: Power
Indicator

P-: Measured
Current Output

VCC: Power
Supply Positive

OUT: Analog
Voltage Output

GND: Power
Ground

P+: Measured
Current Input or Output

• P+: Measured Current Input or
  Output

• VCC: Power Supply Positive

• GND: Power Ground

• P-: Measured Current Output

• OUT: Analog Voltage Output

• LED: Power Indicator