ACS712 5A Range Current Sensor Module
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Description:
The ACS712 5A Current Sensor Module utilizes a precise, low-offset linear Hall effect circuit with a copper conduction path near the surface of the die. When current flows through the path, it produces a magnetic field, which the Hall IC converts into a proportional voltage output.
This module supports accurate AC and DC current detection up to 5A. The output signal can be read using the analog I/O port of microcontrollers like Arduino, making it ideal for projects requiring current monitoring and protection.
Applications
- Overcurrent protection
- Battery charging systems
- Switch-mode power supplies
- Digital wattmeters
- Programmable current sources
Features
- Low-noise analog signal path
- Bandwidth adjustable via FILTER pin
- 5 µs output rise time for step input current
- Compact SOIC8 package with low profile
- 2.1 kV RMS isolation voltage (pins 1–4 to pins 5–8)
- Single 5.0V supply operation
- Output sensitivity: 66 to 185 mV/A
- Output voltage proportional to AC or DC currents
- Factory-trimmed for high accuracy
- Extremely stable output offset voltage
- Nearly zero magnetic hysteresis
- Ratiometric output from the supply voltage
Specifications:
| Current sensor chip | ACS712ELC-5A |
|---|---|
| Operating Voltage (V) | 4.5V ~ 5.5V DC |
| Measure Current Range | -5 ~ +5A |
| Sensitivity | 100mV/A |
| Length (mm): | 32 |
| Width (mm): | 13 |
| Height (mm): | 13.5 |
Applications
- Motor control
- Load detection and management
- Switched-mode power supplies
- Over-current fault protection
(Note: This device is not intended for automotive applications.)
Important Note
The ACS712 sensor works on the Hall Effect principle. Ensure the magnetic field environment is free from strong interference to maintain accuracy.
Package Includes:
-
1 × ACS712 5A Current Sensor Module
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