ACS712 Current Sensor 20A

The ACS712 Current Sensor 20A is a fully integrated, Hall-effect-based linear sensor IC that provides accurate current measurement for both AC and DC signals. This sensor can measure up to ±20A of current and outputs a corresponding analog voltage signal. It is widely used in applications requiring precise current monitoring and control, such as in motor control, load detection, and power management systems.

Key Features:

• Current Range: Measures up to ±20A
• Voltage Output: Proportional to the current flowing through the sensor
• Accuracy: High accuracy and linearity
• Isolation: Galvanic isolation between the primary circuit (high current) and the output (low voltage)
• Power Supply: Single supply operation, typically 5V
• Temperature Stability: Stable performance over a wide temperature range

Technical Specifications:

• Current Range: ±20A
• Sensitivity: 100 mV/A (typical)
• Supply Voltage: 4.5V to 5.5V
• Output Voltage: Analog output ranging from 0.5V to 4.5V (when powered by 5V)
• Response Time: 5 µs
• Bandwidth: 80 kHz
• Accuracy: ±1.5% (typical)
• Operating Temperature: -40°C to +85°C
• Size: Small form factor for easy integration
• Isolation Voltage: 2.1 kV RMS

Applications:

• Motor Control: Used in applications requiring precise motor current monitoring and control.
• Power Management: Ideal for monitoring current in power supplies and battery management systems.
• Load Detection: Used in systems to detect and monitor load currents.
• Overcurrent Protection: Provides protection by detecting overcurrent conditions in various applications.
• Solar Power: Used in solar power systems to monitor the current generated by solar panels.
• Automotive: Applied in automotive systems for current sensing and monitoring.

Datasheet:
For detailed technical information, refer to the ACS712 Current Sensor 20A datasheet.