Description
The 7Semi ACS71020 Hall-effect Power Monitoring and Overcurrent Detection Breakout is a high-precision power-measurement module designed for AC and DC power systems. It is based on the ACS71020 isolated power-monitoring IC which measures current, voltage, active, reactive and apparent power, and power factor, while providing overcurrent and fault detection. The module features digital output via I²C or SPI and includes galvanic isolation for safe integration in high-voltage applications such as energy monitors, smart power controllers and industrial protection systems.
Technical Specifications:
- Current Measurement Range: Up to approximately 90 A depending on variant
- Power Measurements: Active, reactive, apparent power and power factor
- Voltage and Current Output: RMS measurement capability
- Interface: I²C and SPI digital communication
- Isolation: Reinforced isolation up to approximately 517 VRMS
- Primary Conductor Resistance: ~0.85 mΩ low insertion loss
- Measurement Bandwidth: ~1 kHz
- Fault Handling: Overcurrent, overvoltage, undervoltage detection
- Supply Voltage: Typically operates from 3.3 V or 5 V
- IC Package: 16-pin wide-body SOIC mounted on breakout PCB
Features:
- Real-time monitoring of current, voltage and power parameters
- Built-in isolation eliminates need for external current transformers
- Digital interface options for microcontroller, SBC or FPGA integration
- Programmable fault thresholds for system protection
- Minimal heat loss due to low primary-path resistance
- Ready-to-use breakout board simplifies development and evaluation
Applications:
- Single-phase AC or DC power monitoring
- Smart energy meters and energy-usage analytics
- Motor control, industrial automation and machinery monitoring
- Overcurrent protection and circuit fault detection systems
- UPS, inverter, solar and battery power-management systems
- IoT-enabled power-monitoring and remote telemetry