Description
The 7Semi INA219 3-Channel DC Current Sensor Breakout is a compact module designed for high-side voltage/current monitoring across three independent channels. Each channel supports up to 26 V and 3.2 A with digital output via I²C, making it ideal for system power monitoring, battery management, motor control, IoT devices and multi-channel power analytics in embedded systems.
Technical Specifications:
- Number of Channels: 3 independent measurement channels
- Maximum Bus Voltage: Up to 26 V DC
- Maximum Current Per Channel: Up to 3.2 A
- Monitoring Capabilities: Voltage, Current, and Calculated Power
- Interface: I²C digital communication
- Programmable I²C Addressing: Up to 16 selectable addresses (for multiple boards)
- Accuracy: Up to ~0.5% measurement error (depending variant)
- Low-Side / High-Side Monitoring: Supports high-side measurement (shunt on supply side)
- Sense Resistor: Integrated 0.1 Ω 1% (typical value) for high-accuracy measurement
- Logic Supply: Compatible with 3.3 V or 5 V logic microcontrollers
- Board Format: Breakout board with header/pins for easy integration
Features:
- Triple-channel current and voltage monitoring in one compact module
- High-side measurement up to 26 V without disturbing ground reference
- Digital I²C interface allows easy integration with microcontrollers and SBCs
- Programmable addresses support multiple modules on a single I²C bus
- Low insertion-loss shunt resistor ensures minimal power waste
- Ready-to-use breakout board simplifies integration and measurement setup
Applications:
- Multi-channel battery monitoring systems (battery packs, UPS)
- Motor controller monitoring and overcurrent detection in robotics and machines
- Multi-rail power supply monitoring in embedded systems and power distribution units
- IoT devices and sensor nodes where power usage needs to be tracked or optimized
- Energy-usage analytics, power budgeting and consumption monitoring in development and production