INA226 Bi-directional Current/Power Monitoring Sensor Module

INA226 Bi-directional current/Power monitoring sensor module With I²C interface For Arduino

Description

The INA226 is a current shunt and power monitor with an I2CM- or SMBUS-compatible interface. The device monitors have both a shunt voltage drop and bussupply voltage. Programmable calibration value,conversion times, and averaging, combined with aninternal multiplier, enable direct readouts of current inamperes and power in watts.

The INA226 senses current on common-mode bus voltages that can vary from 0 V to 36 V, independent of the supply voltage. The device operates from a single 2.7V to 5.5V supply, drawing a typical of 330μA of supply current. The device is specified over the operating temperature range between -40°C and 125°C and features up to 16 programmable addresses on the I²C-compatible interface.

Features

• Senses Bus Voltages From 0 V to 36 V
• High-Side or Low- Side Sensing
• Reports Current, Voltage, and Power
• High Accuracy: .
  – 0.1% Gain Error (Max)
  – 10 μV Offset (Max)
• Configurable Averaging Options
• 16 Programmable Addresses
• Operates from 2.7V to 5.5V Power Supply
• 10-Pin, DGS (VSSOP) Package

Pin Description

• VBUS: bus voltage input
• SDA/SCL: IIC bus data and clock signal lines
• ALERT: Multi-function alarm output
• A0/A1: IIC address line
• IN+/IN-: non-inverting analog input, inverting analog input

Diagram

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