INA226AQDGSRQ1

1 Features

• AEC-Q100 Qualified With the Following Results:

– Device Temperature Grade 1: –40°C to 125°C – Device HBM ESD Classification 2 – Device CDM ESD Classification C4B

• 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 2.7-V to 5.5-V Power Supply

• 10-Pin, DGS (VSSOP) Package

2 Applications

• HEV/EV Battery Management

• Body Control Modules

• Automatic Lock Motor Control

• Automatic Window Motor Control

• Valve Control

3 Description

The INA226-Q1 is a current shunt and power monitor with an I2C™- or SMBUS-compatible interface. The device monitors both a shunt voltage drop and bus supply voltage. Programmable calibration value, conversion times, and averaging, combined with an internal multiplier, enable direct readouts of current in amperes and power in watts.

The INA226-Q1 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 2.7-V to 5.5-V supply, drawing a typical of 330 μA 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.

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