Texas Instruments INA220BQDGSRQ1

Description
The INA220B-Q1 is a current shunt and power monitor with a 2-wire interface. It monitors both shunt drop and supply voltage. A programmable calibration value, combined with an internal multiplier, enables direct readouts in amperes. An additional multiplying register calculates power in watts. The 2-wire interface features 16 programmable addresses. The separate shunt input on the INA220B-Q1 device allows it to be used in systems with low-side sensing.
The INA220B-Q1 device is available in two grades: A and B. The B grade version has higher accuracy and higher precision specifications.
The INA220B-Q1 device senses across shunts on buses that can vary from 0 V to 26 V, useful for low-side sensing or CPU power supplies. The device uses a single 3 V to 5.5 V supply, drawing a maximum of 1 mA of supply current. The INA220B-Q1 device operates from -40°C to 125°C.

Features
High- or low-side, bidirectional current power monitor with 2-wire interface
Qualified for automotive applications
High- or low-side sensing
Senses bus voltages from 0 V to 26 V
Reports current, voltage, and power
16 programmable addresses
High accuracy: 0.5% (Max) over temperature (INA220B-Q1)
User-programmable calibration
Fast (3.4 MHz) 2-wire mode
MSOP-10 package

Applications
Automotive
Servers
Telecom equipment
Notebook computers
Power management
Battery chargers