INA219 Current/Power Monitor: Features, Speicifications and Applications

The INA219 is a current shunt and power monitor with an l2C- or SMBUS-compatible interface. The device monitors both shunt voltage drop and bus supply voltage, with programmable conversion times and filtering. A programmable calibration value, combined with an internal multiplier, enables direct readouts of current in amperes. An additional multiplying register calculates power in watts. The l 2C- or SMBUS-compatible interface features 16 programmable addresses. The INA219 is available in two grades: A and B. The B grade version has higher accuracy and higher precision specifications. The INA219 senses across shunts on buses that can vary from 0 to 26 V. The device uses a single 3- to 5.5-V supply, drawing a maximum of 1 mA of supply current. The INA219 operates from -40°C to 125°C.

• Senses Bus Voltages from 0 to 26 V 

• Reports Current, Voltage, and Power 

• 16 Programmable Addresses 

• High Accuracy: 0.5% (Maximum) Over and filtering. A programmable calibration value, Temperature combined with an internal multiplier, enables direct (INA219B)

• Filtering Options

• Calibration Registers 

• SOT23-8 and SOIC-8 Packages

Texas Instruments INA219AIDR technical specifications, attributes, parameters and parts with similar specifications to Texas Instruments INA219AIDR.

• Servers 

• Telecom Equipment 

• Notebook Computers

• Power Management

• Battery Chargers 

• Welding Equipment

• Power Supplies 

• Test Equipment

The INA219 is a current shunt and power monitor with an I 2C- and SMBus-compatible interface. The device monitors both a shunt voltage drop and bus supply voltage. Programmable calibration value, combined with an internal multiplier, enable readouts of current and power.

Typical Application