INA219AIDCNR

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INA219AIDCNR

26V, Bi-Directional, High-Side, I2C Out Current/Power Monitor

Packaging

Package | PIN: DCN | 8
Temp: Q (-40 to 125)
Carrier: Cut Tape
Qty Price
1-9 $1.89
10-24 $1.70
25-99 $1.58
100-249 $1.37
250-499 $1.27
500-749 $1.06
750-999 $0.87
1000+ $0.80

Features

  • Senses Bus Voltages from 0 to 26 V
  • Reports Current, Voltage, and Power
  • 16 Programmable Addresses
  • High Accuracy: 0.5% (Maximum) Over
    Temperature (INA219B)
  • Filtering Options
  • Calibration Registers
  • SOT23-8 and SOIC-8 Packages

Texas Instruments  INA219AIDCNR

The INA219 is a current shunt and power monitor with an I2C- 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 I2C- 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.