Texas Instruments INA219
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. The I2C- or SMBUS-compatible interface features 16 programmable addresses.| Part No. | INA219 |
|---|---|
| Datasheet | INA219 Download |
| Manufacturer |  Texas Instruments |
| Description | Bidirectional Current/Power Monitor |
| Buy | Stock & Price |
FEATURES
●1 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 2
APPLICATIONS
● Servers● Telecom Equipment
● Notebook Computers
● Power Management
● Battery Chargers
● Welding Equipment
● Power Supplies
● Test Equipment 3
DESCRIPTION
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 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. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) INA219 SOIC (8) SOT-23 (8) 3.91 mm × 4.90 mm 1.63 mm × 2.90 mm (1) For all available packages, see the orderable addendum at the end of the data sheet.
