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INA219AIDCNTG4 Datasheet(PDF) 1 Page - Texas Instruments |
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INA219AIDCNTG4 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 37 page ´ Power Register Current Register I C-/SMBUS- Compatible Interface 2 Voltage Register V IN+ VIN- V S (Supply Voltage) A0 A1 Data CLK ADC PGA INA219 GND Product Folder Sample & Buy Technical Documents Tools & Software Support & Community INA219 SBOS448G – AUGUST 2008 – REVISED DECEMBER 2015 INA219 Zerø-Drift, Bidirectional Current/Power Monitor With I2C Interface 1 Features 3 Description The INA219 is a current shunt and power monitor 1 • Senses Bus Voltages from 0 to 26 V with an I2C- or SMBUS-compatible interface. The • Reports Current, Voltage, and Power device monitors both shunt voltage drop and bus • 16 Programmable Addresses supply voltage, with programmable conversion times and filtering. A programmable calibration value, • High Accuracy: 0.5% (Maximum) Over combined with an internal multiplier, enables direct Temperature (INA219B) readouts of current in amperes. An additional • Filtering Options multiplying register calculates power in watts. The • Calibration Registers I2C- or SMBUS-compatible interface features 16 programmable addresses. • SOT23-8 and SOIC-8 Packages The INA219 is available in two grades: A and B. The 2 Applications B grade version has higher accuracy and higher precision specifications. • Servers • Telecom Equipment The INA219 senses across shunts on buses that can vary from 0 to 26 V. The device uses a single 3- to • Notebook Computers 5.5-V supply, drawing a maximum of 1 mA of supply • Power Management current. The INA219 operates from –40°C to 125°C. • Battery Chargers Device Information(1) • Welding Equipment PART NUMBER PACKAGE BODY SIZE (NOM) • Power Supplies SOIC (8) 3.91 mm × 4.90 mm • Test Equipment INA219 SOT-23 (8) 1.63 mm × 2.90 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. Simplified Schematic 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. |
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