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INA219AIDCNR High-Precision Current/Power Monitor with I2C Interface 0.1% Accuracy 26V Range, Low Offset Bidirectional Sensing Tiny SOT-23 Package Programmable Calibration & Alerts
Features
• Senses Bus Voltages from 0 to 26 V 1
• Reports Current, Voltage, and Power
• 16Programmable Addresses
• High Accuracy: 0.5% (Maximum) Over Temperature (INA219B)
• Filtering Options
• Calibration Registers
• SOT23-8 and SOIC-8 Packages
Applications
• Servers
• Telecom Equipment
• Notebook Computers
• Power Management
• Battery Chargers
• Welding Equipment
• Power Supplies
• Test Equipment
Description
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.
INFORMATION
| Category | | |
| Manufacturer | Texas Instruments | |
| Series | | |
| Packaging | Tape & Reel (TR) Cut Tape (CT) Digi-Reel® | |
| Part Status | Active | |
| Function | Current Monitor | |
| Sensing Method | High-Side | |
| Accuracy | ±1% | |
| Voltage - Input | 0V ~ 26V | |
| Current - Output | 10mA | |
| Operating Temperature | -40°C ~ 125°C | |
| Mounting Type | Surface Mount | |
| Package / Case | SOT-23-8 | |
| Supplier Device Package | SOT-23-8 | |
| Base Product Number |
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