INA231
Features
- 1 Bus Voltage Sensing From 0 V to 28 V
- High- or Low-Side Sensing
- Current, Voltage, and Power Reporting
- High Accuracy:
- 0.5% Gain Error (Max)
- 50-μV Offset (Max)
- Configurable Averaging Options
- Programmable Alert Threshold
- 1.8-V I2C pliant
- Power-Supply Operation: 2.7 V to 5.5 V
- Start-Up Mode Options:
- INA231A: Active Conversion
- INA231B: Low-Current Power Down
2 Applications
- Smartphones
- Tablets
- Servers
- puters
- Power Management
- Battery Chargers
- Power Supplies
- Test Equipment
3 Description
The INA231 is a current-shunt and power monitor with a 1.8-V pliant I2C interface that features
16 programmable addresses. The INA231 monitors both shunt voltage drops and bus supply voltage, providing increased protection by asserting the ALERT pin if the values are outside the programmed range. Programmable calibration value, conversion time, and averaging, bined with an internal multiplier, enable direct readouts of current in amperes and power in watts,...
