INA231 Overview
Description
The INA231 is a current-shunt and power monitor with a 1.8-V compliant 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.
Key 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 Compliant
- Power-Supply Operation: 2.7 V to 5.5 V
- Start-Up Mode Options: – INA231A: Active Conversion – INA231B: Low-Current Power Down
