Description:The INA3221 is a three-channel, high-side current and bus voltage monitor with an I2C and SMBUS compatible interface.The INA3221 not only monitors the shunt voltage drop and bus supply voltage, but also provides a programmable conversion time and average calculation mode for these signals.The INA3221 provides critical alarms and warning alarms to detect a variety of programmable out-of-range conditions on each channel.The current on the INA3221 sensing bus (voltage varies from 0V to +26V).This device is powered by a single supply from 2.7V to 5.5V, with a supply current consumption of 350A (typical).The INA3221 has a rated operating temperature range of -40C to +125C.The I2C and SMBUS compatible interface has four programmable addresses.Features:Triple-Channel with different bus voltage.0.1 ohm 1% 2W current sense resistor.Up to +26V target voltage, with 8mV resolution.Up to 1.638A current measurement, with 0.4mA resolution.Dimension: 38*32 mm. PCB (no header or terminal block): 4.4g.This board/chip uses I2C 7-bit addresses 0x40, 0x41, 0x44, 0x45, selectable with jumpers.