The INA3221 is a three-channel, high-side current and bus voltage monitor with an I 2 C and SMBUS compatible interface. The INA3221 not only monitors the shunt voltage drop and bus supply voltage, it also provides programmable conversion time and average calculation mode for these signals. The INA3221 provides critical and warning alarms to detect multiple programmable out-of-range conditions on each channel.
The INA3221 senses the current on the bus (the voltage varies from 0V to 26V ). This device operates from a single 2.7V to 5.5V supply and consumes 350μA (typ) of supply current . INA3221 rated operating temperature range of -40 ° C to 125 [deg.] C . The I 2 C and SMBUS- compatible interface has four programmable addresses.
characteristic:
-Three-channel monitoring, using individual bus voltages
-0.1 ohm 1% 2W current sense resistor.
-Up to 26V detection voltage with ± 8mV accuracy.
-Up to ± 1.638A current measurement with ± 0.4mA accuracy.
-Weight (excluding pins and other): 4.4g.
-The module can be selected through pad jumpers, using 4 I2C addresses: 0x40, 0x41, 0x44, 0x45.
-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.
-PCB (no header or terminal block): 4.4g.
-This board / chip uses I2C 7-bit addresses 0x40, 0x41, 0x44, 0x45, selectable with jumpers.
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