INA3221 Series

26V, triple channel, 13-bit, i2c output current/voltage monitor w/alerts

Catalog

26V, triple channel, 13-bit, i2c output current/voltage monitor w/alerts

Part	Voltage - Input [Min]	Voltage - Input [Max]	Operating Temperature [Max]	Operating Temperature [Min]	Sensing Method	Accuracy	Mounting Type	Package / Case	Supplier Device Package	Function
Texas Instruments INA3221AIRGVT	0 V	26 V	125 °C	-40 °C	High-Side	0.25 %	Surface Mount	16-VQFN Exposed Pad	16-VQFN (4x4)	Current/Voltage Monitor

Catalog

26V, triple channel, 13-bit, i2c output current/voltage monitor w/alerts

Key Features

• Senses Bus Voltages From 0 V to 26 VReports Shunt and Bus VoltageHigh Accuracy:Offset Voltage: ±80 µV (max)Gain Error: 0.25% (max)Configurable Averaging OptionsFour Programmable AddressesProgrammable Alert and Warning OutputsPower-Supply Operation: 2.7 V to 5.5 VSenses Bus Voltages From 0 V to 26 VReports Shunt and Bus VoltageHigh Accuracy:Offset Voltage: ±80 µV (max)Gain Error: 0.25% (max)Configurable Averaging OptionsFour Programmable AddressesProgrammable Alert and Warning OutputsPower-Supply Operation: 2.7 V to 5.5 V

Description

The INA3221 is a three-channel, high-side current and bus voltage monitor with an I2C- and SMBUS-compatible interface. The INA3221 monitors both shunt voltage drops and bus supply voltages, in addition to having programmable conversion times and averaging modes for these signals. The INA3221 offers both critical and warning alerts to detect multiple programmable out-of-range conditions for each channel. The INA3221 senses current on buses that can vary from 0 V to 26 V. The device is powered from a single 2.7-V to 5.5-V supply, and draws 350 µA (typ) of supply current. The INA3221 is specified over the operating temperature range of –40°C to +125°C. The I2C- and SMBUS-compatible interface features four programmable addresses. The INA3221 is a three-channel, high-side current and bus voltage monitor with an I2C- and SMBUS-compatible interface. The INA3221 monitors both shunt voltage drops and bus supply voltages, in addition to having programmable conversion times and averaging modes for these signals. The INA3221 offers both critical and warning alerts to detect multiple programmable out-of-range conditions for each channel. The INA3221 senses current on buses that can vary from 0 V to 26 V. The device is powered from a single 2.7-V to 5.5-V supply, and draws 350 µA (typ) of supply current. The INA3221 is specified over the operating temperature range of –40°C to +125°C. The I2C- and SMBUS-compatible interface features four programmable addresses.