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Home Product INA3221AQRGVRQ1 Triple-Channel Current/Voltage Monitor Automotive Grade I2C Interface Texas Instruments AEC-Q100
INA3221AQRGVRQ1 Texas Instruments

INA3221AQRGVRQ1 Triple-Channel Current/Voltage Monitor Automotive Grade I2C Interface Texas Instruments AEC-Q100

INA3221AQRGVRQ1
3-channel current monitor
Automotive-grade shunt monitor
INA3221AQRGVRQ1
INA3221AQRGVRQ1: Automotive-grade 3-channel current/shunt monitor for high-precision voltage and current measurement in vehicle systems.
Categories:Electronic components
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Product Description

The INA3221AQRGVRQ1 is an Automotive-grade shunt monitor providing a 3-channel current monitoring solution for systems requiring simultaneous measurement of current, voltage, and power. It supports three independent input channels with shunt resistors and communicates via I2C, enabling direct integration into battery management, infotainment, or powertrain systems. Operating at 2.7V to 5.5V, it functions reliably across -40°C to 125°C, meeting stringent automotive standards. The device delivers high accuracy (±1% gain error) and integrates programmable alerts for overcurrent or undervoltage detection. Designed for electric vehicles and ADAS applications, its advantages include low power consumption, reduced component count, and fault diagnostics. A minor limitation is dependency on external shunt resistors for calibration. This IC simplifies multi-channel monitoring in space-constrained, high-reliability automotive environments.
Parameter Specification
Device Model INA3221AQRGVRQ1
Function 3-channel current monitor
Input Common Mode Voltage Range 0 V to 26 V
Supply Voltage Range 3 V to 5.5 V
Current Measurement Range ±163.84 mV (shunt voltage)
Resolution 12-bit ADC
Accuracy ±1% (max, full-scale)
Shunt Voltage Offset ±100 µV (max)
Interface I²C-compatible
Operating Temperature Range -40°C to +125°C
Certification Automotive-grade shunt monitor (AEC-Q100 Grade 1)
Package QFN-16
question:Why can other suppliers find discontinued models you can't offer?
answer:Other suppliers may source from remaining stock or non-OEM parts, but we prioritize quality and authenticity.
question:Do you provide technical selection support?
answer:Yes, we offer expert technical guidance to help you choose the best products for your needs.
question:Do you accept payment after delivery?
answer:Standard terms require upfront payment, but flexible arrangements may be discussed for trusted clients.
question:Can the company ensure stable product supply?
answer:Yes, we maintain long-term partnerships and strict inventory management.
question:Why is there a transaction fee?
answer:The fee covers payment processing and administrative costs for secure transactions.
question:Why can other suppliers find discontinued models you can't offer?
answer:Other suppliers may source from remaining stock or non-OEM parts, but we prioritize quality and authenticity.
question:Do you provide technical selection support?
answer:Yes, we offer expert technical guidance to help you choose the best products for your needs.
question:Do you accept payment after delivery?
answer:Standard terms require upfront payment, but flexible arrangements may be discussed for trusted clients.
question:Can the company ensure stable product supply?
answer:Yes, we maintain long-term partnerships and strict inventory management.
question:Why is there a transaction fee?
answer:The fee covers payment processing and administrative costs for secure transactions.
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