Texas Instruments

INA3221AIRGVR

Current Regulation/Management

Manufacturer
MPN
INA3221AIRGVR
Package / Case
QFN-16-EP
Key Attributes
Triple-Channel, High-Side Measurement, Shunt and Bus Voltage Monitor with I²C- and SMBUS-Compatible Interface

Technical Specifications

TypeDescription
FeaturesProgrammable threshold alarm;Digital output interface;High-side detection;Integrated ADC
Output Current-
Slew Rate Vus-
Operating Temp-40°C ~ +125°C
Gain Db-
Voffset Drift Uv0.5
Common Mode Rejection Ratio120.0
Dual Supply-
Iq A0 A
TypeDescription
Voffset V500 V
Channels3.0
Vcm - Common Mode Voltage-300mV~26V
Bandwidth-
Input Voltage (Vin)2.7V~5.5V
Ib - Input Bias Current10uA
Differential Voltage+/-26V
Noise density(eN)-
Package / CaseQFN-16-EP

Product Introduction

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.

Features

  • Senses Bus Voltages From 0 V to 26 V
  • Reports Shunt and Bus Voltage
  • High Accuracy:
  • Offset Voltage: ±80 μV (max)
  • Gain Error: 0.25% (max)
  • Configurable Averaging Options
  • Four Programmable Addresses
  • Programmable Alert and Warning Outputs
  • Power-Supply Operation: 2.7 V to 5.5 V

Applications

  • - Computers - Power Management - Telecom Equipment - Battery Chargers - Power Supplies - Test Equipment

Datasheet

📄 Open Download

Compliance & Export Codes

TypeDetails
RoHSROHS3
ECCNEAR99
CNHTS8542339000
USHTS8542330001
TARIC8542339000
TypeDetails
CAHTS8542330000
BRHTS85423390
INHTS85423300
MXHTS8542.33.99

Sourcing Information

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