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INA3221AQRGVRQ1 +BOM

AEC-Q100, 26V, triple channel, 13-bit, i2c output current/voltage monitor w/alerts

Manufacturer:

TI
Mfr.Part #:

INA3221AQRGVRQ1
Datasheet:

INA3221AQRGVRQ1 Datasheet (PDF)
Series:

Automotive, AEC-Q100
Function:

Current/Voltage Monitor
Sensing Method:

High/Low-Side
Accuracy:

±0.25%
EDA/CAD Models:

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INA3221AQRGVRQ1 X-Ray Inspection

X-Ray inspection ensures product integrity by detecting internal defects without damaging external packaging. It reduces failure rates and enhances production efficiency, making it indispensable in the electronics components industry.

INA3221AQRGVRQ1 General Description

The INA3221-Q1 is a three-channel, high-side current and bus voltage monitor with an I²C- and SMBUS-compatible interface. The INA3221-Q1 monitors both shunt voltage drops and bus supply voltages, in addition to having programmable conversion times and averaging modes for these signals. The INA3221-Q1 offers both critical and warning alerts to detect multiple programmable out-of-range conditions for each channel.

The INA3221-Q1 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-Q1 is specified over the operating temperature range of –40 °C to +125 °C. The I²C- and SMBUS-compatible interface features four programmable addresses.

Key Features

Qualified for automotive applications
AEC-Q100 qualified with the following results:
- Device temperature grade 1: –40 °C to 125 °C
Functional Safety-Capable
- Documentation available to aid functional safety system design
Senses bus voltages from 0 V to 26 V
Reports shunt and bus voltage
High accuracy:
- Offset voltage: ±80 μV (maximum)
- Gain error: 0.25% (maximum)
Configurable averaging options
Four programmable addresses
Programmable alert and warning outputs
Power-supply operation: 2.7 V to 5.5 V

Application

• Infotainment
• Rear-seat entertainment
• Digital clusters
• Electronic control units

Specifications

Category	Integrated Circuits (ICs)Power Management (PMIC)Current Regulation/Management	Series	Automotive, AEC-Q100
Function	Current/Voltage Monitor	Sensing Method	High/Low-Side
Accuracy	±0.25%	Voltage - Input	0V ~ 26V
Current - Output	-	Operating Temperature	-40°C ~ 125°C
Mounting Type	Surface Mount	Base Product Number	INA3221
Common-mode voltage (max) (V)	26	Common-mode voltage (min) (V)	0
Input offset (±) (max) (µV)	80	Input offset drift (±) (max) (µV/°C)	0.5
Input offset drift (±) (typ) (µV/°C)	0.1	Voltage gain (V/V)	1
CMRR (min) (dB)	110	Supply voltage (max) (V)	5.5
Supply voltage (min) (V)	2.7	Iq (max) (mA)	0.35
Digital interface	I2C, SMBus	Gain error (%)	0.25
Gain error drift (±) (max) (ppm/°C)	50	Features	Alert Function, Bi-directional, Bidirectional, Low-side Capable
Number of channels	3	Resolution (Bits)	13
Power measurement accuracy (%)	0.5	TI functional safety category	Functional Safety-Capable
Rating	Automotive	Operating temperature range (°C)	-40 to 125