INA3221AIRGV datasheet(4/36 Pages) TI1

Part #	INA3221AIRGV

Description	Triple-Channel, High-Side Measurement, Shunt and Bus Voltage Monitor

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Manufacturer	TI1 [Texas Instruments]

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INA3221

SBOS576 – MAY 2012

www.ti.com

ELECTRICAL CHARACTERISTICS: VS = +3.3 V (continued)

At TA = +25°C, VIN+ = 12 V, VSENSE = (VIN+) – (VIN–) = 0 mV, and VBUS = 12 V, unless otherwise noted.

INA3221

PARAMETER

CONDITIONS

MIN

TYP

MAX

UNIT

POWER SUPPLY

Operating supply range

+2.7

+5.5

V

350

450

μA

Quiescent current

Power-down mode

0.5

2

μA

Power-on reset threshold

2

V

TEMPERATURE RANGE

Specified range

–40

+125

°C

THERMAL INFORMATION

INA3221

THERMAL METRIC(1)

RGV

UNITS

16 PINS

θJA

Junction-to-ambient thermal resistance

36.5

θJCtop

Junction-to-case (top) thermal resistance

42.7

θJB

Junction-to-board thermal resistance

14.7

°C/W

ψJT

Junction-to-top characterization parameter

0.5

ψJB

Junction-to-board characterization parameter

14.8

θJCbot

Junction-to-case (bottom) thermal resistance

3.3

(1)

For more information about traditional and new thermal metrics, see the IC Package Thermal Metrics application report, SPRA953.

4

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