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INA3221 Datasheet(PDF) 4 Page - Texas Instruments

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Part # INA3221
Description  Triple-Channel, High-Side Measurement, Shunt and Bus Voltage Monitor with I2C- and SMBUS-Compatible Interface
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

INA3221 Datasheet(HTML) 4 Page - Texas Instruments

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IN 3
IN+3
GND
VS
IN+1
IN 1
PV
Critical
1
2
3
4
12
11
10
9
4
INA3221
SBOS576B – MAY 2012 – REVISED MARCH 2016
www.ti.com
Product Folder Links: INA3221
Submit Documentation Feedback
Copyright © 2012–2016, Texas Instruments Incorporated
5 Device Comparison Table
DEVICE
DESCRIPTION
INA226
36-V, Bidirectional, Ultrahigh Accuracy, Low- or High-Side, I2C Out, Current and Power Monitor With Alert
INA219
26-V, Bidirectional, Zero-Drift, High-Side, I2C Out, Current and Power Monitor
INA209
26-V, Bidirectional, Low- or High-Side, I2C Out, Current and Power Monitor and High-Speed Comparator
INA210, INA211, INA212,
INA213, INA214
26-V, Bidirectional, Zero-Drift, High-Accuracy, Low- or High-Side, Voltage Out, Current Shunt Monitor
6 Pin Configuration and Functions
RGV Package
16-Pin VQFN
Top View
Pin Functions
PIN
I/O
DESCRIPTION
NAME
NO.
A0
5
Digital input
Address pin. Connect to GND, SCL, SDA, or VS. Table 1 shows pin settings and
corresponding addresses.
Critical
9
Digital output
Conversion-triggered critical alert; open-drain output.
GND
3
Analog
Ground
IN–1
11
Analog input
Connect to load side of the channel 1 shunt resistor. Bus voltage is the measurement
from this pin to ground.
IN+1
12
Analog input
Connect to supply side of the channel 1 shunt resistor.
IN–2
14
Analog input
Connect to load side of the channel 2 shunt resistor. Bus voltage is the measurement
from this pin to ground.
IN+2
15
Analog input
Connect to supply side of the channel 2 shunt resistor.
IN–3
1
Analog input
Connect to load side of the channel 3 shunt resistor. Bus voltage is the measurement
from this pin to ground.
IN+3
2
Analog input
Connect to supply side of the channel 3 shunt resistor.
PV
10
Digital output
Power valid alert; open-drain output.
SCL
6
Digital input
Serial bus clock line; open-drain input.
SDA
7
Digital I/O
Serial bus data line; open-drain input/output.
TC
13
Digital output
Timing control alert; open-drain output.
VPU
16
Analog input
Pull-up supply voltage used to bias power valid output circuitry.
VS
4
Analog
Power supply, 2.7 V to 5.5 V.
Warning
8
Digital output
Averaged measurement warning alert; open-drain output.


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