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INA3221AIRGVR Datasheet(PDF) 5 Page - Texas Instruments

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Part # INA3221AIRGVR
Description  Triple-Channel, High-Side Measurement, Shunt and Bus Voltage Monitor
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

INA3221AIRGVR Datasheet(HTML) 5 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
INA3221
www.ti.com
SBOS576 – MAY 2012
PIN CONFIGURATIONS
RGV PACKAGE
QFN-16
(Top View)
PIN DESCRIPTIONS
PIN
ANALOG OR DIGITAL
INPUT/OUTPUT
NAME
NO
DESCRIPTION
Address pin. Connect to GND, SCL, SDA, or VS.
A0
5
Digital input
Table 7 shows pin settings and corresponding addresses.
Critical
9
Digital output
Conversion-triggered critical alert; open-drain output.
GND
3
Analog
Ground
Connect to load side of the channel 1 shunt resistor.
IN–1
11
Analog input
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.
Connect to load side of the channel 2 shunt resistor.
IN–2
14
Analog input
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.
Connect to load side of the channel 3 shunt resistor.
IN–3
1
Analog input
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.
Copyright © 2012, Texas Instruments Incorporated
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Product Folder Link(s): INA3221


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