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INA3221AIRGV Datasheet(PDF) 24 Page - Texas Instruments

Part # INA3221AIRGV
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

INA3221AIRGV Datasheet(HTML) 24 Page - Texas Instruments

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INA3221
SBOS576 – MAY 2012
www.ti.com
Channel 2 Shunt Voltage Register (Address = 03h, Read-Only)
Full-scale range = 163.8 mV (decimal = 7FF8); LSB (SD0): 40
μV. This register contains the averaged shunt
voltage measurement for channel 2.
BIT
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
NAME
SIGN
SD11
SD10
SD9
SD8
SD7
SD6
SD5
SD4
SD3
SD2
SD1
SD0
—
—
—
POR
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
VALUE
This register stores the current shunt voltage reading, VSHUNT, for channel 2.
Channel 2 Bus Voltage Register (Address = 04h, Read-Only)(1)
Full-scale range = 32.76 V (1) (decimal = 7FF8); LSB (BD0) = 8 mV.
BIT
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
NAME
SIGN
BD11
BD10
BD9
BD8
BD7
BD6
BD5
BD4
BD3
BD2
BD1
BD0
—
—
—
POR
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
VALUE
(1)
While the input range is 26 V, the full-scale range of the ADC scaling is 32.76 V. Do not apply more than 26 V.
This register stores the bus voltage reading, VBUS, for channel 2.
Channel 3 Shunt Voltage Register (Address = 05h, Read-Only)
Full-scale range = 163.8 mV (decimal = 7FF8); LSB (SD0): 40
μV. This register contains the averaged shunt
voltage measurement for channel 3.
BIT
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
NAME
SIGN
SD11
SD10
SD9
SD8
SD7
SD6
SD5
SD4
SD3
SD2
SD1
SD0
—
—
—
POR
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
VALUE
This register stores the current shunt voltage reading, VSHUNT, for channel 3.
Channel 3 Bus Voltage Register (Address = 06h, Read-Only)(1)
Full-scale range = 32.76 V(1) (decimal = 7FF8); LSB (BD0) = 8 mV.
BIT
D15
D14
D13
D12
D11
D10
D9
D8
D7
D6
D5
D4
D3
D2
D1
D0
NAME
SIGN
BD11
BD10
BD9
BD8
BD7
BD6
BD5
BD4
BD3
BD2
BD1
BD0
—
—
—
POR
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
VALUE
(1)
While the input range is 26 V, the full-scale range of the ADC scaling is 32.76 V. Do not apply more than 26 V.
This register stores the bus voltage reading, VBUS, for channel 3.
24
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Product Folder Link(s): INA3221


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