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INA3221 Datasheet(PDF) 30 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) 30 Page - Texas Instruments

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INA3221
SBOS576B – MAY 2012 – REVISED MARCH 2016
www.ti.com
Product Folder Links: INA3221
Submit Documentation Feedback
Copyright © 2012–2016, Texas Instruments Incorporated
8.6.2.8 Channel-1 Critical-Alert Limit Register (address = 07h) [reset = 7FF8h]
This register contains the value used to compare to each shunt voltage conversion on channel 1 to detect fast
overcurrent events.
Figure 39. Channel-1 Critical-Alert Limit Register
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
C1L12
C1L11
C1L10
C1L9
C1L8
C1L7
C1L6
C1L5
C1L4
C1L3
C1L2
C1L1
C1L0
—
—
—
RW-0
RW-1
RW-1
RW-1
RW-1
RW-1
RW-1
RW-1
RW-1
RW-1
RW-1
RW-1
RW-1
RW-0
RW-0
RW-0
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 12. Channel-1 Critical-Alert Limit Register Field Descriptions
Bit
Field
Type
Reset
Description
15-3
C1L12-0
R/W
FFFh
Channel-1 critical-alert-limit data bits
2-0
Reserved
R/W
0h
Reserved
8.6.2.9 Warning-Alert Channel-1 Limit Register (address = 08h) [reset = 7FF8h]
This register contains the value used to compare to the averaged shunt voltage value of channel 1 to detect a
longer duration overcurrent event.
Figure 40. Channel-1 Warning-Alert Limit Register
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
W1L12 W1L11 W1L10
W1L9
W1L8
W1L7
W1L6
W1L5
W1L4
W1L3
W1L2
W1L1
W1L0
—
—
—
RW-0
RW-1
RW-1
RW-1
RW-1
RW-1
RW-1
RW-1
RW-1
RW-1
RW-1
RW-1
RW-1
RW-0
RW-0
RW-0
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 13. Channel-1 Warning-Alert Limit Register Field Descriptions
Bit
Field
Type
Reset
Description
15-3
W1L12-0
R/W
FFFh
Channel-1 warning-alert-limit data bits
2-0
Reserved
R/W
0h
Reserved
8.6.2.10 Channel-2 Critical-Alert Limit Register (address = 09h) [reset = 7FF8h]
This register contains the value used to compare to each shunt voltage conversion on channel 2 to detect fast
overcurrent events.
Figure 41. Channel-2 Critical-Alert Limit Register
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
C2L12
C2L11
C2L10
C2L9
C2L8
C2L7
C2L6
C2L5
C2L4
C2L3
C2L2
C2L1
C2L0
—
—
—
RW-0
RW-1
RW-1
RW-1
RW-1
RW-1
RW-1
RW-1
RW-1
RW-1
RW-1
RW-1
RW-1
RW-0
RW-0
RW-0
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 14. Channel-2 Critical-Alert Limit Register Field Descriptions
Bit
Field
Type
Reset
Description
15-3
C2L12-0
R/W
FFFh
Channel-2 critical-alert-limit data bits
2-0
Reserved
R/W
0h
Reserved


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