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INA3221 Datasheet(PDF) 31 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) 31 Page - Texas Instruments

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31
INA3221
www.ti.com
SBOS576B – MAY 2012 – REVISED MARCH 2016
Product Folder Links: INA3221
Submit Documentation Feedback
Copyright © 2012–2016, Texas Instruments Incorporated
8.6.2.11 Channel-2 Warning-Alert Limit Register (address = 0Ah) [reset = 7FF8h]
This register contains the value used to compare to the averaged shunt voltage value of channel 2 to detect a
longer duration overcurrent event.
Figure 42. Channel-2 Warning-Alert Limit Register
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
W2L12 W2L11 W2L10
W2L9
W2L8
W2L7
W2L6
W2L5
W2L4
W2L3
W2L2
W2L1
W2L0
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 15. Channel-2 Warning-Alert Limit Register Field Descriptions
Bit
Field
Type
Reset
Description
15-3
W2L12-0
R/W
FFFh
Channel-2 warning-alert-limit data bits
2-0
Reserved
R/W
0h
Reserved
8.6.2.12 Channel-3 Critical-Alert Limit Register (address = 0Bh) [reset = 7FF8h]
This register contains the value used to compare to each shunt voltage conversion on channel 3 to detect fast
overcurrent events.
Figure 43. Channel-3 Critical-Alert Limit Register
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
C3L12
C3L11
C3L10
C3L9
C3L8
C3L7
C3L6
C3L5
C3L4
C3L3
C3L2
C3L1
C3L0
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 16. Channel-3 Critical-Alert Limit Register Field Descriptions
Bit
Field
Type
Reset
Description
15-3
C3L12-0
R/W
FFFh
Channel-3 critical-alert-limit data bits
2-0
Reserved
R/W
0h
Reserved
8.6.2.13 Channel-3 Warning-Alert Limit Register (address = 0Ch) [reset = 7FF8h]
This register contains the value used to compare to the averaged shunt voltage value of channel 3 to detect a
longer duration overcurrent event.
Figure 44. Channel-3 Warning-Alert Limit Register
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
W3L12 W3L11 W3L10
W3L9
W3L8
W3L7
W3L6
W3L5
W3L4
W3L3
W3L2
W3L1
W3L0
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 17. Channel-3 Warning-Alert Limit Register Field Descriptions
Bit
Field
Type
Reset
Description
15-3
W3L12-0
R/W
FFFh
Channel-3 warning-alert limit data bits
2-0
Reserved
R/W
0h
Reserved


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