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INA233 Datasheet(PDF) 34 Page - Texas Instruments

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Part # INA233
Description  High-Side or Low-Side Measurement, Bidirectional Current and Power Monitor With I2C-, SMBus-, and PMBus-Compatible Interface
PDF  48 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

INA233 Datasheet(HTML) 34 Page - Texas Instruments

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34
INA233
SBOS790 – APRIL 2017
www.ti.com
Product Folder Links: INA233
Submit Documentation Feedback
Copyright © 2017, Texas Instruments Incorporated
7.6.3 Manufacturer-Specific PMBus Commands
7.6.3.1 MFR_ADC_CONFIG (D0h) [default = 01000001 00100111]
The MFR_ADC_CONFIG command settings control the operating modes for the device ADC. This command
controls the conversion time settings for both the shunt and bus voltage measurements as well as the averaging
mode used. The operating mode that controls what signals are selected to be measured is also set with this
command. Reading with the MFR_ADC_CONFIG command can be done at any time without affecting the device
settings or a conversion in progress. Writing with the MFR_ADC_CONFIG command halts any conversion in
progress until the write sequence is completed, resulting in a new conversion starting based on the updated
contents. This halt prevents any uncertainty in the conditions used for the next completed conversion.
Figure 35. MFR_ADC_CONFIG
15
14
13
12
11
10
9
8
—
—
—
—
AVG2
AVG1
AVG0
VBUSCT2
R-0
R-1
R-0
R-0
R/W-0
R/W-0
R/W-0
R/W-1
7
6
5
4
3
2
1
0
VBUSCT1
VBUSCT0
VSHCT2
VSHCT1
VSHCT0
MODE3
MODE2
MODE1
R/W-0
R/W-0
R/W-1
R/W-0
R/W-0
R/W-1
R/W-1
R/W-1
Table 23. MFR_ADC_CONFIG Field Descriptions
Bit
Field
Type
Default
Description
15
—
R
0
Reserved.
14
1
13:12
0
11
AVG2
R/W
0
Averaging mode.
These bits determine the number of samples that are collected
and averaged. Table 24 lists AVG bit settings and related number
of averages for each bit setting.
10
AVG1
R/W
0
9
AVG0
R/W
0
8
VBUSCT2
R/W
1
Bus voltage conversion time.
These bits set the conversion time for the bus voltage
measurement. Table 25 lists the VBUSCT bit options and related
conversion times for each bit setting.
7
VBUSCT1
R/W
0
6
VBUSCT0
R/W
0
5
VSHCT2
R/W
1
Shunt voltage conversion time.
These bits set the conversion time for the shunt voltage
measurement. Table 26 lists the VSHCT bit options and related
conversion times for each bit setting.
4
VSHCT1
R/W
0
3
VSHCT0
R/W
0
2:0
MODE[3:1]
R/W
1
Operating mode.
These bits select the continuous, triggered, or power-down mode
of operation. These bits default to continuous shunt and bus
measurement mode. Table 27 lists the mode settings.
Table 24. AGV[2:0] Bit Setting Combinations
AVG2
AVG1
AVG0
NUMBER OF
AVERAGES
0 (default)
0 (default)
0 (default)
1 (default)
0
0
1
4
0
1
0
16
0
1
1
64
1
0
0
128
1
0
1
256
1
1
0
512
1
1
1
1024



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