Texas Instruments Evaluation Board for the LM25066I LM25066I-EVM/NOPB LM25066I-EVM/NOPB 数据表
产品代码
LM25066I-EVM/NOPB
SNVS824C – JUNE 2012 – REVISED MARCH 2013
MFR_MODEL (9Ah)
The MFR_MODEL command is a standard PMBus
™
command that returns the part number of the chip. To read
the MFR_MODEL, use the PMBus
™
block read protocol.
Table 23. MFR_MODEL Register
Byte
Name
Value
0
Number of bytes
08h
1
MFR ID-1
4Ch ‘L’
2
MFR ID-2
4Dh ‘M’
3
MFR ID-3
32h ‘2’
4
MFR ID-4
35h ‘5’
5
MFR ID-5
30h ‘0’
6
MFR ID-6
36h ‘6’
7
MFR ID-7
36h ‘6’
8
MFR ID-8
49h ‘I’
MFR_REVISION (9Bh)
The MFR_REVISION command is a standard PMBus™ command that returns the revision level of the part. To
read the MFR_REVISION, use the PMBus™ block read protocol.
read the MFR_REVISION, use the PMBus™ block read protocol.
Table 24. MFR_REVISION Register
Byte
Name
Value
0
Number of bytes
02h
1
MFR ID-1
41h ‘A’
2
MFR ID-2
41h ‘A’
Manufacturer Specific PMBus™ Commands
MFR_SPECIFIC_00: READ_VAUX (D0h)
The READ_VAUX command will report the 12-bit ADC measured auxiliary voltage. Voltages greater than or
equal to 1.16V to ground will be reported at plus full scale (0FFFh). Voltages less than or equal to 0V referenced
to ground will be reported as 0 (0000h). Coefficients for the VAUX value are dependent on the value of the
external divider (if used). To read data from the READ_VAUX command, use the PMBus™ Read Word protocol.
equal to 1.16V to ground will be reported at plus full scale (0FFFh). Voltages less than or equal to 0V referenced
to ground will be reported as 0 (0000h). Coefficients for the VAUX value are dependent on the value of the
external divider (if used). To read data from the READ_VAUX command, use the PMBus™ Read Word protocol.
Table 25. READ_VAUX Register
Value
Meaning
Default
0h – 0FFFh
Measured value for VAUX input
0000h
MFR_SPECIFIC_01: MFR_READ_IIN (D1h)
The MFR_READ_IIN command will report the 12-bit ADC measured current sense voltage. To read data from
the MFR_READ_IIN command, use the PMBus™ Read Word protocol. Reading this register should use the
coefficients shown in
the MFR_READ_IIN command, use the PMBus™ Read Word protocol. Reading this register should use the
coefficients shown in
. Please see the section on coefficient calculations to calculate the values to use.
Table 26. MFR_READ_IIN Register
Value
Meaning
Default
0h – 0FFFh
Measured value for input current sense voltage
0000h
40
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