Identification - Analog Devices Linear ADI Power LTM4681 Manual

PMBus COMMAND DETAILS
USER_DATA_00 through USER_DATA_04
These commands are non-volatile memory locations for customer storage. The customer has the option to write any
value to the USER_DATA_nn at any time. However, the LTpowerPlay software and contract manufacturers use some of
these commands for inventory control. Modifying the reserved USER_DATA_nn commands may lead to undesirable
inventory control and incompatibility with these products.
These commands have 2 data bytes and are in register format.

IDENTIFICATION

COMMAND NAME CMD CODE DESCRIPTION
PMBus_REVISION 0x98
CAPABILITY 0x19
MFR_ID 0x99
MFR_MODEL 0x9A
MFR_SPECIAL_ID 0xE7
PMBus_REVISION
The PMBUS_REVISION command indicates the revision of the PMBus to which the device is compliant. The LTM4681
is PMBus Version 1.2 compliant in both Part I and Part II.
This read-only command has one data byte.
CAPABILITY
This command provides a way for a host system to determine some key capabilities of a PMBus device.
The LTM4681 supports packet error checking, 400kHz bus speeds, and ALERT pin.
This read-only command has one data byte.
MFR_ID
The MFR_ID command indicates the manufacturer ID of the LTM4681 using ASCII characters.
This read-only command is in block format.
MFR_MODEL
The MFR_MODEL command indicates the manufacturer's part number of the LTM4681 using ASCII characters.
This read-only command is in block format.
MFR_SPECIAL_ID
The 16-bit word representing the part name and revision. 0x414 denotes the part is an LTM4681, X is adjustable by
the manufacturer.
This read-only command has two data bytes.
PMBus revision supported by this device.
Current revision is 1.2.
Summary of PMBus optional communication
protocols supported by this device.
The manufacturer ID of the LTM4681 in ASCII.
Manufacturer part number in ASCII.
Manufacturer code representing the LTM4681.
For more information
TYPE PAGED FORMAT
R Byte N
R Byte N
R String N
R String N
R Word N
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LTM4681
DATA DEFAULT
UNITS NVM VALUE
Reg FS
Reg
ASC
ASC LTM4681
Reg 0x500X
113
0x22
0xB0
LTC
Rev. A