LTC3882_15 Datasheet, PDF (99/104 Pages) Linear Technology – Dual Output PolyPhase Step-Down DC/DC Voltage Mode Controller with Digital Power System Management

LTC3882
PMBus COMMAND DETAILS (EEPROM User Access)
STORE_USER_ALL
The STORE_USER_ALL command instructs the PMBus device to copy the entire contents of the operating memory to
internal EEPROM PMBus configuration space.
This write-only command has no data bytes.
RESTORE_USER_ALL
The RESTORE_USER_ALL command instructs the PMBus device to copy the entire contents of the internal EEPROM
to matching locations in operating memory. The values in operating memory are overwritten by the values retrieved
from EEPROM. Both channels should be turned off prior to issuing this command. The LTC3882 ensures both PWM
channels are off, loads the operating memory from internal EEPROM, clears all faults, reads the resistor configuration
pins, and then performs a soft-start of both PWM channels, if enabled
This write-only command has no data bytes.
MFR_COMPARE_USER_ALL
The MFR_COMPARE_USER_ALL command instructs the LTC3882 to compare current operating memory (PMBus
command values in RAM) with the contents of the internal EEPROM. If the compared memories differ, a CML fault is
generated.
This write-only command has no data bytes.
MFR_FAULT_LOG_STORE
The MFR_FAULT_LOG_STORE command forces a data log to be written to internal EEPROM as if a fault event had oc-
curred. This command will generate a CML fault if the Enable Fault Logging bit is cleared in MFR_CONFIG_ALL_LTC3882.
This write-only command has no data bytes.
MFR_EE_xxxx
The MFR_EE_xxxx commands facilitate bulk programming of the LTC3882 internal EEPROM. Contact the factory for
details.
USER_DATA_0x
The USER_DATA_0x commands provide uncommitted EEPROM locations that may be applied as system scratchpad
space. USER_DATA_00 and USER_DATA_01 should not be modified when using the LTpowerPlay GUI. Some contract
manufacturers also reserve use of USER_DATA_02 for their own inventory control.
For more information www.linear.com/LTC3882
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