Linear Technology LTC2977 Demo Board: Octal Power Supply Manager [Requires DC1613] DC2028A DC2028A Data Sheet
Product codes
DC2028A
LTC2977
59
2977fa
pMbus coMManD DescripTion
MFR_SPECIAL_ID
This register contains the manufacturer ID for the LTC2977.
This register contains the manufacturer ID for the LTC2977.
MFR_SPECIAL_ID Data Contents
BIT(S)
SYMBOL
OPERATION
b[15:0] Mfr_special_id
Read only, always returns 0x0130
MFR_SPECIAL_LOT
These paged registers contain information that identifies the user configuration that was programmed at the factory.
These paged registers contain information that identifies the user configuration that was programmed at the factory.
Contact the factory to request a custom factory programmed user configuration and special lot number.
MFR_SPECIAL_LOT Data Contents
BIT(S)
SYMBOL
OPERATION
b[7:0]
Mfr_special_lot
Contains the LTC default special lot number. Contact the factory to request a custom factory programmed user configu-
ration and special lot number.
MFR_VOUT_DISCHARGE_THRESHOLD
This register contains the coefficient that multiplies VOUT_COMMAND in order to determine the OFF threshold
This register contains the coefficient that multiplies VOUT_COMMAND in order to determine the OFF threshold
voltage for the associated output. If the output voltage has not decayed below MFR_VOUT_DISCHARGE_
THRESHOLD • VOUT_COMMAND prior to the channel being commanded to enter/re-enter the ON state, the Status_
mfr_discharge bit in the STATUS_MFR_SPECIFIC register will be set and the ALERTB pin will be asserted low. In
addition, the channel will not enter the ON state until the output has decayed below its OFF threshold voltage. Setting
this to a value greater than 1.0 effectively disables DISCHARGE_THRESHOLD checking, allowing the channel to turn
back on even if it has not decayed at all.
Other channels can be held off if a particular output has failed to discharge by using the bidirectional FAULTBzn pins
Other channels can be held off if a particular output has failed to discharge by using the bidirectional FAULTBzn pins
(refer to the MFR_FAULTBzn_RESPONSE and MFR_FAULTBzn_PROPAGATE registers).
MFR_VOUT_DISCHARGE_THRESHOLD Data Contents
BIT(S)
SYMBOL
OPERATION
b[15:0] Mfr_vout_discharge_
threshold
The data uses the L11 format.
Units: Dimensionless, this register contains a coefficient.
Units: Dimensionless, this register contains a coefficient.