LTC3882_15 Datasheet, PDF (85/104 Pages) Linear Technology – Dual Output PolyPhase Step-Down DC/DC Voltage Mode Controller with Digital Power System Management

LTC3882
PMBus COMMAND DETAILS (Status Reporting)
STATUS_IOUT
The STATUS_IOUT command returns one byte of I_OUT status information.
STATUS_IOUT Message Contents:
BIT MEANING
7
I_OUT overcurrent fault.
6
Not supported (LTC3882 returns 0).
5
I_OUT overcurrent warning.
4:0 Not supported (LTC3882 returns 0).
ALERT can be asserted if any supported bits are set. Any supported bit may be cleared by writing a 1 to that bit position in STATUS_IOUT, in lieu of a
CLEAR_FAULTS command.
This command has one data byte.
STATUS_INPUT
The STATUS_INPUT command returns one byte of V_IN (VINSNS) status information.
STATUS_INPUT Message Contents:
BIT MEANING
7
V_IN overvoltage fault.
6
Not supported (LTC3882 returns 0).
5
V_IN undervoltage warning.
4
Not supported (LTC3882 returns 0).
3
Unit off for insufficient V_IN.
2:0 Not supported (LTC3882 returns 0).
ALERT can be asserted if bit 7 is set. Bit 7 may be cleared by writing it to a 1, in lieu of a CLEAR_FAULTS command.
This command has one data byte.
STATUS_TEMPERATURE
The STATUS_TEMPERATURE command returns one byte of sensed external temperature status information.
STATUS_TEMPERATURE Message Contents:
BIT MEANING
7
External overtemperature fault.
6
External overtemperature warning.
5
Not supported (LTC3882 returns 0).
4
External undertemperature fault.
3:0 Not supported (LTC3882 returns 0).
ALERT can be asserted if any supported bits are set. Any supported bit may be cleared by writing a 1 to that bit position in STATUS_TEMPERATURE, in lieu
of a CLEAR_FAULTS command.
This command has one data byte.
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