LTC3882_15 Datasheet, PDF (88/104 Pages) Linear Technology – Dual Output PolyPhase Step-Down DC/DC Voltage Mode Controller with Digital Power System Management

LTC3882
PMBus COMMAND DETAILS (Status Reporting)
CLEAR_FAULTS
The CLEAR_FAULTS command clears any fault bits that have been set and deasserts (releases) the ALERT pin. This
command clears all bits in all status commands simultaneously.
CLEAR_FAULTS does not cause a channel that has latched off for a fault condition to restart. Channels that are latched
off for a fault condition are restarted when the output is commanded to turn off and then on through the OPERATION
command or RUN pins, or IC supply power is cycled.
If a fault is still present when CLEAR_FAULTS is commanded, that fault bit will immediately be set and ALERT again
asserted low.
This write-only command has no data bytes.
TELEMETRY
COMMAND NAME
CMD
CODE DESCRIPTION
DATA
TYPE PAGED FORMAT
READ_VIN
MFR_VIN_PEAK
0x88 Measured V_IN.
0xDE Maximum V_IN measurement since last
MFR_CLEAR_PEAKS.
R Word N
L11
R Word N
L11
READ_VOUT
MFR_VOUT_PEAK
0x8B Measured V_OUT.
0xDD Maximum V_OUT measurement since last
MFR_CLEAR_PEAKS.
R Word Y
L16
R Word Y
L16
READ_IOUT
MFR_IOUT_PEAK
0x8C Measured I_OUT.
0xD7 Maximum I_OUT measurement since last
MFR_CLEAR_PEAKS.
R Word Y
L11
R Word Y
L11
READ_POUT
0x96 Calculated output power.
R Word Y
L11
READ_TEMPERATURE_1
0x8D Measured external temperature.
R Word Y
L11
MFR_TEMPERATURE_1_PEAK
0xDF Maximum external temperature measurement R Word Y
L11
since last MFR_CLEAR_PEAKS.
READ_TEMPERATURE_2
0x8E Measured internal temperature.
R Word N
L11
MFR_TEMPERATURE_2_PEAK
0xF4 Maximum internal temperature measurement R Word N
L11
since last MFR_CLEAR_PEAKS.
READ_DUTY_CYCLE
0x94 Measured commanded PWM duty cycle.
R Word Y
L11
READ_FREQUENCY
0x95 Measured PWM input clock frequency.
R Word Y
L11
MFR_CLEAR_PEAKS
0xE3 Clear all peak values.
Send Byte N
Related commands: IOUT_CAL_GAIN, MFR_IOUT_CAL_GAIN_TC, MFR_PWM_MODE_LTC3882
UNITS NVM
V
V
V
V
A
A
W
°C
°C
°C
°C
%
kHz
DEFAULT
VALUE
READ_VIN
The READ_VIN command returns the input voltage measured between VINSNS and GND in volts.
This read-only command has two data bytes in Linear_5s_11s format.
3882f
88
For more information www.linear.com/LTC3882