LTC3882_15 Datasheet, PDF (90/104 Pages) Linear Technology – Dual Output PolyPhase Step-Down DC/DC Voltage Mode Controller with Digital Power System Management

LTC3882
PMBus COMMAND DETAILS (Telemetry)
READ_TEMPERATURE_1
The READ_TEMPERATURE_1 command returns the temperature, in degrees Celsius, of the external sense element.
This read-only command has two data bytes in Linear_5s_11s format.
MFR_TEMPERATURE_1_PEAK
The MFR_TEMPERATURE_1_PEAK command reports the highest temperature, in degrees Celsius, calculated for
READ_TEMPERATURE_1. This peak value can be reset by a MFR_CLEAR_PEAKS command.
This read-only command has two data bytes in Linear_5s_11s format.
READ_TEMPERATURE_2
The READ_TEMPERATURE_2 command returns the LTC3882 internal temperature in degrees Celsius.
This read-only command has two data bytes in Linear_5s_11s format.
MFR_TEMPERATURE_2_PEAK
The MFR_TEMPERATURE_2_PEAK command reports the highest temperature, in degrees Celsius, calculated for
READ_TEMPERATURE_2. This peak value can be reset by a MFR_CLEAR_PEAKS command.
This read-only command has two data bytes in Linear_5s_11s format.
READ_DUTY_CYCLE
The READ_DUTY_CYCLE command returns the duty cycle of the PWM/TG control in percent. This will not be the
exact duty cycle of the PWM switch node due to efficiency losses in the power stage and current consumption of the
LTC3882 itself.
This read-only command has two data bytes in Linear_5s_11s format.
READ_FREQUENCY
The READ_FREQUENCY command returns the switching frequency supplied to the internal PLL in kilohertz, whether
derived internally or provided by external clock on the SYNC pin. This may not be the actual PWM output switching
frequency during certain exception processing, such as an output overcurrent condition.
This read-only command has two data bytes in Linear_5s_11s format.
MFR_CLEAR_PEAKS
The MFR_CLEAR_PEAKS command resets all stored _PEAK values. The LTC3882 determines new peak values after
this command is received.
This write-only command has no data bytes.
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For more information www.linear.com/LTC3882