Analog Devices LTM4683 Manual page 119

LTM4683
PMBus COMMAND DETAILS
READ_VIN
The READ_VIN command returns the measured V pin voltage, in volts added to READ_ICHIP • MFR_RVIN. This
IN
compensates for the IR voltage drop across the V filter element due to the supply current of the LTM4683.
IN
This read-only command has two data bytes and is formatted in Linear_5s_11s format.
READ_VOUT
The READ_VOUT command returns the measured output voltage by the VOUT_MODE command.
This read-only command has two data bytes and is formatted in Linear_16u format.
READ_IIN
The READ_IIN command returns the input current, in Amperes, as measured across the input current sense resistor
(see also MFR_IIN_CAL_GAIN).
This read-only command has two data bytes and is formatted in Linear_5s_11s format.
READ_IOUT
The READ_IOUT command returns the average output current in amperes. The I value is a function of:
OUT
1. The differential voltage measured across the I pins.
SENSE
2. The IOUT_CAL_GAIN value.
3. The MFR_IOUT_CAL_GAIN_TC value.
4. READ_TEMPERATURE_1 value.
5. The MFR_TEMP_1_GAIN and the MFR_TEMP_1_OFFSET.
This read-only command has two data bytes and is formatted in Linear_5s_11s format.
READ_TEMPERATURE_1
The READ_TEMPERATURE_1 command returns the temperature, in degrees Celsius, of the power stage sense element.
This read-only command has two data bytes and is formatted in Linear_5s_11s format.
READ_TEMPERATURE_2
The READ_TEMPERATURE_2 command returns the LTM4683's die temperature, in degrees Celsius, of the internal
sense element.
This read-only command has two data bytes and is formatted in Linear_5s_11s format.
READ_FREQUENCY
The READ_FREQUENCY command is a reading of the PWM switching frequency in kHz.
This read-only command has 2-data bytes and is formatted in Linear_5s_11s format.
READ_POUT
The READ_POUT command is a reading of the DC/DC converter output power in Watts. P is calculated based on
OUT
the most recent correlated output voltage and current reading.
This read-only command has 2 data bytes and is formatted in Linear_5s_11s format.
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