LTM4683
PMBus COMMAND SUMMARY
Table 7. PMBus Commands Summary (NOTE: The Data Format Abbreviations are Detailed in Table 8)
CMD
COMMAND NAME
CODE DESCRIPTION
READ_FREQUENCY
0x95
READ_POUT
0x96
READ_PIN
0x97
PMBus_REVISION
0x98
MFR_ID
0x99
MFR_MODEL
0x9A Manufacturer part number is in ASCII.
MFR_VOUT_MAX
0xA5 Maximum allowed output voltage including
MFR_PIN_ACCURACY
0xAC Returns the accuracy of the READ_PIN
USER_DATA_00
0xB0 OEM RESERVED. Typically used for part
USER_DATA_01
0xB1 Manufacturer reserved for LTpowerPlay.
USER_DATA_02
0xB2 OEM RESERVED. Typically used for part
USER_DATA_03
0xB3 An NVM word available for the user.
USER_DATA_04
0xB4 An NVM word available for the user.
MFR_EE_UNLOCK
0xBD Contact factory.
MFR_EE_ERASE
0xBE Contact factory.
MFR_EE_DATA
0xBF
MFR_CHAN_CONFIG
0xD0 The configuration bits that are
MFR_CONFIG_ALL
0xD1 General configuration bits.
MFR_FAULT_PROPAGATE
0xD2 Configuration that determines which faults
MFR_PWM_COMP
0xD3 PWM loop compensation configuration.
MFR_PWM_MODE
0xD4 Configuration for the PWM engine.
MFR_FAULT_RESPONSE
0xD5 Action to be taken by the device when the
MFR_OT_FAULT_RESPONSE
0xD6 Action to be taken by the device when an
MFR_IOUT_PEAK
0xD7 Report the maximum measured
MFR_ADC_CONTROL
0xD8 ADC telemetry parameter selected for
MFR_RETRY_DELAY
0xDB Retry interval during FAULT retry mode.
MFR_RESTART_DELAY
0xDC The minimum time the RUN pin is held low
52
Measured PWM switching frequency.
Measured output power.
Calculated input power.
PMBus revision is supported by this
device. The current revision is 1.2.
The manufacturer ID of the LTM4683 in
ASCII.
VOUT_OV_FAULT_LIMIT.
command
serialization.
serialization
Contact factory.
channel-specific.
are propagated to the FAULT pin.
FAULT pin is externally asserted low.
internal overtemperature fault is detected.
value of READ_IOUT since the last
MFR_CLEAR_PEAKS.
repeated fast ADC read back
by the LTM4683.
For more information
DATA
TYPE
PAGED
FORMAT UNITS NVM
R Word
Y
L11
R Word
Y
L11
R Word
Y
L11
R Byte
N
Reg
R String
N
ASC
R String
N
ASC
R Word
Y
L16
R Byte
N
%
R/W Word
N
Reg
R/W Word
Y
Reg
R/W Word
N
Reg
R/W Word
Y
Reg
R/W Word
N
Reg
R/W Byte
Y
Reg
R/W Byte
N
Reg
R/W Word
Y
Reg
R/W Byte
Y
Reg
R/W Byte
Y
Reg
R/W Byte
Y
Reg
R Byte
N
Reg
R Word
Y
L11
R/W Byte
N
Reg
R/W Word
Y
L11
R/W Word
Y
L11
www.analog.com
DEFAULT
VALUE
PAGE
Hz
NA
119
W
N/A
119
W
N/A
120
0x22
111
LTC
111
111
V
2.75
95
0x2C00
5.0%
120
Y
NA
111
Y
NA
111
Y
NA
111
Y
0x0000
111
Y
0x0000
111
127
127
127
Y
0x1D
85
Y
0x21
86
Y
0x6993
108
Y
0x48
89
Y
0xC7
88
Y
0xC0
110
0xC0
106
A
NA
120
0x00
121
ms
Y
250.0
101
0xF3E8
ms
Y
150.0
101
0xF258
Rev. 0
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