Linear Technology Analog Devices LTC3882-1, Техническое описание

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LTC3882-1
41
Rev A
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PMBus COMMAND SUMMARY
Table 7. PMBus Command Summary
COMMAND NAME
CMD
CODE DESCRIPTION TYPE PAGED
DATA
FORMAT UNITS NVM
DEFAULT
VALUE
SEE
PAGE
MFR_FAULT_RESPONSE 0xD5 PWM response when FAULT n pin is low. R/W Byte Y Reg
l
0xC0 100
MFR_OT_FAULT_RESPONSE 0xD6 Internal overtemperature fault response. R Byte N Reg 0xC0 97
MFR_IOUT_PEAK 0xD7 Maximum I
OUT
measurement since last
MFR_CLEAR_PEAKS.
R Word Y L11 A 92
MFR_RETRY_DELAY 0xDB Minimum time before retry after a fault. R/W Word Y L11 ms
l
350ms
0xFABC
98
MFR_RESTART_DELAY 0xDC Minimum time RUN pin is held low by
the LTC3882-1.
R/W Word Y L11 ms
l
500ms
0xFBE8
83
MFR_VOUT_PEAK 0xDD Maximum V
OUT
measurement since last
MFR_CLEAR_PEAKS.
R Word Y L16 V 91
MFR_VIN_PEAK 0xDE Maximum V
IN
measurement since last
MFR_CLEAR_PEAKS.
R Word N L11 V 91
MFR_TEMPERATURE_1_PEAK 0xDF Maximum external temperature
measurement since last MFR_CLEAR_
PEAKS.
R Word Y L11 °C 92
MFR_CLEAR_PEAKS 0xE3 Clear all peak values. Send Byte N 93
MFR_PADS_LTC3882-1 0xE5 State of selected LTC3882-1 pads. R Word N Reg 89
MFR_ADDRESS 0xE6 Specify right-justified 7-bit device
address.
R/W Byte N Reg
l
0x4F 71
MFR_SPECIAl_ID 0xE7 Manufacturer code representing the
LTC3882-1
R Word N Reg 0x424X 103
MFR_FAULT_LOG_STORE 0xEA Force transfer of fault log from operating
memory to EEPROM.
Send Byte N 103
MFR_FAULT_LOG_CLEAR 0xEC Clear existing EEPROM fault log. Send Byte N 101
MFR_FAULT_LOG 0xEE Read fault log data. R Block N Reg 101
MFR_COMMON 0xEF LTC-generic device status reporting. R Byte N Reg 90
MFR_COMPARE_USER_ALL 0xF0 Compare operating memory with
EEPROM contents.
Send Byte N 102
MFR_TEMPERATURE_2_PEAK 0xF4 Maximum internal temperature
measurement since last
MFR_CLEAR_PEAKS.
R Word N L11 °C 93
MFR_PWM_CONFIG_LTC3882-1 0xF5 LTC3882-1 PWM configuration common
to both channels.
R/W Byte N Reg
l
0x14 75
MFR_IOUT_CAL_GAIN_TC 0xF6 Output current sense element
temperature coefficient.
R/W Word Y CF ppm/°C
l
3900ppm/°C
0x0F3C
82
MFR_TEMP_1_GAIN 0xF8 Slope for external temperature
calculations.
R/W Word Y CF
l
1.0
0x4000
85
MFR_TEMP_1_OFFSET 0xF9 Offset addend for external temperature
calculations.
R/W Word Y L11 °C or V
l
0.0
0x8000
85
MFR_RAIL_ADDRESS 0xFA Specify unique right-justified 7-bit
address for channels comprising a
PolyPhase output.
R/W Byte Y Reg
l
0x80 71
MFR_RESET 0xFD Force full reset without removing power. Send Byte N 73
NVM
l
Indicates a command value stored to internal EEPROM using STORE_USER_ALL or restored to RAM from internal EEPROM at power-up or
execution of RESTORE_USER_ALL or MFR_RESET.