Linear Technology Analog Devices LTC3882-1, Техническое описание

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LTC3882-1
40
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
STATUS_TEMPERATURE 0x7D External temperature fault and warning
status.
R/W Byte Y Reg 88
STATUS_CML 0x7E Communication, memory and logic fault
and warning status.
R/W Byte N Reg 88
STATUS_MFR_ SPECIFIC 0x80 LTC3882-1-specific status. R/W Byte Y Reg 89
READ_VIN 0x88 Measured V
IN
. R Word N L11 V 91
READ_VOUT 0x8B Measured V
OUT
. R Word Y L16 V 91
READ_IOUT 0x8C Measured I
OUT
. R Word Y L11 A 92
READ_TEMPERATURE_1 0x8D Measured external temperature. R Word Y L11 °C 92
READ_TEMPERATURE_2 0x8E Measured internal temperature. R Word N L11 °C 92
READ_DUTY_CYCLE 0x94 Measured commanded PWM duty cycle. R Word Y L11 % 93
READ_FREQUENCY 0x95 Measured PWM input clock frequency. R Word Y L11 kHz 93
READ_POUT 0x96 Calculated output power. R Word Y L11 W 92
PMBUS_REVISION 0x98 Supported PMBus version. R Byte N Reg 0x22
V1.2
71
MFR_ID 0x99 Manufacturer identification. R String N ASC LTC 103
MFR_MODEL 0x9A LTC model number. R String N ASC LTC3882-1 103
MFR_SERIAL 0x9E Device serial number. R Block N ASC 103
LTC3882-1 Custom Commands
MFR_VOUT_MAX 0xA5 Maximum value of any V
OUT
related
command.
R Word Y L16 V 5.6V
0x599A
79
USER_DATA_00 0xB0 EEPROM word reserved for LTpowerPlay. R/W Word N Reg
l
103
USER_DATA_01 0xB1 EEPROM word reserved for LTpowerPlay. R/W Word Y Reg
l
103
USER_DATA_02 0xB2 EEPROM word reserved for OEM use. R/W Word N Reg
l
103
USER_DATA_03 0xB3 EEPROM word available for general data
storage.
R/W Word Y Reg
l
0x0000 103
USER_DATA_04 0xB4 EEPROM word available for general data
storage.
R/W Word N Reg
l
0x0000 103
MFR_INFO 0xB6 Manufacturing Specific Information R Word N Reg NA 90
MFR_EE_UNLOCK 0xBD (contact the factory) 103
MFR_EE_ERASE 0xBE (contact the factory) 103
MFR_EE_DATA 0xBF (contact the factory) 103
MFR_CHAN_CONFIG_
LTC3882-1
0xD0 LTC3882-1 channel-specific
configuration.
R/W Byte Y Reg
l
0x1D 76
MFR_CONFIG_ALL_LTC3882-1 0xD1 LTC3882-1 device-level configuration. R/W Byte N Reg
l
0x01 72
MFR_FAULT_PROPAGATE_
LTC3882-1
0xD2 Configure LTC3882-1 status propagation
via FAULT n pins.
R/W Word Y Reg
l
0x6993 99
MFR_VOUT_AVP 0xD3 Specify V
OUT
load line. R/W Word Y L11 %
l
0%
0x8000
80
MFR_PWM_MODE_LTC3882-1 0xD4 LTC3882-1 channel-specific PWM mode
control.
R/W Byte Y Reg
l
0xC8 77