Linear Technology Analog Devices LTC3882-1, Техническое описание

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LTC3882-1
39
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
VOUT_UV_WARN_LIMIT 0x43 V
OUT
undervoltage warning limit. R/W Word Y L16 V
l
0.925V
0x0ECD
81
VOUT_UV_FAULT_LIMIT 0x44 V
OUT
undervoltage fault limit. R/W Word Y L16 V
l
0.9V
0x0E66
81
VOUT_UV_FAULT_RESPONSE 0x45 V
OUT
undervoltage fault response. R/W Byte Y Reg
l
0xB8 95
IOUT_OC_FAULT_LIMIT 0x46 Output overcurrent fault limit. R/W Word Y L11 A
l
29.75A
0xDBB8
82
IOUT_OC_FAULT_RESPONSE 0x47 Output overcurrent fault response. R/W Byte Y Reg
l
0x00 96
IOUT_OC_WARN_LIMIT 0x4A Output overcurrent warning limit. R/W Word Y L11 A
l
20.0A
0xDA80
82
OT_FAULT_LIMIT 0x4F External overtemperature fault limit. R/W Word Y L11 °C
l
100.0°C
0xEB20
85
OT_FAULT_RESPONSE 0x50 External overtemperature fault response. R/W Byte Y Reg
l
0xB8 97
OT_WARN_LIMIT 0x51 External overtemperature warning limit. R/W Word Y L11 °C
l
85.0°C
0xEAA8
85
UT_FAULT_LIMIT 0x53 External undertemperature fault limit. R/W Word Y L11 °C
l
–40.0°C
0xE580
86
UT_FAULT_RESPONSE 0x54 External undertemperature fault
response.
R/W Byte Y Reg
l
0xB8 97
VIN_OV_FAULT_LIMIT 0x55 V
IN
overvoltage fault limit. R/W Word N L11 V
l
15.5V
0xD3E0
78
VIN_OV_FAULT_RESPONSE 0x56 V
IN
overvoltage fault response. R/W Byte Y Reg
l
0x80 94
VIN_UV_WARN_LIMIT 0x58 V
IN
undervoltage warning limit. R/W Word N L11 V
l
6.3V
0xCB26
78
TON_DELAY 0x60 Delay from RUN pin or OPERATION ON
command to TON_RISE ramp start.
R/W Word Y L11 ms
l
0.0ms
0x8000
83
TON_RISE 0x61 Time for V
OUT
to rise from 0.0V to
VOUT_COMMAND after TON_DELAY.
R/W Word Y L11 ms
l
8.0ms
0xD200
83
TON_MAX_FAULT_LIMIT 0x62 Maximum time for V
OUT
to rise above
VOUT_UV_FAULT_LIMIT after
TON_DELAY.
R/W Word Y L11 ms
l
10.0ms
0xD280
84
TON_MAX_FAULT_RESPONSE 0x63 Fault response when TON_MAX_FAULT_
LIMIT is exceeded.
R/W Byte Y Reg
l
0xB8 98
TOFF_DELAY 0x64 Delay from RUN pin or OPERATION OFF
command to TOFF_FALL ramp start.
R/W Word Y L11 ms
l
0.0ms
0x8000
84
TOFF_FALL 0x65 Time for V
OUT
to fall to 0.0V from
VOUT_COMMAND after TOFF_DELAY.
R/W Word Y L11 ms
l
8.0ms
0xD200
84
TOFF_MAX_WARN_ LIMIT 0x66 Maximum time for V
OUT
to decay below
12.5% of VOUT_COMMAND after
TOFF_FALL completes.
R/W Word Y L11 ms
l
150ms
0xF258
84
STATUS_BYTE 0x78 One-byte channel status summary. R/W Byte Y Reg 86
STATUS_WORD 0x79 Two-byte channel status summary. R/W Word Y Reg 87
STATUS_VOUT 0x7A V
OUT
fault and warning status. R/W Byte Y Reg 88
STATUS_IOUT 0x7B I
OUT
fault and warning status. R/W Byte Y Reg 87
STATUS_INPUT 0x7C Input supply fault and warning status. R/W Byte N Reg 88