參數(shù)資料
型號: LTC3880EUJ-1#PBF
廠商: LINEAR TECHNOLOGY CORP
元件分類: 穩(wěn)壓器
英文描述: 0.1 A DUAL SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PQCC40
封裝: 6 X 6 MM, LEAD FREE, PLASTIC, WJJD-2, QFN-40
文件頁數(shù): 74/112頁
文件大?。?/td> 2182K
代理商: LTC3880EUJ-1#PBF
LTC3880/LTC3880-1
64
3880fa
GENERAL CONFIGURATION REGISTERS
COMMAND NAME
CMD CODE DESCRIPTION
TYPE
PAGED
DATA
FORMAT UNITS
NVM
DEFAULT
VALUE
MFR_CHAN_CONFIG_LTC3880
0xD0
Configuration bits that are channel specific. R/W Byte
Y
Reg
Y
0x1F
MFR_CONFIG_ALL_LTC3880
0xD1
Configuration bits that are common to all
pages.
R/W Byte
N
Reg
Y
0x09
MFR_CHAN_CONFIG_LTC3880
General purpose configuration command common to multiple LTC products.
BIT
MEANING
7
Reserved
6
Reserved
5
Reserved
4
Disable RUN Low. When asserted the RUN pin is not pulled low if commanded OFF
3
Short Cycle. When asserted the output will immediate off if commanded ON while waiting for TOFF_DELAY or TOFF_FALL. TOFF_MIN of 120mS
is honored then the part will command ON.
2
SHARE_CLOCK control, if SHARE_CLOCK is held low, the output is disabled
1
No GPIO ALERT, ALERT is not pulled low if GPIO is pulled low externally. Assert this bit if either POWER_GOOD or VOUT_UVUF are propagated
on GPIO
0
Disables the VOUT decay value requirement for MFR_RETRY_TIME processing. When this bit is set to a 0, the output must decay to less than
12.5% of the programmed value for any action that turns off the rail including a fault, an OFF/ON command, or a toggle of RUN from high to low
to high.
This command has one data byte.
MFR_CONFIG_ALL_LTC3880
General purpose configuration command common to multiple LTC products
BIT MEANING
7
Enable Fault Logging
6
Ignore Resistor Configuration Pins
5
Reserved, set to 1
4
Reserved
3
Mask PLL Unlock Fault
2
A valid PEC required for PMBus writes to be accepted. If this bit is not
set, the part will accept commands with invalid PEC.
1
Enable the use of PMBus clock stretching
0
Enables a low to high transition on either RUN pin to issue a
CLEAR_FAULTS command
This command has one data byte.
PMBus COMMAND DETAILS
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