参数资料
型号: LTC3880EUJ#PBF
厂商: Linear Technology
文件页数: 88/112页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM CM 40-QFN
软件下载: LTpowerPlay™
标准包装: 61
系列: PolyPhase®
PWM 型: 电流模式
输出数: 2
频率 - 最大: 1MHz
电源电压: 4.5 V ~ 24 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 105°C
封装/外壳: 40-WFQFN 裸露焊盘
包装: 管件
LTC3880/LTC3880-1
PMBus COMMAND DETAILS
Fault Sharing Response
COMMAND NAME
CMD CODE DESCRIPTION
TYPE
PAGED
DATA
FORMAT
UNITS
NVM
DEFAULT
VALUE
MFR_GPIO_RESPONSE
0xD5 Action to be taken by the device when the GPIO pin R/W Byte
is asserted low.
Y
Reg
Y
0xC0
MFR_GPIO_RESPONSE
This command determines the controller’s response to the GPIO n pin being pulled low by an external source.
VALUE
0xC0
0x00
MEANING
GPIO_INHIBIT The LTC3880 will three-state the output in response to the GPIO pin pulled low.
GPIO_IGNORE The LTC3880 continues operation without interruption.
The device also:
? Sets the NONE_OF_THE_ABOVE bit in the STATUS_BYTE
? Sets the MFR bit in the STATUS_WORD
? Sets the GPIOB bit in the STATUS_MFR_SPECIFIC command, and
? Notifies the host by asserting ALERT pin. The ALERT pin pulled low can be disabled by setting bit[1] of MFR_CHAN_
CFG_LTC3880.
This command has one data byte.
SCRATCHPAD
COMMAND NAME
CMD CODE
DESCRIPTION
TYPE
PAGED
DATA
FORMAT UNITS NVM
DEFAULT
VALUE
USER_DATA_00
USER_DATA_01
USER_DATA_02
USER_DATA_03
USER_DATA_04
0xB0
0xB1
0xB2
0xB3
0xB4
OEM reserved. Typically used for part serialization.
Manufacturer reserved for LTpowerPlay.
OEM reserved. Typically used for part serialization.
A NVM word available for the user.
A NVM word available for the user.
R/W Word
R/W Word
R/W Word
R/W Word
R/W Word
N
Y
N
Y
N
Reg
Reg
Reg
Reg
Reg
Y NA
Y NA
Y NA
Y 0x0000
Y 0x0000
USER_DATA_00 through USER_DATA_04
These commands are non-volatile memory locations for customer storage. The customer has the option to write any
value to the USER_DATA_nn at any time. However, the LTpowerPlay software and contract manufacturers use some of
these commands for inventory control. Modifying the reserved USER_DATA_nn commands may lead to undesirable
inventory control and incompatibility with these products.
These commands have 2 data bytes and are in register format.
3880fb
88
For more information www.linear.com/LTC3880
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