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LTM4676A 数据表(PDF) 90 Page - Linear Technology

部件名 LTM4676A
功能描述  Dual 13A or Single 26A 關Module Regulator with Digital Power System Management
Download  136 Pages
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制造商  LINER [Linear Technology]
网页  http://www.linear.com
标志 LINER - Linear Technology

LTM4676A 数据表(HTML) 90 Page - Linear Technology

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LTM4676A
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4676afa
For more information www.linear.com/LTM4676A
appenDix c: pMbus coMManD DeTails
OPERATION
The OPERATION command is used to turn the unit on and off in conjunction with the input from the RUNn pins. It is
also used to cause the unit to set the output voltage to the upper or lower MARGIN VOLTAGEs. The unit stays in the
commanded operating mode until a subsequent OPERATION command or change in the state of the RUNn pin instructs
the device to change to another mode. If the part is stored in the MARGIN_LOW/HIGH state, the next MFR_RESET
or RESTORE_USER_ALL or SVIN power cycle will ramp to that state. If the OPERATION command is modified, for
example ON is changed to MARGIN_LOW, the output will move at a fixed slope set by the VOUT_TRANSITION_RATE.
The default operation command is sequence off.
Margin High (Ignore Faults) and Margin Low (Ignore Faults) operations are not supported by the LTM4676A.
The part defaults to the Sequence Off state.
This command has one data byte.
Table 23. OPERATION Command Detail Register OPERATION Data Contents
When On_Off_Config_Use_PMBus Enables Operation_Control
SYMBOL
Action
Value
BITS
FUNCTION
Turn off immediately
0x00
Turn on
0x80
Margin Low
0x98
Margin High
0xA8
Sequence off
0x40
OPERATION Data Contents When On_Off_Config is Configured Such That
OPERATION Command Is Not Used to Command Channel On or Off
SYMBOL
Action
Value
BITS
FUNCTION
Output at Nominal
0x80
Margin Low
0x98
Margin High
0xA8
Note: Attempts to write a reserved value will cause a CML fault.
MFR_RESET
ThiscommandprovidesameansbywhichtheusercanperformaresetoftheLTM4676A.IdenticaltoRESTORE_USER_ALL.
This write-only command has no data bytes.


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