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LTM4677 데이터시트(PDF) 84 Page - Analog Devices

부품명 LTM4677
상세설명  Dual Loop 8-Phase Step-Down DC/DC Controller with Digital Power System Management
PDF  110 Pages
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LTC3888-1
84
Rev. 0
For more information www.analog.com
PMBus COMMAND DETAILS (Output Voltage and Limits)
VOUT_UV_WARN_LIMIT
The VOUT_UV_WARN_LIMIT command sets the value, in volts, of the VSENSE± differnetial voltage measured by the
ADC that causes an output undervoltage warning. If the VOUT_UV_WARN_LIMIT is exceeded, the device:
• Sets the VOUT Bit in the STATUS_WORD
• Sets the VOUT Undervoltage Warning Bit in the STATUS_VOUT Command
• Notifies the Host by Asserting ALERT, Unless Masked
This command has two data bytes in Linear_16u format.
VOUT_UV_FAULT_LIMIT
The VOUT_UV_FAULT_LIMIT command sets the value of VFB (or VOUT if VOUT_SCALE_LOOP has been defined), in
volts, that causes an output undervoltage fault. If VOUT_UV_FAULT_LIMIT is modified while the channel is on, 2ms
should be allowed for the new value to take effect. Modifying VOUT during that time can result in an erroneous UV fault.
The LTC3888-1 sets MFR_COMMON bits[6:5] low while a new VOUT_UV_FAULT_LIMIT is established. Execution of
this command is delayed if VOUT_SCALE_LOOP is being processed.
This command has two data bytes in Linear_16u format.



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