LTM4677 datasheet(84/110 Pages) AD

номер детали	LTM4677

подробное описание детали	Dual Loop 8-Phase Step-Down DC/DC Controller with Digital Power System Management

PDF	110 Pages

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84 / 110 page

LTC3888-1

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.

LTM4677 датащи(PDF) 84 Page - Analog Devices