LTM4686BEVPBF datasheet(123/130 Pages) AD

123 / 130 page

LTM4686B

123

Rev. 0

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APPENDIX C: PMBUS COMMAND DETAILS

Table 30. Fault Logging

This table outlines the format of the block data from a read block data of the MFR_FAULT_LOG command.

CYCLICAL DATA

EVENT n

(Data at Which Fault Occurred; Most Recent Data)

Event “n” represents one complete cycle of ADC reads through the MUX

at time of fault. Example: If the fault occurs when the ADC is processing

step 15, it will continue to take readings through step 25 and then store

the header and all 6 event pages to EEPROM

READ_VOUT (PAGE 0)

[15:8]

LIN 16

[7:0]

LIN 16

READ_VOUT (PAGE 1)

[15:8]

LIN 16

[7:0]

LIN 16

READ_IOUT (PAGE 0)

[15:8]

LIN 11

[7:0]

LIN 11

READ_IOUT (PAGE 1)

[15:8]

LIN 11

[7:0]

LIN 11

READ_VIN

[15:8]

LIN 11

[7:0]

LIN 11

READ_IIN

[15:8]

LIN 11

[7:0]

LIN 11

STATUS_VOUT (PAGE 0)

BYTE

STATUS_VOUT (PAGE 1)

BYTE

STATUS_WORD (PAGE 0)

[15:8]

WORD

[7:0]

WORD

STATUS_WORD (PAGE 1)

[15:8]

WORD

[7:0]

WORD

STATUS_MFR_SPECIFIC (PAGE 0)

BYTE

STATUS_MFR_SPECIFIC (PAGE 1)

BYTE

EVENT n–1

(data measured before fault was detected)

READ_VOUT (PAGE 0)

[15:8]

LIN 16

[7:0]

LIN 16

READ_VOUT (PAGE 1)

[15:8]

LIN 16

[7:0]

LIN 16

READ_IOUT (PAGE 0)

[15:8]

LIN 11

[7:0]

LIN 11

READ_IOUT (PAGE 1)

[15:8]

LIN 11

[7:0]

LIN 11

READ_VIN

[15:8]

LIN 11

[7:0]

LIN 11

READ_IIN

[15:8]

LIN 11

[7:0]

LIN 11

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