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LTM4686BEVPBF 数据表(PDF) 109 Page - Analog Devices |
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LTM4686BEVPBF 数据表(HTML) 109 Page - Analog Devices |
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109 / 130 page  LTM4686B 109 Rev. 0 For more information www.analog.com APPENDIX C: PMBUS COMMAND DETAILS MFR_MODEL The MFR_MODEL command indicates the manufacturer’s part number of the LTM4686B using ASCII characters. The MFR_MODEL value is “LTM4686 ”. The value consists of 8 ASCII characters and the last character is a blank space punctuation character (“ ”), i.e., ASCII code 0x20 or 32d. This read-only command is in block format. MFR_SERIAL The MFR_SERIAL command contains up to 9 bytes of custom formatted data used to uniquely identify the LTM4686B configuration. This read-only command is in block format. MFR_SPECIAL_ID The 16-bit word representing the part name. The 0x477 prefix denotes the part is an LTM4686B genre, whereas the X suffix is adjustable by the manufacturer. This read-only command has 2 data bytes. FAULT WARNING AND STATUS COMMAND NAME CMD CODE DESCRIPTION TYPE PAGED FORMAT UNITS NVM DEFAULT VALUE CLEAR_FAULTS 0x03 Clear any fault bits that have been set. Send Byte N NA SMBALERT_MASK 0x1B Mask ALERT Activity. Block R/W Y Reg Y See CMD Details MFR_CLEAR_PEAKS 0xE3 Clears all peaks values. Send Byte N NA STATUS_BYTE 0x78 One byte summary of the unit’s fault condition. R/W Byte Y Reg NA STATUS_WORD 0x79 Two byte summary of the unit’s fault condition. R/W Word Y Reg NA STATUS_VOUT 0x7A Output voltage fault and warning status. R/W Byte Y Reg NA STATUS_IOUT 0x7B Output current fault and warning status. R/W Byte Y Reg NA STATUS_INPUT 0x7C Input supply (SVIN) fault and warning status. R/W Byte N Reg NA STATUS_ TEMPERATURE 0x7D TSNSna– sensed fault and warning status for READ_TEMERATURE_1. R/W Byte Y Reg NA STATUS_CML 0x7E Communication and memory fault and warning status. R/W Byte N Reg NA STATUS_MFR_ SPECIFIC 0x80 Manufacturer specific fault and state information. R/W Byte Y Reg NA MFR_PADS 0xE5 Digital status of the I/O pads. R Word N Reg NA MFR_COMMON 0xEF Manufacturer status bits that are common across multiple ADI ICs/modules. R Byte N Reg NA MFR_INFO 0xB6 Manufacturing Specific Information R Word N Reg NA CLEAR_FAULTS The CLEAR_FAULTS command is used to clear any fault bits that have been set. This command clears all bits in all status commands simultaneously. At the same time, the device negates (clears, releases) its ALERT pin signal output if the device is asserting the ALERT pin signal. If the fault is still present when the bit is cleared, the fault bit will remain |
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