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LTM4676A Folha de dados(PDF) 43 Page - Linear Technology |
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LTM4676A Folha de dados(HTML) 43 Page - Linear Technology |
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43 / 136 page  LTM4676A 43 4676afa For more information www.linear.com/LTM4676A pMbus coMManD suMMary Table 1. Summary of Supported Commands and Feature Differences Between the LTM4676A and the LTM4676 (Items of Greatest Significance Indicated by Gray-Shaded Cells; Common Commands, Values and Attributes Indicated by Non-Shaded, Merged Cells) PMBus COMMAND NAME, OR FEATURE CMD CODE (REGISTER) COMMAND OR FEATURE DESCRIPTION LTM4676A NVM FACTORY-DEFAULT VALUE AND/OR ATTRIBUTES LTM4676 NVM FACTORY-DEFAULT VALUE AND/OR ATTRIBUTES PAGE TON_MAX_FAULT_ LIMITn 0x62 Turn-on watchdog timeout fault threshold (time permitted for VOUTn to reach or exceed VOUT_ UV_FAULT_LIMITn after turn-on command is received). No difference: 0xCA80 (5ms), read/write, paged, stored in user-editable NVM. 101 TON_MAX_FAULT_ RESPONSEn 0x63 Action to be taken by the device when a TON_MAX_FAULTn event is detected. No difference: 0xB8 (non-latching shutdown; autonomous restart upon fault removal), read/write, paged, stored in user-editable NVM. 106 TOFF_DELAYn 0x64 Time from RUN and/or Operation off to the start of TOFF_FALLn ramp. No difference: 0x8000 (0ms), read/write, paged, stored in user-editable NVM. 102 TOFF_FALLn 0x65 Time from when the output voltage reference starts to fall until it reaches 0V. No difference: 0xC300 (3ms), read/write, paged, stored in user-editable NVM. 102 TOFF_MAX_WARN_ LIMITn 0x66 Turn-off watchdog timeout fault threshold (time permitted for VOUTn to decay to or below 12.5% of the commanded VOUTn value at the time of receiving a turn-off command). No difference: 0x8000 (no limit; warning is disabled), read/write, paged, stored in user-editable NVM. 102 STATUS_BYTEn 0x78 One byte summary of the unit’s fault condition. No difference: default value not applicable, read/write, paged, not stored in NVM. 116 STATUS_WORDn 0x79 Two byte summary of the unit’s fault condition. No difference: default value not applicable, read/write, paged, not stored in NVM. 116 STATUS_VOUTn 0x7A Output voltage fault and warning status. No difference: default value not applicable, read/write, paged, not stored in NVM. 117 STATUS_IOUTn 0x7B Output current fault and warning status. No difference: default value not applicable, read/write, paged, not stored in NVM. 117 STATUS_INPUT 0x7C Input supply (SVIN) fault and warning status. No difference: default value not applicable, read/write, non-paged, not stored in NVM. 117 STATUS_ TEMPERATUREn 0x7D TSNSna-sensed temperature fault and warning status for READ_ TEMERATURE_1n. No difference: default value not applicable, read/write, paged, not stored in NVM. 118 STATUS_CML 0x7E Communication and memory fault and warning status. No difference: default value not applicable, read/write, non-paged, not stored in NVM. 118 STATUS_MFR_ SPECIFICn 0x80 Manufacturer specific fault and state information. No difference: default value not applicable, read/write, paged, not stored in NVM. 118 READ_VIN 0x88 Measured input supply (SVIN) voltage. No difference: default value not applicable, read-only, non-paged, not stored in NVM. 122 READ_IIN 0x89 Calculated total input supply current. No difference: default value not applicable, read-only, non-paged, not stored in NVM. 122 READ_VOUTn 0x8B Measured output voltage. No difference: default value not applicable, read-only, paged, not stored in NVM. 122 READ_IOUTn 0x8C Measured output current. No difference: default value not applicable, read-only, paged, not stored in NVM. 122 READ_ TEMPERATURE_1n 0x8D Measurement of TSNSna-sensed temperature. No difference: default value not applicable, read-only, paged, not stored in NVM. 122 |
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