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LTM4686BIVPBF 数据表(PDF) 40 Page - Analog Devices |
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LTM4686BIVPBF 数据表(HTML) 40 Page - Analog Devices |
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40 / 130 page  LTM4686B 40 Rev. 0 For more information www.analog.com PMBus COMMAND SUMMARY Table 1. Summary of Supported Commands PMBus COMMAND NAME, OR FEATURE CMD CODE (REGISTER) COMMAND OR FEATURE DESCRIPTION LTM4686B NVM FACTORY-DEFAULT VALUE AND/OR ATTRIBUTES PAGE OT_FAULT_ RESPONSEn 0x50 Action to be taken by the device when an overtemperature fault is detected via TSNSna. 0x80 (immediate off; no retry), read/write, paged, stored in user-editable NVM. 104 OT_WARN_LIMITn 0x51 Overtemperature warning threshold. 0xEBE8 (125°C), read/write, paged, stored in user-editable NVM. 96 UT_FAULT_LIMITn 0x53 Undertemperature fault threshold. 0xE530 (–45°C), read/write, paged, stored in user-editable NVM. 96 UT_FAULT_ RESPONSEn 0x54 Response to undertemperature fault events. 0x80 (immediate off; no retry), read/write, paged, stored in user-editable NVM, read/write, paged, stored in user-editable NVM. 105 VIN_OV_FAULT_ LIMIT 0x55 Input supply (SVIN) overvoltage fault limit. 0xCB00 (6.000V), read/write, non-paged, stored in user-editable NVM. 89 VIN_OV_FAULT_ RESPONSEn 0x56 Response to input overvoltage fault events. 0x80 (immediate off; no retry), read/write, paged, stored in user-editable NVM. 99 VIN_UV_WARN_ LIMIT 0x58 Input undervoltage warning threshold. 0xCA0C (4.094V) Voltage as measured on the “SVIN” pin, read/write, non-paged, stored in user-editable NVM. 89 IIN_OC_WARN_ LIMIT 0x5D Input supply overcurrent warning threshold. 0xDBC0 (30A), read/write, non-paged, stored in user-editable NVM. 93 TON_DELAYn 0x60 Time from RUNn and/or OPERATIONn on to output rail turn-on. 0x0000 (0ms), read/write, paged, stored in user-editable NVM. 97 TON_RISEn 0x61 Time from when the output voltage reference starts to rise until it reaches its commanded setting. 0xC200 (2ms), read/write, paged, stored in user-editable NVM. 97 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). 0xD280 (10ms), read/write, paged, stored in user-editable NVM. 97 TON_MAX_FAULT_ RESPONSEn 0x63 Action to be taken by the device when a TON_MAX_FAULTn event is detected. 0xB8 (non-latching shutdown; autonomous restart upon fault removal), read/write, paged, stored in user-editable NVM. 102 TOFF_DELAYn 0x64 Time from RUN and/or Operation off to the start of TOFF_FALLn ramp. 0x0000 (0ms), read/write, paged, stored in user-editable NVM. 97 TOFF_FALLn 0x65 Time from when the output voltage reference starts to fall until it reaches 0V. 0xC280 (2.5ms), read/write, paged, stored in user-editable NVM. 98 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). 0xF320 (200ms), read/write, paged, stored in user-editable NVM. 98 STATUS_BYTEn 0x78 One byte summary of the unit’s fault condition. Default value not applicable, read/write, paged, not stored in NVM. 111 STATUS_WORDn 0x79 Two byte summary of the unit’s fault condition. Default value not applicable, read/write, paged, not stored in NVM. 111 STATUS_VOUTn 0x7A Output voltage fault and warning status. Default value not applicable, read/write, paged, not stored in NVM. 112 |
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