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LTM4686BIVPBF 数据表(PDF) 42 Page - Analog Devices |
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LTM4686BIVPBF 数据表(HTML) 42 Page - Analog Devices |
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42 / 130 page  LTM4686B 42 Rev. 0 For more information www.analog.com 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 MFR_EE_UNLOCK 0xBD Unlock user EEPROM for access by MFR_EE_ERASE and MFR_EE_ DATA commands. Default value not applicable, read/write, non-paged, not stored in NVM. 126 MFR_EE_ERASE 0xBE Initialize user EEPROM for bulk programming by MFR_EE_DATA. Default value not applicable, read/write, non-paged, not stored in NVM. 126 MFR_EE_DATA 0xBF Data transferred to and from EEPROM using sequential PMBus word reads or writes. Supports bulk programming. Default value not applicable, read/write, non-paged, not stored in NVM. 126 MFR_CHAN_ CONFIG_*n 0xD0 Channel-specific configuration bits. 0x1D, read/write, paged, stored in user-editable NVM. Register is named “MFR_CHAN_CONFIG” and referred to as “MFR_CHAN_CONFIG_ LTM468X” in LTpowerPlay. 84 MFR_CONFIG_ALL_* 0xD1 Global configuration bits, i.e., common to both VOUT channels 0 and 1. 0x09, read/write, non-paged, stored in user-editable NVM. Bit 4 configures whether the SYNC drive circuit is active (0b) or inactive (1b); Bit 3 configures whether the Stuck PMBus Timer Timeout is 150ms for Block Reads and 32ms for Non-Block Reads (0b) or 250ms for all Reads (1b). Register is named "MFR_CONFIG_ALL_LTM468X” in LTpowerPlay. 85 MFR_GPIO_ PROPAGATE_*n 0xD2 Configuration bits for propagating faults to the GPIOn pins. 0x7993, read/write, paged, stored in user-editable NVM. Register is named “MFR_GPIO_PROPAGATE” and referred to as “MFR_GPIO_ PROPAGATE_LTM468X” in LTpowerPlay. 106 MFR_PWM_ MODE_*n 0xD4 Configuration for the PWM engine of each VOUT channel. 0xC3, read/write, paged, stored in user-editable NVM. Bit 1 commands whether the output is in high range (0b) or low range (1b). Bit 0 commands whether the output is operating in Forced Continuous Conduction Mode (1b) or Discontinuous Mode (0b). Command is named MFR_PWM_MODE and referred to as MFR_PWM_ MODE_LTM468X in LTpowerPlay. 87 MFR_GPIO_ RESPONSEn 0xD5 Action to be taken by the device when the GPIOn pin is asserted low by circuitry external to the unit. 0x00 (none; ignore), read/write, paged, stored in user-editable NVM. 107 MFR_OT_FAULT_ RESPONSE 0xD6 Action to be taken by the device when a control IC junction overtemperature fault is detected. 0xC0 (make the respective output’s power stage high impedance, i.e., three-stated; autonomous restart upon fault removal), read-only, non- paged, not stored in user-editable NVM. 104 MFR_IOUT_PEAKn 0xD7 Maximum measured value of READ_IOUTn since the last MFR_CLEAR_PEAKS. Default value not applicable, read-only, paged, not stored in NVM. 119 MFR_ADC_CONTROL 0xD8 ADC telemetry parameter for repeated fast ADC readback. 0x00, read/write, not paged, not stored in NVM. Allows telemetry readback rates up to 125Hz instead of 10Hz, nominal. 119 MFR_ADC_ TELEMETRY_ STATUS 0xDA ADC status during short-loop. Default value not applicable, read/write, not paged, not stored in NVM. ADC status indicating most recently digitized telemetry when engaged in short round-robin loop (MFR_ADC_CONTROL = 0x0D) 120 MFR_RETRY_ DELAYn 0xDB Retry interval during fault-retry mode. 0xFABC (350ms), read/write, paged, stored in user-editable NVM. 99 MFR_RESTART_ DELAYn 0xDC Minimum interval (nominal) the RUNn pin is pulled logic low by internal circuitry. 0xF320 (200ms), read/write, paged, stored in user-editable NVM. 98 MFR_VOUT_PEAKn 0xDD Maximum measured value of READ_VOUTn since the last MFR_CLEAR_PEAKS. Default value not applicable, read-only, paged, not stored in NVM. 118 MFR_VIN_PEAK 0xDE Maximum measured value of READ_VIN since the last MFR_CLEAR_PEAKS. Default value not applicable, read-only, non-paged, not stored in NVM. 118 PMBus COMMAND SUMMARY |
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