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LTM4686BIVPBF 数据表(PDF) 95 Page - Analog Devices |
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LTM4686BIVPBF 数据表(HTML) 95 Page - Analog Devices |
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95 / 130 page  LTM4686B 95 Rev. 0 For more information www.analog.com APPENDIX C: PMBUS COMMAND DETAILS In response to the IOUT_OC_WARN_LIMIT being exceeded, the device: • Sets the NONE_OF_THE_ABOVE bit in the STATUS_BYTE • Sets the IOUT bit in the STATUS_WORD • Sets the IOUT Overcurrent Warning bit in the STATUS_IOUT command, and • Notifies the host by asserting ALERT pin, unless masked. This condition is detected by the ADC so the response time may be up to 90ms, typical. The IOUT_OC_FAULT_LIMIT is ignored during TON_RISE and TOFF_FALL. This command has two data bytes and is formatted in Linear_5s_11s format TEMPERATURE Power Stage DCR Temperature Calibration COMMAND NAME CMD CODE DESCRIPTION TYPE PAGED DATA FORMAT UNITS NVM DEFAULT VALUE MFR_TEMP_1_GAIN 0xF8 Sets the slope of the power stage temperature sensor. R/W Word Y CF Y 0.995 0x3FAE MFR_TEMP_1_OFFSET 0xF9 Sets the offset of the power stage temperature sensor with respect to –273.1°C. R/W Word Y L11 C Y 0 0x8000 MFR_TEMP_1_GAIN The MFR_TEMP_1_GAIN command will modify the slope of the power stage temperature sensor to account for non- idealities in the element and errors associated with the remote sensing of the temperature in the inductor. This command has two data bytes and is formatted in 16-bit 2’s complement integer. N = 8192 to 32767. The effective adjustment is N • 2–14. The nominal value is 1. MFR_TEMP_1_OFFSET The MFR_TEMP_1_OFFSET command will modify the offset of the power stage temperature sensor to account for non-idealities in the element and errors associated with the remote sensing of the temperature in the inductor. This command has two data bytes and is formatted in Linear_5s_11s format. The part starts the calculation with a value of –273.15 so the default adjustment value is zero. Power Stage Temperature Limits COMMAND NAME CMD CODE DESCRIPTION TYPE PAGED DATA FORMAT UNITS NVM DEFAULT VALUE OT_FAULT_LIMIT 0x4F Power stage overtemperature fault limit. R/W Word Y L11 C Y 128 0xF200 OT_WARN_LIMIT 0x51 Power stage overtemperature warning limit. R/W Word Y L11 C Y 125 0xEBE8 UT_FAULT_LIMIT 0x53 Power stage undertemperature fault limit. R/W Word Y L11 C Y –45 0xE530 |
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