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LTM4686BIVPBF 数据表(PDF) 39 Page - Analog Devices |
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LTM4686BIVPBF 数据表(HTML) 39 Page - Analog Devices |
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39 / 130 page  LTM4686B 39 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 VOUT_MAXn 0x24 The upper limit on the commandable output voltage. 0x3A14 (3.630V), read/write, paged, stored in user-editable NVM. 90 VOUT_MARGIN_ HIGHn 0x25 Margin high output voltage set point. Must be greater than VOUT_COMMANDn. 0x10CD (1.050V), read/write, paged, stored in user-editable NVM. 91 VOUT_MARGIN_ LOWn 0x26 Margin low output voltage set point. Must be less than VOUT_COMMANDn. 0x0F33 (0.95V), read/write, paged, stored in user-editable NVM. 91 VOUT_TRANSITION_ RATEn 0x27 The rate at which the output voltage changes when VOUTn is commanded to a new value via I2C. 0x08B33 (25mV/ms), read/write, paged, stored in user-editable NVM. 97 FREQUENCY_ SWITCH 0x33 The switching frequency setting. 0x03E8 (1MHz), read/write, non-paged, stored in user-editable NVM. 88 VIN_ON 0x35 The undervoltage lockout (UVLO)– rising threshold. 0xCA20 (4.250V) Voltage as monitored on the “SVIN” pin, read/write, non-paged, stored in user-editable NVM. 89 VIN_OFF 0x36 The undervoltage lockout (UVLO)– falling threshold. 0xCA00 (4.000V) Voltage as monitored on the “SVIN” pin, read/write, non-paged, stored in user-editable NVM. 89 IOUT_CAL_GAINn 0x38 The ratio of the voltage at the control IC’s current-sense pins to the sensed current, in mΩ, at 25°C. Trimmed at ATE, read/write, paged, stored in factory-only NVM. Writes to this register not recommended. 93 VOUT_OV_FAULT_ LIMITn 0x40 Output overvoltage fault limit. 0x119A (1.100V), read/write, paged, stored in user-editable NVM. 90 VOUT_OV_FAULT_ RESPONSEn 0x41 Action to be taken by the device when an output overvoltage fault is detected. 0x80 (immediate off; no retry), read/write, paged, stored in user-editable NVM. 100 VOUT_OV_WARN_ LIMITn 0x42 Output overvoltage warning threshold. 0x1133 (1.075V), read/write, paged, stored in user-editable NVM. 91 VOUT_UV_WARN_ LIMITn 0x43 Output undervoltage warning threshold. 0x0ECD (0.925V), read/write, paged, stored in user-editable NVM. 92 VOUT_UV_FAULT_ LIMITn 0x44 Output undervoltage fault limit. 0x0E66 (0.900V), read/write, paged, stored in user-editable NVM. 92 VOUT_UV_FAULT_ RESPONSEn 0x45 Action to be taken by the device when an output undervoltage fault is detected. 0xB8 (non-latching shutdown; autonomous restart upon fault removal), read/write, paged, stored in user-editable NVM. 101 IOUT_OC_FAULT_ LIMITn 0x46 Output overcurrent fault threshold (cycle-by-cycle inductor peak current). 0xE240 (36A), read/write, paged, stored in user-editable NVM. 94 IOUT_OC_FAULT_ RESPONSEn 0x47 Action to be taken by the device when an output overcurrent fault is detected. 0x00 (try to regulate through the fault condition/event; limit the cycle-by- cycle peak of the inductor current to not exceed the commanded IOUT_ OC_FAULT_LIMIT), read/write, paged, stored in user-editable NVM. 103 IOUT_OC_WARN_ LIMITn 0x4A Output overcurrent warning threshold (time-averaged inductor current). 0xDA90 (20.5A), read/write, paged, stored in user-editable NVM. 94 OT_FAULT_LIMITn 0x4F Overtemperature fault threshold. 0xF200 (128°C), read/write, paged, stored in user-editable NVM. 96 |
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