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LTM4686BEVPBF 数据表(PDF) 89 Page - Analog Devices |
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LTM4686BEVPBF 数据表(HTML) 89 Page - Analog Devices |
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89 / 130 page  LTM4686B 89 Rev. 0 For more information www.analog.com APPENDIX C: PMBUS COMMAND DETAILS The part must be in the OFF state to process this command. Either the RUN pins must be low or the part must be commanded off. If the part is in the RUN state and this command is written, the command will be ignored and a BUSY fault will be asserted. When the part is commanded off and the frequency is changed, a PLL_UNLOCK status may be detected as the PLL locks onto the new frequency. This command has two data bytes and is formatted in Linear_5s_11s format. VOLTAGE Input Voltage (SVIN) and Limits COMMAND NAME CMD CODE DESCRIPTION TYPE PAGED DATA FORMAT UNITS NVM DEFAULT VALUE VIN_OV_FAULT_ LIMIT 0x55 Input supply (SVIN) overvoltage fault limit. R/W Word N L11 V Y 6.000 0xCB00 VIN_UV_WARN_LIMIT 0x58 Input supply (SVIN) undervoltage warning limit. R/W Word N L11 V Y 4.094 (0xCA0C) VIN_ON 0x35 Input voltage (SVIN) at which the unit should start power conversion. R/W Word N L11 V Y 4.250 (0xCA20) VIN_OFF 0x36 Input voltage (SVIN) at which the unit should stop power conversion. R/W Word N L11 V Y 4.000 (0xCA00) VIN_OV_FAULT_LIMIT The VIN_OV_FAULT_LIMIT command sets the value of the measured (SVIN) input voltage, in volts, that causes an input overvoltage fault. The fault is detected with the A/D converter resulting in latency up to 90ms, typical. This command has two data bytes and is formatted in Linear_5s_11s format. VIN_UV_WARN_LIMIT The VIN_UV_WARN_LIMIT command sets the value of the SVIN input voltage that causes an SVIN input undervoltage warning. The warning is detected with the A/D converter resulting in latency up to 90ms, typical. This command has two data bytes and is formatted in Linear_5s_11s format. VIN_ON The VIN_ON command sets the SVIN input voltage, in volts, at which the unit should start power conversion. This command has two data bytes and is formatted in Linear_5s_11s format. VIN_OFF The VIN_OFF command sets the SVIN input voltage, in volts, at which the unit should stop power conversion. This command has two data bytes and is formatted in Linear_5s_11s format. |
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