RM23712 TPS
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3.2.3.1 Output Voltage Timing ....................................................................................................... 25
3.2.3.2 Overshoot ........................................................................................................................... 26
3.2.3.3 Undershoot ......................................................................................................................... 26
3.2.3.4 Temperature coefficient ...................................................................................................... 26
3.2.4 Control and Indicator functions ........................................................................................................... 26
3.2.4.1 PSON# Input Signal (Power supply enable) ...................................................................... 26
3.2.4.2 Power OK (PG or PWOK) Output Signal .......................................................................... 27
3.2.4.3 SMBAlert# (PSAlert) Output Signal Pin ............................................................................ 27
3.2.4.4 A0 ....................................................................................................................................... 28
3.2.4.5 A1 ....................................................................................................................................... 28
3.2.4.6 12VRS and Return Sense ................................................................................................... 28
3.2.4.7 Present ................................................................................................................................ 28
3.2.4.8 SDA and SCL ..................................................................................................................... 28
3.3 Protection circuits ................................................................................................................................ 29
3.3.1 Over Voltage Protection (OVPmain & OVPauxilary ) ........................................................................ 29
3.3.2 Over Current and Short Circuit Protection (OCP/SCPmain & OCP/SCPauxilary ) ............................ 29
3.3.3 Over Temperature Protection (OTP).................................................................................................... 29
3.3.4 Fan Failure Protection .......................................................................................................................... 30
3.4 Power Supply Management ................................................................................................................. 30
3.4.1 Hardware Layer ................................................................................................................................... 30
3.4.2 Power Supply Management Controller (PSMC) ................................................................................. 31
3.4.2.1 Related Documents ............................................................................................................. 31
3.4.2.2 Data Speed .......................................................................................................................... 31
3.4.2.3 Bus Errors ........................................................................................................................... 31
3.4.2.4 Write byte/word .................................................................................................................. 32
3.4.2.5 Read byte/word ................................................................................................................... 32
3.4.2.6 Block write/read ................................................................................................................. 33
3.4.2.7 Sensor Accuracy ................................................................................................................. 33
3.4.2.8 PSMC Sensors .................................................................................................................... 34
3.4.3 Power Supply Field Replacement Unit (FRU) .................................................................................... 34
3.5 Smart On Function ............................................................................................................................... 40
3.5.1 PMBus command for Smart On ........................................................................................................... 40
3.5.1.1 Hardware Connection ......................................................................................................... 40
3.5.1.2 Configuring Smart On with SMART_ON_CONFIG (D0h) .............................................. 40
3.5.2 Smart Standby Power Supply Operating State .................................................................................... 40
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