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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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TPS658620ZQZT датащи(PDF) 46 Page - Texas Instruments |
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TPS658620ZQZT датащи(HTML) 46 Page - Texas Instruments |
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46 / 104 page  3.42 TPS658620 OPERATING MODES 3.43 STATE MACHINE DIAGRAM SLEEP STATE nNOPOWER=LO SUPPLIESOFF RTCREGISTERSRESET IFRTC_OUT < V EEPROM-LOADABLEREGISTERS NOT RESET,KEEP VALUES ALL OTHERREGISTERSRESET TODEFAULT NOI2CCOMMUNICATION UVLO_RTC ALL SUPPLIES OFF TPS6586X INUVLO MODE ANY STATE V(AC)>V OR V(USB)>V OR V(BAT)>V UVLO UVLO UVLO V(2V2)<V UVLO NOPOWER V(SYS)>V ANDt>T LOWSYS POR POWERGOODCHECK (B) FORCERTC_OUT LDOON NOPGOODFAULT REBOOT SET VIA I2COR nHOTRST PINLOPULSE DETECTED RTC (B) ALL SUPPLIESOFF FORCERTC_OUT LDOOFF NNOPOWER=LO RESET/START T TIMER CHECK HARDREBOOT ALL SYNCSUPPLIESOFF nNOPOWER=LO RESET/START T TIMER WAIT [RESUMEPINHIDETECTED ]OR [PGOODFAULT ANDNORMAL MODESET]OR SLEEP MODESET VIA I2C OR [HOTPLUG TIMEREXPIRED AND V(SYS)< V FOR5mSEC AND SLEEP BY LOWSYS ENABLEDVIA I2C] LOW_SYS t> T WAIT1 SUPPLY SEQUENCING COMPLETE AND SUPPLYSEQ (B) FORCERTC_OUT LDOON RTCREGISTERSNOT RESET,KEEP VALUES ALL OTHERREGISTERSRESET TODEFAULT RESET/START TIMERS: T , T , T EXECUTESUPPLY SEQUENCING RESET/START TIMER T WHEN NORTC HOTPLUG BOOT SYNCEND t>T WAIT NO THERMAL FAULT AND SLEEP EXIT SET VIA I2C V(RTC_OUT)>V OR t> T RTCLOW MAX POWERUP (B) ALL REGISTERSRESET TO DEFAULT ENABLEPOWERPATH OPERATION nNOPOWER=LO t> T - WAIT T WAIT1 nNOPOWER=LO BOOT TIMEREXPIRES OR [HOTPLUG TIMEREXPIRES AND V(SYS)<V FOR5mSEC AND SLEEP BY LOWSYSENABLED] LOW_SYS THERMAL FAULT ANY STATE RTC_ON (B) ALL SUPPLIESOFF FORCERTC_OUT LDOON ENABLEnNOPOWER TIMER RESET/START T TIMER MAX V(SYS)>V ANDt> T AND (CYCLEMODEENABLED AND CYCLE=POWER-UP DONE)] LOW_SYS CHECK WHEN ANY OF THEBOOT PHASE STATES ARESET: (B) 1-WRITE TODVMREGISTERSISDISABLED 2-SM0EN,SM1EN,SYNCEN,LDO4ENPULL-DOWNRESISTORSON/ OFF 3-SUPPLY OUTPUT DISCHARGERESISTORSON BOOT TIMEREXPIRES OR [HOTPLUG TIMEREXPIRES AND V(SYS)<V FOR5mSEC AND SLEEP BY LOWSYSENABLED] LOW_SYS CYCLE=POWER UP DONE [DRESUME=HIDETECTED] AND SLEEP NOT SET BY THERMAL FAULT] AND CYCLEMODESET CYCLE= INITIAL POWERUP NORMAL MODE ENABLEWRITE TODVMREGISTERS RTCREGISTERSRESET IFRTC_OUT <V TURNOFFENABLEPINPULL-DOWNREGISTERS ENABLESUPPLY OUTPUT DISCHARGE RESISTORS UVLO_RTC REBOOT REQUEST RESET/START T TIMER nNOPOWER=LO WAIT SLEEP REQUEST RESET/START T TIMER WAIT WAIT (B) FORCERTC_OUT LDOON NNOPWER=LO ALL SUPPLIESOFF ALL REGISTERSRESET TODEFAULT RESET/START TIMERS: T , T , T NORTC HOTPLUG BOOT CYCLE=INITIAL POWERUP AND CYCLEMODEENABLED AND V(SYS)>V AND t> T LOW_SYS CHECK t> T AND REBOOT REQUEST TOHARDREBOOT ENABLED WAIT TPS658620 Advanced Power Management Unit SLVS993 – OCTOBER 2009 www.ti.com The TPS658620 has an internal state machine that sets the operating modes based on the system status and host commands. The state machine directly controls the state of the integrated supplies during power-up sequences and normal operation. It also can change the on/off state of all integrated power supplies and peripherals to implement protection functions or execute external hardware control or host software commands. Figure 3-11. TPS658620 Operation Mode State Machine DETAILED DESCRIPTION 46 Submit Documentation Feedback |
Аналогичный номер детали - TPS658620ZQZT |
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Аналогичное описание - TPS658620ZQZT |
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