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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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L9680TR датащи(PDF) 29 Page - STMicroelectronics |
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L9680TR датащи(HTML) 29 Page - STMicroelectronics |
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29 / 286 page  DS11615 Rev 7 29/286 L9680 Start-up and power control 285 6.2 Power mode control Start-up and power down of the L9680 are controlled by the WAKEUP pin, VBATMON pin, VIN pin, device status and the SPI interface. There are four main power modes: power-off, sleep, active and passive mode. Each power mode is described below and represented in the state flow diagram shown in Figure 4. The descriptions include references to conditions and sometimes nominal values. The absolute values for each condition are listed in the electrical specifications section. Figure 4. Power control state flow diagram GAPGPS02250 ACTIVE MODE POWER-OFF MODE (All supplies disabled) PASSIVE MODE SLEEP MODE POWER OFF state WAKEUP MONITOR state AWAKE State WAKEUP > WU_on STARTUP state RUN state ER state WAKEUP> WU_mon WAKEUP < WU_mon [(WAKEUP < WU_off) AND (WakeUpFilt = 0)] WakeUpFilt= 1 AND VIN>VINGOOD WakeUpFilt= 0 OR VIN<VINBAD Twakeup > 9ms WakeUpFilt= 1 AND VIN<VINGOOD) POWERMODE SHUTDOWN state WakeUpFilt = 0 AND SPI_SYS_CTL(SPI_OFF=1) VIN < VINGOOD WakeUpFilt = 0 AND SPI_SLEEP WakeUpFilt = 0 AND SPI_SLEEP WakeUpFilt= 1 AND VIN>VINGOOD POR From any state Twakeup Timer: Cleared if (State = WAKEUP MONITOR or AWAKE ) and WakeUpFilt=0 VBATmon > VBGOOD (blanking time 10ms) VINGOOD blanking state WakeUpFilt = 0 AND SPI_SLEEP T > Tvingood_blk |
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