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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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FUSB308BVMPX 데이터시트(PDF) 12 Page - ON Semiconductor |
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FUSB308BVMPX 데이터시트(HTML) 12 Page - ON Semiconductor |
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12 / 53 page  FUSB308B www.onsemi.com 12 Figure 10. Transition to High Voltage Sourcing using SRC_HV Controlled Path (FUSB308B) Accepted High Voltage Policy Engine requests for VBUS transition to high voltage Read ALERT ALERT.I_PORT_PWR=1b? Enable High Voltage Path SRC = High SRC_HV = High Monitor VALARMLCFG Service other ALERTS No FUSB308B TCPM Read ALERT Read PWRSTAT Write VALARMH/LCFG Write PWRCTRL.DIS_VALARM=0b Write PWRCTRL.AUTO_DISCH=1b Sourcing vSafe5V PWRSTAT.SOURCE_VBUS=1b PWRSTAT.SOURCE_HV=0b SRC = High SRC_HV = Low Yes Prepare FUSB307/8 for HV Transition Write: PWRCTRL.DIS_VALARM=1b PWRCTRL.AUTO_DISCH=0b Set New VBUS Alarm thresholds VALARMH_CFG =vSrcNew (Max) VALARML_CFG = vSrcNew (Min) Voltage Transition Complete SRC = Low Set PWRSTAT.SOURCE_HV =1b Set PWRSTAT.SOURCE_VBUS=0b Set ALERT.I_PORT_PWR = 1b Write COMMAND.SourceVbusHighVoltage VALARMLCFG trip? Yes Sourcing HV Notify Policy Engine that voltage transition is complete Transition to HV using SRC_HV Path VALARMLCFG used detect when transition finished |
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