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FUSB308B датащи(PDF) 12 Page - ON Semiconductor

номер детали FUSB308B
подробное описание детали  USB Type-C Port Controller with USB-PD
PDF  53 Pages
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производитель  ONSEMI [ON Semiconductor]
домашняя страница  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

FUSB308B датащи(HTML) 12 Page - ON Semiconductor

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FUSB308B
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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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