STUSB1602 datasheet(42/55 Pages) STMICROELECTRONICS

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STUSB1602

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DocID028319 Rev 2

VBUS power path assertion

Table 25. Conditions for VBUS power path assertion in source power role

Electrical

value

Operation conditions

Comment

Type-C attached

state

VDD pin

monitoring

VBUS_SENSE pin

monitoring

VBUS_EN_SRC

Attached.SRC

UnorientedDebug

Accessory.SRC

OrientedDebug

Accessory.SRC

VDD < OVLO

if VDD pin is

supplied

VBUS is within valid

voltage range

The signal is

asserted only if all

the valid operation

conditions are met

HiZ

Any other state

VDD > OVLO

if VDD pin is

supplied

VBUS is out of valid

voltage range

The signal is

de-asserted when at

least one non valid

operation condition

is met.

Table 26. Conditions for VBUS power path assertion in sink power role

Electrical

value

Operation conditions

Comment

Type-C attached

state

VDD pin

monitoring

VBUS_SENSE pin

monitoring

VBUS_EN_SNK

Attached.SNK

Debug

Accessory.SNK

Not applicable

VBUS is within valid

voltage range

The signal is

asserted only if all

the valid operation

conditions are met

HiZ

Any other state

Not applicable

VBUS is out of valid

voltage range

The signal is

de-asserted when at

least one non valid

operation condition

is met.

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