Pin

Electrical

value

Operation conditions

Comment

Type-C attached

state

VDD pin

monitoring

VBUS_SENSE pin

monitoring

VBUS_EN_SNK

0

Attached.SNK

or

Debug

Accessory.SNK

Not applicable

VBUS is within valid

voltage range if

VBUS

_VALID_RANGE

enabled

or

VBUS > UVLO if

VBUS

_VALID_RANGE

disabled

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 if

VBUS

_VALID_RANGE

enabled

or

VBUS < UVLO

if

VBUS

_VALID_RANGE

disabled

The signal is de-

asserted when at

least one non valid

operation condition is

met

“Type-C attached state” refers to the Type-C FSM states as defined in the USB Type-C standard specification and

as described in the I²C register CC_OPERATION_STATUS.

“VDD pin monitoring” is valid only in source power role. Activation of the UVLO and OVLO threshold detections

can be done through NVM programming (see Section 6 Start-up configuration) and also by software through

the I²C interface. When UVLO and/or OVLO threshold detection is activated, VBUS_EN_SRC pin is asserted only

if the device is attached and the valid threshold conditions on VDD are met. Once the VBUS_EN_SRC pin is

changed through NVM programming (see Section 6 Start-up configuration) and also by software through the

I²C interface. VBUS_EN_SRC pin is maintained asserted as long as the device is attached and a valid voltage

3.4

3.4.1

3.4.2

met:

STUSB1602

VCONN supply

DS11254 - Rev 5

page 11/39