PI5USB30216D

www.diodes.com

August 2022

Document Number DS44977 Rev 1-2

9

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PI5USB30216D

VBUS Detection

PI5USB30216D detects VBUS to determine the attached state when port is a device. A 910kohm +/- 5% is required to connect

VBUS of the connector to VBUSDET input pin to protect the IC from the possible high voltage of VBUS during alternative mode.

EN

EN is an active high enable input pin. When EN pin is low, part is in disable and low power state. All outputs, with the exception

port will also be reset during disable state. SCL & SDA are still functional when the part is disable and ADDR is not floating. I2C

port will also reset during every transition (rising or falling edge) of EN. Connection State will also be reset and forced to be

Unattached.SNK state. Interrupt will be set low and Register 03H/04H (Interrupt/CC status) will be updated to indicate the change

of state. However, disable has no effect on the value of Register 02H (Control).

When EN pin is high, part is enabled. The connection state will activate and detection will restart.

Dead Battery Startup

PI5USB30216D ensures dead battery charging when VDD=0V. Both CC1 and CC2 will be pulled down when VDD=0V. Such

configuration helps other host port detect the dead battery port as a device mode port and enable charging through VBUS.