PI5USB30216C

www.diodes.com

June 2022

Document Number DS44976 Rev 1-2

9

©Diodes Incorporated

PI5USB30216C

ID

When PI5USB30216C is configured as host mode (or dual role acting as host), ID pin will be pulled low when a device is attached

to the type-C connector. The ID pin will work as an interrupt signal to acknowledge system when there is device attachment. It

should be noted the ID pin will not be driven low when an audio or debug accessory is detected, and ID pin will always stay Hi-Z

when port is in device mode.

Audio Adapter Accessory and Debug Accessory Mode

PI5USB30216C can detect audio adapter accessory or debug accessory attachment as per CC1/CC2 setting. This is reported in CC

Status Register (0x04) to help system to configure Audio Adapter Accessory Mode or Debug Accessory Mode accordingly.

VBUS Detection

PI5USB30216C 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.

ENB

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

exception of CC1, CC2, SCL, SDA & INTB are in High-Z state. CC1 and CC2 pins are pulled low with resistors Rd in disable state.

I2C 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 ENB. Connection State will also be reset and forced to be

“DISABLED” 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 ENB pin is low, part is enabled. The connection state will activate and detection will restart.

Dead Battery Startup

PI5USB30216C 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.