SLVSIM2A June 2025 – August 2025 TPD4S480-Q1
PRODUCTION DATA
The CC pins on the USB Type-C connector serve many functions; one of the functions is to be a provider of power to active cables. Active cables are required when desiring to pass greater than 3 A of current on the VBUS line or when the USB Type-C port uses the super-speed lines (TX1+, TX2–, RX1+, RX1–, TX2+, TX2–, RX2+, RX2–). When CC is configured to provide power, it is called VCONN. VCONN is a DC voltage source in the range of 3V to 5.5V. If supporting VCONN, enable the VCONN provider to have the capability to provide 1.5 W of power to a cable; this translates into a current range of 273mA to 500mA (depending on the VCONN voltage level).
When a USB Type-C port is configured for VCONN and using the TPD4S480-Q1, this VCONN current flows through the OVP FETs of the TPD4S480-Q1. Therefore, the TPD4S480-Q1 has been designed to handle these currents and have an RON low enough to provide a specification compliant VCONN voltage to the active cable.