Dock management controller

The TPS65982DMC is a dock management

controller for docks, hubs, and monitors implementing TI PD controllers. The

TPS65982DMC includes a USB Low Speed endpoint capable of receiving firmware updates

for the system’s PD controllers. The firmware update is performed securely using

SHA-256 and RSA-3072 authentication. In addition the endpoint provides USB billboard

functionality. The TPS65982 DMC integrates back to back NFET drivers for controlling

the system power supply from an external adapter. The DMC monitors the current

through the adapter input path as well as other points of the system and adjusts the

power advertisement of managed PD controllers to ensure the external adapter is not

overloaded. When included in USB4 systems the TPS65982DMC monitors the connection

state of the upstream facing port and updates the connection state of the downstream

facing ports to ensure consistent data behavior across the system.