SLVSD02D March 2015 – June 2019 TPS65982
The TPS65982 features support for DisplayPort over Type-C alternate mode and manages sinking and sourcing of power in Power Delivery. The block diagram, shown in Figure 79, shows a two port system that is capable of charging from either Type C port over PD, DisplayPort Alternate Mode, and delivering Battery Power to a bus-powered device. With the DisplayPort support, the TPS65982 controls an external SuperSpeed multiplexer, HD3SS460, to route the appropriate super-speed signals to the Type-C connector. The HD3SS460 is controlled through GPIOs configured by the TPS65982 application code and the HD3SS460 is designed to meet the timing requirements defined by the DisplayPort over Type-C specification. A system controller is also necessary to handle some of the dynamic aspects of Power Delivery such as reducing power capabilities when system battery power is low. Audio accessory device is supported by the design as well. Although USB_RP_P and USB_RP_N are not shown in the block diagram, they must be connected to the system-side IC that will receive and send USB2.0 high-speed data through the integrated multiplexer of the TPS65982.