ZHCSJP2A May 2019 – August 2021 TPS65988DJ
PRODUCTION DATA
Certain SoCs can support USB, DisplayPort and the muxing required for Type-C. The systems that use this architecture may need a re-driver to ensure signal integrity to from the SoC to the Type-C connectors. Generally the SoC is controlled through I2C and must be connected to the I2C1 Master on the TPS65988DJ. A re-driver can be controlled through GPIO or I2C. The Embedded controller is connected to the I2C2 Slave on the TPS65988DJ. Figure 9-9 shows the SoC controlled though I2C and the Re-Driver controlled through GPIO. Figure 9-10 shows the SoC and Re-Driver controlled though I2C. The TPS65988DJ’s two internal power paths provide VBUS which is taken from the System 5 V for Port and will control the external sink path to charge the system through USB PD. The System 5 V will also power PP_CABLE1/2 on the TPS65988DJ to supply VCONN to Type-C e-marked cables and Type-C accessories. An embedded controller EC is used to communicate to the TPS65988DJ for additional control and to relay information back to the operating system. An embedded controller can control additional features such as entering and exiting sleep modes, changing source and sink capabilities depending on the state of the battery, UCSI support, control alternate modes, and so forth.