AP43776Q

Document number: DS43207 Rev. 2 - 2

4 of 13

www.diodes.com

November 2022

© Diodes Incorporated

AP43776Q

Typical Applications Circuit (continued)

Application 3: Alternate Mode and BC 1.2 CDP Mode Support

The AP43776Q not only supports power protocol decoding, but also provides data link capability. Figure 4 illustrates an AP43776Q application

scenario of power source and data link.

One of the ports is used as a Type-C connector, which is connected to the Notebook host or smart phone device. The power from Down Facing

Port (DFP) is sourced out to the Notebook/device, and the video data from Up Facing Port (UFP) is linked to the car navigation system through the

AP43776Q supporting alternative mode. During the handshake, the AP43776Q decodes the alternative mode information of the Notebook

host’s

or device’s CC commands, and then the information is sent to the high-speed mux to switch the data path accordingly.

The other ports may be used as a Type-A connector supporting BC 1.2 CDP mode, where not only power is sourced out for the device, but also

data may be linked to the car navigator at the same time.

Figure 4. The AP43776Q supports DP alternative mode and BC 1.2 CDP mode for data link during power sourcing