6.6.2 Analog and digital ping
The following figure shows analog ping (presence detection) on AC1. Then a Q factor measurement follows.
After that, the USB PD raises its voltage from 5 V to 9 V, the Vbuck is raised to 5 V and finally a digital ping is
executed.
Note: AC2 is inactive as the ping is performed in half bridge mode.
Figure 41. Analog and digital ping
UM3286
STEVAL-WBC2TX70 description
UM3286 - Rev 1
page 59/84
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