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Applications for CCG3PA in the datasheet only show connections to Type-C Receptacles.
Final systems, where this application are used, will convert the Type-C Receptacle to a Type-C Plug via a USB-C cable. The cable adds a pulldown resistor, Ra, of about 1k ohm and possibly a, EMCA device. If connecting a CCG3PA directly to a Type-C Plug, one CC line can be tied via 1k ohm to ground to provide symmetry. Are any other changes required from the basic design in Figure 8 of the CCG3PA datasheet?
Is the EMCA functionality needed if the physical cable isn't present?
What else is missing? Will CCG3PA software support the "Plug" configuration shown below?
Reference CCG3PA datasheet @ https://www.infineon.com/dgdl/Infineon-EZ-PD(TM)_CCG3PA_Datasheet_USB_Type-C_Port_Controller-DataShe...
Solved! Go to Solution.
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USB EZ-PD Type-C
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Hello,
Since CYPD3175 can only work as power source, you can connect the cc pin to Type-C Plug and leave alone another cc pin.
Type-C Plug connector has one cc pin and one VCONN pin, shown as above picture. If the plug side can only be used as power source, you can also let the VCONN floating.
Doing this makes the cc line connected and another cc line open from power source's perspective. As per type-c spec, the sink device could be recognized successfully.
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Hello,
Since CYPD3175 can only work as power source, you can connect the cc pin to Type-C Plug and leave alone another cc pin.
Type-C Plug connector has one cc pin and one VCONN pin, shown as above picture. If the plug side can only be used as power source, you can also let the VCONN floating.
Doing this makes the cc line connected and another cc line open from power source's perspective. As per type-c spec, the sink device could be recognized successfully.