What determines the VDDIO voltage for CCG3PA?

Announcements

Live Webinar: USB-C adoption. Simple & Cost-efficient solutions | April 18th @9am or 5pm CEST. Register now !

Tip / Sign in to post questions, reply, level up, and achieve exciting badges. Know more

cross mob
JoLu_3455101
Level 4
Level 4
5 likes given 5 solutions authored 25 replies posted

Unlike CCG3, the CCG3PA doesn't have an assigned pin to supply VDDIO. I can only find one instance of "VDDIO" in the CCG3PA datasheet and it didn't specify. My questions are:

1. What determines or what is the VDDIO voltage? My input power comes from either VBUS_IN=20V or VDDD=5V.

2. For my GPIOs configured as outputs, is the high-level voltage same as VDDIO? If not, what is it?

Thanks,

Jonathan

0 Likes
1 Solution
RajathB_01
Moderator
Moderator
Moderator
250 replies posted 100 replies posted 50 replies posted

Hi Jonathan,

1) The VDDIO supply is internally connected to VDDD. Thus if your input power is VDDD = 5V, VDDIO = 5V. If your input power is VBUS_IN, VDDIO = 3.3V; See page 6 of CCG3PA datasheet.

2) Yes, GPIO output high state will be at voltage level of VDDIO.

Regards,

Rajath

View solution in original post

0 Likes
1 Reply
RajathB_01
Moderator
Moderator
Moderator
250 replies posted 100 replies posted 50 replies posted

Hi Jonathan,

1) The VDDIO supply is internally connected to VDDD. Thus if your input power is VDDD = 5V, VDDIO = 5V. If your input power is VBUS_IN, VDDIO = 3.3V; See page 6 of CCG3PA datasheet.

2) Yes, GPIO output high state will be at voltage level of VDDIO.

Regards,

Rajath

0 Likes