Hi,

These pins drive the consumer path FET's. I measured gate voltage 10.5V with 5V VBUS supply. This seems to be good marginal to get low Rds for the FET's. However when PD negotiates 20V/3A VBUS (measured 19.7V) the gate voltage is mere 20.5V.  The FET heats up on higher currents so I assume reason is the low gate voltage and thus too high Rds.

What kind of  driver voltage I should expect to see on 20V VBUS, I assume it should be around 25V?
We're using CYPD3120.

Hello

Regarding ADC of PMG1-B1, there is the following description in Datasheet of PMG1-B1.

＜Peripherals and GPIOs＞

• 2x 8-bit ADCs

• 1x 12-bit ADC

Q）From the above, it is recognized that only three GPIOs with ADC functions can be used, But, Is it possible to use five ADC functions of the attached GPIO at the same time? If possible, please tell me how to set

Best Regards

I wanna build a Charge-Through VCONN Powered Device (CT-VPD).
I went throw the product catalog of infineon and other vendors and figured that the CCG2 is probably the right chip for my use case. I put a picture of my current PCB design as an attachment. I would appreciate your feedback on that design.

You can find some info on CT-VPDs from the USB-IF here, if you want to read up on the topic: https://www.usb.org/document-library/ctvpds-and-making-your-own-usb-cr-thingamajig

For a bit more context, my design is a USB keyboard attachment for a smartphone. The smartphone does support USB-PD 3.0 and can charge with more than 5.0V on VBUS. The CCG2 chip should enable the smartphone connected to the upstream port of my PCB, to power the keyboards micro controller via VCONN and still be charged with 5.0V or more over VBUS when a capable USB-PD charger is connected to the Charge-Through port of my PCB. You can see a good overview of the ports involved on page 10 of the PDF from the USB-IF. My keyboard PCB pretty much follows the same concept as the audio dongle that is shown there.

Because this setup is quite a new approach there is no application note in the datasheet of the CCG2 for it yet. Because of that I'm not sure how to properly design the PD circuitry. I was hoping that you could take a look at my design and give me some feedback if the design should work like that or if I need some adjustments.

I hope I can create a working design with the CCG2 chip or I would need to make a redesign with another vendor. I'm already looking for alternatives but the support engineers there are a bit slow to answer.

If you got any questions, just shoot them at me and I'll try to answer them.

尊敬的工程师，您好，

1、我想了解一下CCG3PA系列与CCG7D系列的主要区别有哪些，有没有相关对照表参考。

2、我看了相关资料两款芯片都支持后座娱乐系统，这样的话，如果客户在功率方面要求较低的情况下，更倾向于选择CCG3PA。如果客户选择CCG3PA去应用后座娱乐系统可以得到相关的技术支持吗？

3、CCG3PA系列与CCG7D系列后座娱乐系统的应用支持基于DRD的投屏吗。

最好的祝福！

I am a beginner, I have never worked with these controllers.

I downloaded the code example for CYPD3175 and expected that fast charging support would be implemented in this example.

But when testing with QC3 and QC4, the output voltage is always 5 V (9 and 12 V are never at the output).

I can manually change the output voltage using the psrc_set_voltage function. But in order to change it automatically I need to have access to D+ and D-.

I would like to find out if this scheme is correct (the scheme is attached below) for the CYPD3175 Power adapter.
I would also like to know where the D+ and D- pins are initialized in the code example for CYPD3175.
I would also like to know how I can count the voltage at pins D+ and D-. Is it possible?
And if it is possible to count the voltage on D+ and D- , then I would like to know what functions will help me count the voltage on these pins.
Please help me, I reread the entire CGx_Power_SDK_API_Guide and could not find the functions for reading the voltage on D+ and D-.

Please help me solve this problem.

Best Regards,

Aleksey

I am a beginner, I have never worked with these controllers.

I downloaded the code example for CYPD3175 and expected that fast charging support would be implemented in this example.

But when testing with QC3 and QC4, the output voltage is always 5 V (9 and 12 V are never at the output).

Please help me solve this problem.