USB EZ-PD™ Type-C Forum Discussions
Hello, I own a notebook manufactured by Xiaomi (Mi Air 13.3) in China and currently it is not charging the battery.
Investigating that, I discovered a CYPD-2122-B-1637 6 4621 chip burnt, there is even a hole in it.
Does it need to be programmed before it is used? Or is it ready to be used?
Tthanks in advance, WilliamShow Less
I have a USB-C powered design where I am drawing my power +5V from VBUS. I need some sort of protection IC for situations where VBUS might be +20V that also deals \ protects from the Inrush Current requirements of USB. I am looking for an IC that will give me the protection against the over voltage but at the same time when VBUS is applied provide the required USB-C\USB 2.0 Inrush Current protection without the need of an enable pin !Show Less
Please let me know a CYPD3175-24LQX (CCG3PA) specification for PKG Thermal Impedance, theta-JA and theta-JC/CA.
I cannot find it on datasheet.
Which type does CCG3PA support in SDP(Standard
Downstream Port),DCP(Dedicated Charging port) or CDP(Charging Downstream Port) in case of
A capacitor of 390pF is put on each CC lines in CCG3 datasheet.
What purpose is this capacitor on CC line?
Best regards,Show Less
I'm working on a product with Type-C PD,
which would be a UFP device, capable of up to the full 100W power sinking.
After looking through your products, the CCG3 and CCG3PA seem appropriate,
but since the CCG3 has extra features which will not be needed (billboard USB, etc...),
I'm leaning towards the CCG3PA.
I was about to order the CCG3PA evaluation board, but then I wasn't able to find it in PSoC Creator or see any software examples, unlike the CCG3.
So I wanted to ask if it is currently possible to develop custom firmware for the CCG3PA, or whether I should start development with the CCG3 and port over later?
I am using the unpowered CY4521 (configured as a dongle) for development. When attaching the CY4521 to my DFP it never establishes a valid connection. The DFP power cycles Vbus every 2 - 3 seconds and the CY4521 never responds. I did some troubleshooting and measured the resistance of the unpowered CY4521 - CCG2 Rd1 to ground. I expected about 5.1K ohms. (See CCG2 Data sheet, figure 2 DB Rd direct attach to Rd1 pin. Also see, table 24, SID.PD.5, 5.1K ohms). I measure several hundred K ohms from Rd1 to GND. Is this correct?Show Less
We are working on a application where we need to daisy chain up to 100 adjacent devices together with USB-C. This is for a collaborative robotics solution. Each robot will have a USB-C controller with an upstream and downstream USB-C port. The daisy chain is used for power and data, including images. The hope/goal is that we can provide power to one of the robots and all the other robots get their power/data via the daisy chain. Couple of questions:
1) What is the maximum number of USB-C devices/controllers that can be daisy changed together?
2) Assuming each robot consumes at most 30 Watts, will there be a limit on the number of devices that can be daisy chained via a single power outlet?
Apologies if these questions seem naive. We're trying to validate if USB-C is the right solution or whether we should use something else. I'm still ramping up on the USB-C spec.
If any of the experts have suggestions/ideas on how to go about solving this, it would be greatly appreciated.
Do you have protect function between VCC and each ports for CCG3 &4?
If no, Do you have any solution for this protect?
Thank you.Show Less
I work CCG3 as DFP at first and I will activate Rp on CC1 and CC2.
And when UFP is connected though EMCA, I think that CCG3 have to open VBUS FET by controlling VBUS_P_CTRL0/1 pins.
Q1) How can I know CC1 or CC2 is connected and the voltage is correct for connecting to UFP in CCG FW? any interrupt happen?
Q2) How should I control the VBUS_P_CTRL0/1? any API prepared?
Best regards,Show Less