Hello world, so i have a project of 2 port USB-C powerbank, each port as it own CYPD3171-24LQXQ they work independly but i want to connect them using i2c so the one can tell another "hey i'm sourcing power now or i'm sinking power now".Show Less
My goal is to create a very low-cost converter that charges a USB Type C device from an existing 20V DC supply. My converter will have 20V input and USB Type C output. The device to be charged will then plug into my converters USB Type C output. I expect the hard part to be the analog power converter, which I can do. So, I am looking for a low-cost controller that will do the negotiating with the device to be charged and send control signals to my power converter circuits. If it matters, the device to be charged is capable of consuming the full 100W. However, I presume there is a trade-off between cost and power output. I should also mention that the device being charged is a laptop or something similarly beefy that expects to be a host normally.
Please direct me to a reference design for how to use a Cypress chip to charge a USB Type-C device from a steady voltage supply. Ideally, easy-to-understand documentation about the cost trade-offs between a 15W "Type-C only" solution vs. a full "Type-C PD" 100W solution would be included.
If a reference design is not possible, I would love a brief introduction as to how to achieve something like this. For example, do I need to create a host down-stream facing port (DFP) or can I get everything I need in a simpler/cheaper EMCA controller? If I create a DFP, then I hope I don't need an EMCA even if I want the full 100W.Show Less
We are using CCG3PA in consumer mode only.
Need information on below pins
1. VBUS_C_MON_DISCHARGE --> This pin used to Monitor VBUS Voltage ?? What is the resolution and sampling rate??
2. VBUS_IN_DIS CHARGE --> Can we leave this open as we are not using CC3PA as provider ??
3. CSP -->We are using external current sense to monitor current. Can we leave this pin open ??
4. If we power CCG3PA using 3.3V, What are the GPIO, I2C, and SPI voltage levels ??
Hi. We will be using a CCG3PA in our design. Also wanting to have the ability to program a fresh PCBA over SWD either at the factory or when out in the field. We understand SWD specifications enough to write the R/W routines. However, we believe we are re-inventing the wheel here.
1) Are the details on how the PC communicates over USB with your miniprog3 available to the public? Available under NDA? These details would allow us to use the Cypress s/w tools to flash our hardware design over SWD.
2) Is the USB to SWD miniprog3 bridge available in source code format to the public? Available under NDA?
Plan B is to start coding our own solution asap. This widget will be used strictly for flashing the CCG3PA and not for debugging. The use of the reflashing over CC lines is still too high of a risk for our product roadmap and also demands that a bootloader be applied using SWD first. Prefer that each widget have the ability to flash over SWD.
Thanks in advance.Show Less
Hi, I have a question about market format of CYPD5225-96BZXIT.
I cannot find market format of CYPD5225-96BZXIT on CYPRESS GENERAL MARKING FORMAT_APRIL 2019 - REV19.pdf
Could someone can provide market format of CYPD5225-96BZXIT?Show Less
I'm trying to decide if I can update our CCG3 device through the exposed Type-C port. Will external hardware be required, or can I connect directly to a PC with a C-to-C cable?Show Less
hello i have this whole question:
i downloaded the power bank reference design PB-811 and i removed the USB-A i have kept the micro usb for charging and usb- for dual role.
here i have the project found in PSOC CREATOR the CYPD3171-24LQXL-pb.cydsn.
1)i would like to have USB-C dual role to sink and source.
2)i would like it to support BC v1.2, Apple Charging, Qualcomm Charging 4.0, Samsung AFC.
what do i need to change in the code?
my schematic is belowShow Less
Display cannot work when using our USB3.1 TypeC active cable to connect display and NB which uses CYPD4255-96BZXI as USB interface IC. It seems that this NB limits the current of Vconn at startup stage. If over current detected, it will shutdown the power of Vconn. The inrush current of our Active cable is about 400mA.
Does CYPD4255-96BZXI really limits the current of Vconn? If yes, what's the value of limitation current?Show Less