Hello Zihang,
We do not have a detailed document that explains exactly how the UCD LLC firmware works. Most of the firmware is just configuring the peripherals since the control algorithm is relatively simple. However, you can view this E2E post on…
Hello Martin,
Thank you for your interest in the UCD devices. Can you please elaborate on why you cannot use the "Command Program to Jump to ROM" feature in the GUI? The GUI is the preferred way to flash and program the GUI. Before you get into JTAG…
Hello,
Try turning off and on the input power supply. If you are operating the UCD3138PFCEVM-026, then I recommend supplying 3.3V power via the UCD3138PFCEVM-026 instead of the USB-TO-GPIO2. If you use the Fusion Studio Online GUI, then the code will…
Hi Kunal,
Time taken for PG to be active high >> than Tss (hence the insrush is controlled) leading to safe operation
If we have UCD followed by Efuse section were i would be monitoring the main input supply of the card and then turning ON downstream…
Hello Soundharya,
Have you modified the existing UCD PFC firmware in any way? Also, can you show what Fusion Studio looks like when you are below 50% load? What electronic load are you using? While the GUI shows a current of 2A, there may be instantaneous…
Hello Tejas,
The UCD3138 is a good choice since it is a digital controller that combines the flexibility of an MCU without requiring extensive firmware development. You can also use our Fusion Studio GUI to monitor and configure values real-time.
…
Hello Tasmiya,
I have already answered your question from your previous E2E post on how to get started with the UCD3138 control card. Please refer to that answer. Also, please watch the UCD training lab videos. They walk you through exactly how to get…
Hi A Yang,
Please see the training lab video on the UCD locked flash problem: https://www.ti.com/video/series/introduction-to-digital-power-controllers.html . Specifically, "UCD3138 Digital Power Tools: Boot ROM and program flash checksums" at the 4…
Hi
SOFT_RESET is not designed to restart the power sequence. it is to reset the UCD and it is always good to turn off all the enable for issuing soft-reset command.
When UCD reset, the flash data is copied into the RAM.
Regards
Yihe
Hello Neal,
Please see the Introduction to UCD3138x Devices ( https://www.ti.com/lit/an/sluaas7/sluaas7.pdf ). This answers the questions: What is the UCD and Why should you use the UCD?
In summary, the UCD3138x controllers are digital controllers…
