Other Parts Discussed in Thread: TPS25751,
Tool/software:
Dear Texas Instruments Support Team,
I am planning to design a dedicated UPS power supply circuit for the Raspberry Pi 5 that incorporates a PD controller.
In the intended use case, no data communication is required — the device will operate purely as a power source.
Since the Raspberry Pi 5 requires a relatively high power supply of 5V/5A, which is beyond the standard PD profiles,
I was previously advised in a separate E2E thread to consider the TPS25751, which has led me to this point.
Ideally, I would like to first obtain the TPS25751EVM evaluation kit to verify functionality. However,
since it is currently out of stock everywhere, I am considering building a custom board based on the datasheet.
If possible, I would greatly appreciate your assistance in reviewing the schematic once it is complete.
As an initial question — I believe that the TPS25751EVM uses the TM4C123GH6PMTR (ARM microcontroller)
to serve as a bridge (UART/I²C) for simple EEPROM programming via the GUI tool.
Since the firmware for the ARM microcontroller does not appear to be publicly available,
I am considering writing the PDO profile directly to the CAT24C512WI-GT3 (EEPROM) using a binary file writer.
If this understanding is correct, I assume that the TM4C123GH6PMTR microcontroller is not required in my implementation.
Could you please confirm whether this is the case?
Please note that, as I am not fluent in English, this message was prepared with the assistance of ChatGPT.
I apologize in advance for any unclear expressions and appreciate your understanding.
Best regards,
Yuki Ojima
