Hello Rock,
The hardware seems ok so I suspect there is a firmware issue, especially if the PFC_OK is just a GPIO output.
Is the PFC_OK controlled by an interrupt within a state machine? If so, then what may be happening is that the UCD3138 is going back…
Part Number: UCD3138 Tool/software: Hi Champ,
I am asking for my customer.
They want to implement the phase-locked loop (PLL) technique on the UCD3138 for AC input detection, is there any source code / app. note that could be referred to ?
Only find similar…
Tom,
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Thanks
Hello ML,
Is this your question: How do you flash production firmware onto a new UCD3138 chip when JTAG is not enabled by default? Does the JTAG have to be enabled by PMBus first or is there another method to flash new firmware via JTAG only ?
I will get…
Part Number: UCD3138 Tool/software: Hello：
1. In the 2A module, UCD3138 is damaged at pin 22, which is a short circuit to ground. This pin is used for ON/OFF control. It has a 10K resistor pulled down internally and a 10nF capacitor connected in parallel…
Part Number: UCD3138128A Other Parts Discussed in Thread: UCD3138 , , PMP40586 , UCC29002 Tool/software: Good morning
As you advised, I ordered two boards of the PMP40586 type to start studying my project as indicated in the thread 'UCD3138128A: UCD3138…
