Part Number: UCD3138 Other Parts Discussed in Thread: , PMP20873 Tool/software: 1. May I ask if there are any relevant documents about the code that I can learn?
2.In the code, is there an implementation of the documented content? How to reduce current…
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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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…