What are these black rectangular SMD elements
What are these black rectangular SMD elements and what is the resistance of the resistors between them, thanks
좋은 질문입니까?
What are these black rectangular SMD elements and what is the resistance of the resistors between them, thanks
좋은 질문입니까?
이 답변이 도움이 되었나요?
That a better image than what I had found👍 I was looking for DA9081
So it's a Dialog DA9091 it looks like this chip might be the root issue as you can see in this dialog DA9091 on Raspberry Pi's site and here Renesas 9091 support. Here's a source for the chip DA9091 and it appears the chip can burn when subjected to the wrong voltage.
Still looking for the chip sheet and maybe a sample circuit.
The inductors you highlighted are the following spec
Inductor, SMT 0805, 470nH, IRMS=4A, ISAT=4.6A, DCR(max)=35mR
지난 24시간: 0
지난 7일: 16
지난 30일: 36
전체 시간: 160
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Sadly the schematics and the full board view drawings have not been released to be sure. Here's a useful site to help you a bit: raspberrypicase
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