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
Esta é uma boa pergunta?
What are these black rectangular SMD elements and what is the resistance of the resistors between them, thanks
Esta é uma boa pergunta?
Esta resposta foi útil?
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
Últimas 24 horas: 1
Últimos 7 dias: 5
Últimos 30 dias: 24
Ao todo: 141
1 comentário
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
por DanJ