Electronics > Beginners
questions on a schematic
JackJones:
Combine that with different thickness used for the traces it is definitely confusing. (though I like the idea of identifying high current traces like that) If there was a dot to mark a connection it would be much clearer.
They even used the exact replica of the pinout of the chip to make the schematic, rather than arranging it nicely to make it clear. Compare it with the example schematic at the top of the datasheet where everything is arranged neatly and is easy to read.
redgear:
Thank You everyone. I will post the schematic once I complete it. Would be great if you guys can review it.
soldar:
For schematics I like a blob of Sn solder if they are connected and a sort of "shadow" if they are not connected. I think this avoids confusion.
If it is not a crossing but just a T then there is no doubt they are connected.
redgear:
I'm attaching the schematic I created and the datasheet. Can someone please review it?
1) The IP5328P is a custom symbol created by me, when I connect a Label to the pins it creates a junction but no junction is created for single connection on pins in the USB ports(kicad default symbols). Did I make a mistake while creating the symbol?
2) I hope the Gate, Drain and Source pins of the MOSFETs are properly connected.
3) They have used a Electrolytic Cap for C15. Can I use the same? Will any SMD cap should be fine for others?
4) The pins VSYS,VSN and VSP are connected together. I have tried to follow the the diagram on top of the datasheet, have I done that correct?
redgear:
Do I really need a 220uF 25v capacitor on the C15? Many powerbanks using the IP5328P does not use any Electrolytic cap at all and the ones that use have them rated at 100uF 16V.
http://bbs.chongdiantou.com/data/attachment/forum/201909/29/095355uyh41te7nfpvyh1x.jpg
http://bbs.chongdiantou.com/data/attachment/forum/201811/08/180416m6kzrpcb8mp43i49.jpg
http://bbs.chongdiantou.com/data/attachment/forum/201910/15/141137n02444z4lvr97mk3.jpg
http://bbs.chongdiantou.com/data/attachment/forum/201901/09/220736y17r7c7c9ts7z3l3.jpg
This one uses a 220uF 16v capacitor:
http://bbs.chongdiantou.com/data/attachment/forum/201909/03/112541yz4auqu4ohzav494.jpg
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