Comments (4)
RobertGawron
commented on July 26, 2024
Removing C39 doesn't solve the problem.
Around 200mA is needed on startup, when current limit is set to 100mA, converter doesn't work.
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RobertGawron
commented on July 26, 2024
Removing C41, C43 doesn't help either.
What's interesting removing C2 makes issue permanent.
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RobertGawron
commented on July 26, 2024
After discussion with a colleague, it seems that current design might be completely wrong, pin1 should be an output and pin1 should be grounded.
Maybe. I don't know.
This is a time consuming case to verify because all components are SMD. I will leave it as it is and make place to configure it on further version of PCB. Especially because I don't know if this DC/DC converter will fit at all due to it's potential electro-magnetic pollution.
Reference: https://www.onsemi.com/pub/Collateral/MC34063A-D.PDF
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RobertGawron
commented on July 26, 2024
DC/DC converter won't be used.
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Related Issues (20)
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