UCC39002: Oscillation

李品賢

Part Number: UCC39002

According to my Schematic,The UCC39002 made my main output oscillation when i operate PSU in any load condition.

Please help me checking my circuit and element value .

0 Colin Gillmor over 7 years ago

Hello Frank

Please double check that your GND and S_VSS nodes are at the same voltage.

Have you followed the design instructions in the MathCad calculator on the product page

I don't know what the various traces are in the screen shots - please clarify.

Have you tried the UCC29002-1 device. This has a slower start up function and is less likely to drive your system into current limit at start up.

How many modules are you trying to parallel.

Regards

Colin

0 Colin Gillmor over 7 years ago in reply to Colin Gillmor

Hello Frank

Do you have an update on this issue - if not then I'll close the thread

Thanks
Colin

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