LNK3696 - Second Output is not coming
Posted by: VijilJose
on
I am getting a strange Behavior on LNK3696. I have attached Schematics for reference. I designed circuit for Maximum power 9W, but actually using 2 or 3 Watts power. Circuit using LNK3696 and have three output voltages. 3V3, 5V, 24V. (5V only isolated) , all other non isolated. Feedback is getting from 3.3V.
3V3 is working for me and giving required current. Whenever I connect a small capacitor or a load to 24V, It will go to sleep mode. (But strangely it will work below 160V well (During power On and OFF, for seconds)
I have removed R61, R69 which is causing shut down the device.
Looking for a resolution
~Vijil Jose
Files
Attachment | Size |
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Circuit.pdf | 58.73 KB |
Hi,
Do you have waveforms of the "sleep mode" ? And if you could include an image for the layout? Thanks.
Regards,