LNK3209 feedback for low standby power
Hi,
Is the attached a good way to do feedback for LNK3209 when low standby power is wanted?.
Also want a fairly accurate 24V
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LNK3209 opto feedback.jpg | 117.48 KB |
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Hi treez,
Thank you for using PI Product.
As for your inquiry, it would be best to still include R5, C3, and D2 below as shown in the Applications Example from the datasheet. R5 supplies the BYPASS pin externally for significantly lower no-load input power and increased efficiency over all load conditions.
Also, you may remove R10 in your schematic, since your feedback divider R3 and R4 already acts as the pre-load.
Regards,
Hi herringbur,
Thanks for showing interest to PI Product.
You may refer to this Design Guide for the LinkSwitch-TN2 Family (https://www.power.com/design-support/application-notes/an-70-linkswitch-tn2-design-guide).
Also, you may checkout Design Examples for LNK3209D here that will suit your application (https://www.power.com/products/linkswitch/linkswitch-tn2/lnk3209d).
Regards,
All I want also 24V. What should I do?
https://www.powerint.cn/community/forum/ac-dc-conversion-forum/2023/lnk3209-feedback-low-standby-power doodle jump