Author Topic: Offline Flyback (24V,15W) with INN2904K.....sync. rectifier connection?  (Read 651 times)

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Offline ocsetTopic starter

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Hello,
We are using the INN2904K controller to make a 15W, 25V Offline 240VAC Flyback.
We are not using the synchronous rectifier facility in the secondary side. As such, will it be allright for us to simply ground the FORWARD pin?  :-//

The Forward pin is only rated  up to 150V and  with our turns ratio, the reflected voltage (+leakage spike ring) would result in the FORWARD pin getting overvoltaged if we connect it up to the switching node of the secondary side.

INN2904K datasheet:
https://ac-dc.power.com/sites/default/files/product-docs/innoswitch-ep_family_datasheet.pdf
 


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