Hi,
I am using HVLED007 in my 80V, 45W SMPS (Input voltage range 160V-300V). Is it possible for the IC to operate in primary side regulation mode instead of the conventional opto-coupler-based secondary side control? Unlike other ICs, I cannot see an internal E/A or its characteristics mentioned in the IC datasheet.
However, from the datasheet of the HVLED007, I found the following paragraph: "The IC is provided with a control input intended for being driven by the phototransistor of an optocoupler to close a secondary-regulated isolated control loop. However, with the addition of a simple external circuitry, it can be used to close a primary-regulated voltage loop as well."
Is there any reference document that can clarify whether the HVLED007 can be used in PSR? If so, what modifications or external circuitry are needed?
Thanks!
