High Temperature design

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Trying to design 100W / 48V output with universal AC input to work over industrial (-40 to 75C) temperature range in as small a footprint as possible with convection cooling only.
Cant seem to get PI Expert to converge on a solution. It recommended TOPSwitch-JX family.
Are there any high temp reference designs available for review ?


Thank you for considering Power Integrations for your solution.
TOPSwitch-JX would indeed be the best fit for your specification of 100W/48V output.

We presently do not have reference designs for these specifications with convection cooling only.
The reference design that would come closest would be DER 580; 118W, 59V output which works upto 65C ambient. This solution uses a heat-sink and thermal foldback.


Hope this helps.

Best Regards,