Can i use TOP248YN in place of TOP249YN in my power supply unit ? (siemens make,230 AC to 24V DC,5A)
Please help me on this matter.
Neither is recommended for new designs. For those, please consider later generation TOPSwitch families. In any case, including the legacy products, please refer to the Output Power table to judge what adjustments (e.g. current limit) may be needed to accommodate your power supply's requirements and then verify by testing.