Topology | Flyback Converter |
Input voltage | 90-265 V |
Switching frequency | 183 kHz |
Output 1 | 12 V / 1.5 A |
Output 2 | 5 V / 0.2 A |
IC revision | A |
This reference design converts a universal AC input to an isolated 12-V, 1.5-A output and an isolated 5-V, 0.2-A output. The design achieves a peak efficiency of 92.7%. This reference design features UCC28781-Q1 which is a zero-voltage switching (ZVS) flyback controller to minimize switching losses, UCC5350, a reinforced isolated gate driver to drive the synchronous rectifier MOSFET and TPS629203, a synchronous buck converter with low quiescent current.
Peak efficiency of 92.7%ZVS on primary sideSynchronous rectification to minimize conduction loss on 12-V output
Order Code | Datasheet | Downloads | Product series | L (µH) | IR (A) | RDC max. (Ω) | Samples | |
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7447052 | SPEC | 6 files | WE-FI Leaded Toroidal Line Choke | 32 | 2.6 | 0.045 |
Samples |
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Order Code | Datasheet | Downloads | Product series | L (µH) | IR (A) | RDC max. (Ω) | Samples |
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