IC-Hersteller Texas Instruments

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Texas Instruments UCC28781-Q1 | Demoboard PMP23195

19-W, AC/DC multioutput 5-V and 12-V ZVS flyback reference design for server applications

Details

TopologieSperrwandler
Eingangsspannung90-265 V
Schaltfrequenz183 kHz
Ausgang 112 V / 1.5 A
Ausgang 25 V / 0.2 A
IC-RevisionA

Beschreibung

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.

Eigenschaften

Peak efficiency of 92.7%ZVS on primary sideSynchronous rectification to minimize conduction loss on 12-V output

Typische Anwendungen

  • Single phase online UPS
  • Medical PSU
  • Industrial AC/DC
  • Single phase line interactive UPS

Weiterführende Informationen

Artikeldaten