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
Schaltfrequenz500 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 side
  • Synchronous rectification to minimize conduction loss on 12-V output

Typische Anwendungen

  • Medical PSU
  • Industrial AC/DC

Weiterführende Informationen

Artikeldaten

Artikel Nr. Daten­blatt Downloads Status ProduktserieL
(µH)
IR
(A)
RDC max.
(Ω)
Muster
7447052SPEC
6 Dateien Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.WE-FI Funkentstördrossel 32 2.6 0.045
Artikel Nr. Daten­blatt
7447052SPEC
Muster
Artikel Nr. Daten­blatt Downloads Status ProduktserieL
(µH)
IR
(A)
RDC max.
(Ω)
Muster