IC-Hersteller Texas Instruments

IC-Hersteller (103)

Texas Instruments UCC25800-Q1 | Demoboard PMP23240

3-W LLC bias supply with dual 18-V output reference design

Details

TopologieLLC Resonanzwandler
Eingangsspannung11.4-12.6 V
Ausgang 118 V / 0.09 A
IC-RevisionA

Beschreibung

This reference design uses a single UCC25800-Q1 to drive two LLC transformers with 600-kHz switching frequency. The transformer used in this design is 750319177 which is an off-the-shelf catalog transformer featuring low-interwinding capacitance of 0.68-pF typical which is beneficial for minimizing common-mode current in gate driver bias applications with high slew rates. This design generates two isolated 18-V rails. Each output can be loaded to 1.5 W.

Eigenschaften

  • 78.8% peak efficiency
  • Catalog, off-the-shelf transformer with 0.68-pF interwinding capacitance
  • Single-sided assembly

Typische Anwendungen

  • Single phase online UPS,Three phase UPS

Weiterführende Informationen

Artikeldaten

Artikel Nr.
Daten­blatt
Downloads
Status
Produktserie
Vin(V)
VOut1(V)
PO(W)
CWW 1(pF)
L(µH)
∫Udt(µVs)
fswitch(kHz)
n
Version
IC-Referenz
Muster
WE-AGDT Auxiliary Gate Drive Transformer, 7.5, 13 V
Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.
Input Voltage 7.5
Ausgangsspannung 113 V
Totale Ausgangsleistung4.55 W
Koppelkapazität0.68 pF
Induktivität16.5 µH
Spannung-µSekunde36 µVs
Switching Frequency 500
Übersetzungsverhältnis1:1.67 
VersionLLC 
IC-ReferenzUCC25800