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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 efficiencyCatalog, off-the-shelf transformer with 0.68-pF interwinding capacitanceSingle-sided assembly

Typische Anwendungen

  • Three phase UPS
  • Single phase online UPS

Weiterführende Informationen

Artikeldaten

Artikel Nr. Daten­blatt Downloads ProduktserieVin
(V)
VOut1
(V)
PO
(W)
CWW 1
(pF)
L
(µH)
∫Udt
(µVs)
fswitch
(kHz)
nVersionIC-Referenz Muster
750319177SPEC
7 Dateien WE-AGDT Auxiliary Gate Drive Transformer 7.5 13 4.55 0.68 16.5 36 500 1:1.67 LLC UCC25800
Artikel Nr. Daten­blatt
750319177SPEC
Muster
Artikel Nr. Daten­blatt Downloads ProduktserieVin
(V)
VOut1
(V)
PO
(W)
CWW 1
(pF)
L
(µH)
∫Udt
(µVs)
fswitch
(kHz)
nVersionIC-Referenz Muster