IC-Hersteller Texas Instruments

IC-Hersteller (103)

Texas Instruments UCC28742 | Demoboard PMP40487

AC Input, 5-V/1-A and 5-V/1-A dual-output flyback

Details

TopologieSperrwandler
Eingangsspannung85-265 V
Ausgang 15 V / 1 A
Ausgang 25 V / 1 A
IC-RevisionE1

Beschreibung

This design is auxiliary power supply with 5-V/1-A and 5-V/1-A dual output. The line and load regulation of the power supply is designed to be within 1% using the secondary side regulator, UCC28742. The system's reliability is improved through input UVLO and output OVP, OCP, SCP. The four point's load (25%, 50%,75%, 100%) average efficiency is above 81%.

Eigenschaften

  • DCM valley-switching operation enable high efficiency at light load and better EMI performance
  • Up to 1% line and load regulation enable output voltage high accuracy requirement
  • Average efficiency above 81% simplifies the thermal design

Typische Anwendungen

  • Appliances: battery charger / Substation automation

Weiterführende Informationen

Artikeldaten

Artikel Nr.
Daten­blatt
Simu­lation
Downloads
Status
Produktserie
L(µH)
IR(A)
ISAT,10%(A)
RDC max.(Ω)
fres(MHz)
Version
Muster
WE-TI Tonneninduktivität, 470 µH, 0.35 A
Simu­lation
Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.
Induktivität470 µH
Nennstrom0.35 A
Sättigungsstrom 10.4 A
Gleichstromwiderstand2.4 Ω
Eigenresonanzfrequenz3.4 MHz
VersionSchrumpfschlauch