IC-Hersteller Texas Instruments

IC-Hersteller (103)

Texas Instruments UCC28911 | Demoboard PMP30026

Universal Input to 12V@1A PSR Isolated Flyback with Integrated 700V Switch Reference Design

Details

TopologieSperrwandler
Eingangsspannung90-265 V
Schaltfrequenz105-125 kHz
Ausgang 112 V / 1 A
IC-RevisionB

Beschreibung

A quasi-resonant primary-side regulated isolated Flyback is used to provide 12V @ 1A from universal input voltage (90Vac to 264Vac). The converter does not employ any optocoupler and regulates the output voltage by sensing the auxiliary winding on primary side. A peak input voltage detector is used to sense input AC voltage, delivering 1/100 AC RMS equivalent voltage, with a +/-5% precision.

Eigenschaften

Simple isolated PSR Flyback converter with integrated 700V FETCompact solution ("L" shaped PCB) supplies 12W with almost flat efficiency from 50mA to 1A load (75%...84%)Opto-less topology increases the reliability of the power supplyGood output voltage regulation versus load: +/-5% in the whole temperature range

Typische Anwendungen

  • Home and Building Automation
  • Smart plug, IoT, MCU and WiFi Power
  • Power Metering Bias
  • Aux power for TV, Server, White Goods
  • Thermostat
  • Bias Power for Smoke Alarm, Fire Alarm and
  • Wall Adapters, Chargers for Mobile Phones
  • LED Lighting

Weiterführende Informationen

Artikeldaten

Artikel Nr.
Daten­blatt
Simu­lation
Downloads
Status
Produktserie
ISAT,10%(A)
fres(MHz)
Version
IR(A)
L(µH)
RDC max.(Ω)
VR(V (AC))
VT(V (AC))
Material
L(mm)
B(mm)
H(mm)
Montageart
Muster
WE-TI Tonneninduktivität, 0.27 A, 2.3 MHz
Simu­lation
Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.
Sättigungsstrom 10.27 A
Eigenresonanzfrequenz2.3 MHz
VersionSchrumpfschlauch 
Nennstrom0.25 A
Induktivität1000 µH
Gleichstromwiderstand6 Ω
Länge6 mm
Breite6 mm
Höhe8.5 mm
MontageartTHT 
WE-CMB Stromkompensierte Netzdrossel, –, –
Simu­lation
Status Aktivi| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.
VersionTHT 
Nennstrom0.5 A
Induktivität20000 µH
Gleichstromwiderstand1 Ω
Nennspannung250 V (AC)
Prüfspannung1500 V (AC)
MaterialMnZn 
Länge15 mm
Breite7.8 mm
Höhe17.5 mm
MontageartTHT