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Texas Instruments UCC28780 | Demoboard UCC28780EVM-021

Using the UCC28780EVM-021, 45-W, 20-V High-Density Silicon (Si) Based, Active-Clamp Flyback Converter/Evaluation Module

Details

TopologieSperrwandler
Eingangsspannung90-264 V
Schaltfrequenz1000 kHz
Ausgang 120 V / 2.25 A

Beschreibung

The UCC28780EVM-021 is a 45-W evaluation module (EVM) for evaluating an off-line active-clamp flyback adapter for notebook charging and other applications. The EVM meets CoC Tier 2 and DoE Level 6 efficiency requirements. It is intended for evaluation purposes and is not intended to be an end product. The UCC28780EVM-021 converts input voltage of 90-VRMS to 264-VRMS down to 20-VDC, with a 2.25-A nominal output current rating and a 160-ms limit for over-power capability. The main devices used in this design are active clamp flyback controller UCC28780, SR controller UCC24612, and Si MOSFETs.

Eigenschaften

  • 45-W, 20-V AC-to-DC converter using active-clamp flyback controller, Si MOSFET Power IC, and synchronous rectification
  • High Efficiency (> 94%), High Power Density (> 20W/in3), Low Standby Power (40.1mW), and High Full Load Switching Frequency (291kHz)
  • Exceeds EU Code of Conduct and US Department of Energy efficiency requirements
  • Adaptive Burst Mode feature maintains high efficiency even at light loads
  • This evaluation module is tested and orderable and includes a User's Guide

Typische Anwendungen

  • High-Density AC-to-DC Adapters for Notebook, Tablet, TV, Set-Top Box and Printer
  • USB Power Delivery, Direct and Fast Mobile Chargers
  • USB Power Delivery, Direct and Fast Mobile Chargers

Weiterführende Informationen

Artikeldaten

Artikel Nr. Daten­blatt Simu­lation Downloads Status ProduktserieAnwendungCVR
(V (AC))
SicherheitsklassedV/dt
(V/µs)
DF @ 1 kHz
(%)
RISOBetriebstemperaturRaster
(mm)
L
(mm)
W
(mm)
H
(mm)
VerpackungTol. CBauformBetriebstemperaturQKeramiktypFl
(mm)
L
(µH)
IR
(A)
ISAT
(A)
RDC max.
(Ω)
fres
(MHz)
Version Muster
890324022017CSSPEC
8 Dateien Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.WCAP-FTX2 Folienkondensatoren Across the mains68 nF 275 X2 400 0.130 GΩ -40 °C bis zu +105 °C 7.5 10 6 12 Karton ±10% Pitch 7.5 mm -40 °C up to +105 °C
7447462010SPEC
8 Dateien Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.WE-TI Tonneninduktivität 6 6 8.5 5075 -40 °C up to +125 °C 1 8.5 8 0.015 140 Schrumpfschlauch
7447462220SPEC
8 Dateien Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.WE-TI Tonneninduktivität 6 6 8.5 5075 -40 °C up to +125 °C 22 1.8 0.13 15 Schrumpfschlauch
885012005055SPEC
8 Dateien Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.WCAP-CSGP MLCCs 50 V(DC)10 pF 5010 GΩ 1 0.5 0.5 7" Tape & Reel ±5% 0402 -55 °C up to +125 °C 600 NP0 Klasse I 0.25
Muster
Artikel Nr. Daten­blatt Simu­lation Downloads Status ProduktserieAnwendungCVR
(V (AC))
SicherheitsklassedV/dt
(V/µs)
DF @ 1 kHz
(%)
RISOBetriebstemperaturRaster
(mm)
L
(mm)
W
(mm)
H
(mm)
VerpackungTol. CBauformBetriebstemperaturQKeramiktypFl
(mm)
L
(µH)
IR
(A)
ISAT
(A)
RDC max.
(Ω)
fres
(MHz)
Version Muster