IC-Hersteller Texas Instruments

IC-Hersteller (99)

Texas Instruments UCC28780 | Demoboard UCC28780EVM-002

Using the UCC28780EVM-002 45-W 20-V High Density GaN Active-Clamp Flyback Converter

Details

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

Beschreibung

The UCC28780EVM-002 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-002 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 GaN MOSFETPower IC NV6117 and NV6115. Please read this user's guide thoroughly before applying power to this board.

Eigenschaften

  • 45-W, 20-V AC-to-DC converter using active-clamp flyback controller, GaN MOSFET Power IC, and synchronous rectification
  • High Efficiency (> 94%), High Power Density (> 20W/in3), Low Standby Power (55mW), and High Switching Frequency (300kHz)
  • 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

  • AC-to-DC or DC-to-DC Auxiliary Power Supply
  • High-Density AC-to-DC Adapters for Notebook, Tablet, TV, Set-Top Box and Printer
  • 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)
VerpackungL
(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
7447462010SPEC
8 Dateien Aktiv i| Produktion ist aktiv. Erwartete Lebenszeit: >10 Jahre.WE-TI Tonneninduktivität 6 6 8.5 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 22 1.8 0.13 15 Schrumpfschlauch
Artikel Nr. Daten­blatt Simu­lation
890324022017CSSPEC
7447462010SPEC
7447462220SPEC
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)
VerpackungL
(µH)
IR
(A)
ISAT
(A)
RDC max.
(Ω)
fres
(MHz)
Version Muster