TIDA-00519

65W High-efficiency CoC-5 tier2/DOE Level VI AC Adapter

TIDA-00519

Design files

Overview

This is a high efficiency 65W AC/DC design for a Universal input (85Vac to 265Vac) to 19.5V @3.33A output exceeding CoC-5 Tier2 and DOE Level VI requirements for external power supplies using the LM5023 Quasi-Resontant Flyback Controller with UCC24630 Synchronous Rectification Controller and CSD19531Q5A MOSFET.  Additionally the LM8364 reset controller is used to provide input line AC UVLO protection.

As seen at APEC

Features
  • 91.49% @115V, 89.81% @230V 4-point average efficiency
  • 83.14% @120V, 82.24% @230V 10% load efficiency 
  • 59mW No-load Power consumption 59mW at high line (230V) 
  • Fast turn-on time
  • 75mV output ripple
  • AC line input UVLO protection

A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDRD65.PDF (927 K)

Detailed schematic diagram for design layout and components

TIDRD66.PDF (134 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDC942.ZIP (232 K)

Design file that contains information on physical board layer of design PCB

Products

Includes TI products in the design and potential alternatives.

Flyback controllers

LM5023AC-DC quasi-Resonant current mode PWM controller

Data sheet document-pdfAcrobat PDF open-in-new HTML
N-channel MOSFETs

CSD19531Q5A100-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 6.4 mOhm

Data sheet document-pdfAcrobat PDF open-in-new HTML
SR & load share controllers

UCC24630Synchronous rectifier controller With Ultra Low Standby current

Data sheet document-pdfAcrobat PDF open-in-new HTML
Supervisor & reset ICs

LM8364Active-low voltage monitor with low quiescent current & 2.5% threshold accuracy

Data sheet document-pdfAcrobat PDF

Technical documentation

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Type Title Date
User guide Using the UCC24630EVM-636 65-W AC-to-DC Adapter (Rev. B) Dec. 12, 2016

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