>92% Efficiency, 200W, <100mW standby, fast transient, desktop PC PSU reference design
TIDA-01557
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.

Description & Features

Technical Documents

Support & Training

Order Now


See the Important Notice and Disclaimer covering reference designs and other TI resources.

Key Document

Description

This reference design is a compact, high efficiency, fast transient, universal input, 12-V DC, 200-W nominal output, AC/DC power supply (PSU) targeted for desktop PCs and gaming adapters. The TIDA-01557 circuit consists of a front-end transition-mode (TrM) power factor correction (PFC) circuit based on the UCC28056, followed by an LLC stage for isolated DC/DC conversion based on UCC256301. For high efficiency needs, synchronous rectification is done using the UCC24612-2 synchronous rectifier controller and low RDS (on) MOSFETs CSD18511. This design does not need additional auxiliary power supply for meeting no-load and light-load specifications. The design can be used as an AC/DC power supply in applications that demand efficient power conversion and fast transient response.

Features
  • Peak overall efficiency of 92.5% at 230-V AC and 90.5% at 115-V AC, fan cooling needed up to 55°C ambient operation
  • High power factor > 0.96 at 230-V AC from 50% to 100% load meets PFC regulations and current THD as per IEC 61000-3-2 Class D
  • Very low no load power consumption of <125mW
  • Light load efficiency of >50% at 0.25W; > 79% at 2W; >81% at 4W
  • Single-Layer, CEM-1 material PCB design to achieve low cost; small PCB (70 x 125 x 35 mm) fits in both SFX12 and gaming adapter form-factor
  • Leading transient performance with half duty cycle response for line transient and dynamic load

See the Important Notice and Disclaimer covering reference designs and other TI resources.

Schematic/Block Diagram

Quickly understand overall system functionality.

Download Schematic

Design Guide

Get results faster with test and simulation data that's been verified.

Download Design Guide

Design Files

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

Download Design Files


TI Devices (5)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CSD18511Q5A  40V, N ch NexFET MOSFET™, single SON5x6, 2.3mOhm  MOSFETs  Sample & Buy Not Available
TLVH431A  1% accuracy low-voltage wide-operating current adjustable precision shunt regulator  Voltage references  Sample & Buy View Design Kits & Evaluation Modules
UCC24612  High-frequency multi-mode synchronous rectifier controller  Offline & isolated DC/DC controllers & converters  Sample & Buy View Design Kits & Evaluation Modules
UCC256301  Wide vin LLC resonant controller with high-voltage start up enabling ultra-low standby power  Offline & isolated DC/DC controllers & converters  Sample & Buy View Design Kits & Evaluation Modules
UCC28056  6-pin high performance CRM/DCM PFC controller  Offline & isolated DC/DC controllers & converters  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CSD18511Q5A VSONP (DQJ)| 8 Download Download
TLVH431A Download Download
Download Download
Download -
Download Download
Download Download
UCC24612 Download Download
UCC256301 Download Download
UCC28056 Download

Texas Instruments and Accelerated Designs, Inc. have collaborated together to provide TI customers with schematic symbols and PCB layout footprints for TI products.

Step 1: Download and install the free download.

Step 2: Download the Symbol and Footprint from the CAD.bxl file table.


Technical Documents

See the Important Notice and Disclaimer covering reference designs and other TI resources.

Datasheet (1)
Title Type Size (KB) Date
PDF 2394 23 Aug 2017
User guides (1)
Title Type Size (KB) Date
PDF 1007 02 Mar 2018
Design files (6)
Title Type Size (KB) Date
ZIP 736 05 Jan 2018
ZIP 2760 05 Jan 2018
PDF 669 05 Jan 2018
PDF 277 05 Jan 2018
PDF 112 05 Jan 2018
PDF 354 05 Jan 2018

Support & training

Search our extensive online knowledge base where millions of technical questions and answers are available 24/7.

Search answers from TI experts

Content is provided 'AS IS' by the respective TI and Community contributors and does not constitute TI specifications.
See terms of use.

If you have questions about quality, packaging, or ordering TI products visit our Support page.

Technical articles