LCD TVs

Power Integrations provides AC-DC converter ICs and power factor correction devices optimized for tiny personal TVs to the largest and most advanced 4K sets. Characterized by the highest level of integration available, small PCB footprint and low headroom requirements, PI’s products are selected by designers for challenging thin profile TVs, high-reliability professional signage and display units and for highly cost-competitive variants with integrated power/scalar motherboards.


Figure 1: PI Circuit Elements for an LED-Backlit LCD-TV Power Architecture (see RDK-189 and DER-112)

Design Examples

Document DescriptionDesign
Ideas
Design
Example
Reports
Engineering
Prototype
Reports
Reference
Design
Kits
125 W dual output LLC stage design for 50" TV      
<5 mW No-Load Input Power, 8 W Standby Power Supply      
100 W, Low Profile (11 mm), Flyback DC-DC Converter      
125 W LLC DC-DC Resonant Converter      
100 W, Low Profile (11 mm), LLC DC-DC Converter      
High Performance, Low Profile 900 W PFC Front End   DER-274    
High Performance, Low Profile 100 W PFC Front End   DER-272    
Low-Power, Low-Cost 180 W PFC Front End     RDR-248 RDK-248
14.5 W Standby and 300 W Main Power Supply     RDR-249 RDK-249
High Performance 347 W PFC Frontend     RDR-236 RDK-236
LCD Main Power Supply     download RDK-189
LCD TV Standby Power Supply with No-load Power Consumption of Less Than 25 mW   download    
LED backlight constant current drivers, 20/30W DC-DC Boost converter using DPA-Switch   download    
Standby power supply using TOPSwitch-JX   download    

Recommended Product Families

IC Product
Family
Design GuidesTypical Circuit
Configuration
Power/Current
Ratings
Description
LinkZero™-LP NA Flyback 3 W Zero No-Load Consumption Integrated Off-Line Switcher
HiperLCS™ Product family application note. LLC Half-bridge Up to 440 W Integrated LLC power stage incorporating a multi-function controller, high-side and low-side gate drivers, plus two power MOSFETs in a half-bridge configuration
HiperTFS™-2 NA Two-Switch Forward & Flyback Up to 586 W Combined Two-Switch Forward and Flyback Power Supply Controllers with Integrated High Voltage MOSFETs
HiperPFS™-2 NA Boost PFC 110 to 425 W High Power PFC Controller with Integrated High-Voltage MOSFET
HiperPFS™-3 NA Boost PFC 110 to 1000 W High Power PFC Controller with Integrated High-Voltage MOSFET
SENZero™ NA AC Power Supply NA Simple-to-use device that eliminates significant standby losses by disconnecting unused circuit paths during power-saving modes
CAPZero™ Product family application note. AC Power Supply NA Easy to use device for reducing standby mode power by eliminating power losses from X capacitor discharge resistors
HiperPLC Product family application note. PFC+LLC Half Bridge 150W to 400W Combination of continuous Conduction Mode PFC controller with high efficiency LLC half bridge Controller and driver
TOPSwitch™-JX Product family application note. Flyback 12 W to 177 W Integrated Off-Line Switcher with EcoSmart™ Technology for Highly Efficient Power Supplies
TinySwitch™-III NA Flyback 6 W to 36.5 W Highly energy efficient offline switcher IC utilizing on-off control for high efficiency at all load conditions. No-load consumption less than 50 mW. Ideal for TV standby supply.

Related Design Support Documents

General Design Information
Product Datasheets
Active Power Factor Correction – Basics
High Power Selector Guide
AC-DC Selector Guide
Package Information

 

Contact your local Power Integrations Sales Representative or Distributor for assistance.