Power integrations provides power solutions for all LCD TV standby power supplies, and the main power supply for LCD LIPS applications. Reference designs are available for the standby and standby/auxiliary output power supplies for SUPERLIPS applications. PI also offers solutions for LCD TV LED backlighting.

Available solutions for different architectures are shown in figures 1-3 (below). A number of reference designs for LCD TV standby power supplies are also available.

Figure 1: PI Circuit Elements Supporting a LIPS LCD-TV Power Architecture (see RDK-189)

Figure 2: PI Circuit Elements Supporting a SUPERLIPS LCD-TV Power Architecture (see DER-204)

Figure 3: PI Circuit Elements for an LED-Backlit LCD-TV Power Architecture (see RDK-189 and DER-112)

Design Examples

Document Description Design
<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
SUPERLIPS LCD TV Auxiliary and Standby Supplies download download
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    
TOPSwitch-GX reference design for TV standby power supply, ideal for sleep mode, 80 V to 288 V wide input, 5V/300mA, 22 V/100mA (7W) download
Standby power supply using TOPSwitch-JX download

Recommended Product Families

IC Product
Design Guides Typical Circuit
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
HiperTFS™ Product family application note. Two-Switch Forward & Flyback Up to 435 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™ Product family application note. PFC Flyback Up to 1 kW 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
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
Active Power Factor Correction – Basics
High Power Selector Guide
AC-DC Selector Guide
Package Information

Related Links

Standby power requirements for TVs and monitors.

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