The EVL185W-LEDTV is a high-end demonstration board tailored to the specifications of a typical LED TV application. The peculiarities of this design are the very high average efficiency of about 90%, without synchronous rectification, and very low no load consumption of 100 mW at 230 Vac. The result is that this converter is compliant to the most demanding ENERGY STAR® eligibility criteria. The architecture is made up of two sections, based on a three-stage approach: a 10 W standby supply using the new VIPer27L, which delivers the 5 V standby dedicated to supplying the microprocessor and the logic circuitry, and a bigger section composed of a front-end PFC, using the new TM L6564 and an LLC resonant converter, using the L6599A, delivering three output voltages: 12 V dedicated to supplying the TV panel, 24 V to supplying the audio power amplifiers, and 130 V dedicated to the backlight.
The PFC stage delivers 400 V constant voltage and acts as the pre-regulator for both the LLC stage and the standby supply.
An external signal, referred to secondary ground, turns the PFC and the LLC stage on and off.
|DB1268: 185 W power supply with PFC and standby supply for LED TV based on the L6564, L6599A and Viper27L||1.1||115 KB|
|BOM for EVL185W-LEDTV board||1.0||43 KB|
|Board schematics for EVL185W-LEDTV board||1.0||71 KB|
|Evaluation products license agreement||1.4||128 KB|
|型号||Core Product||Marketing Status||Unit Price (US$) *||Quantity||ECCN (EU)||ECCN (US)||Country of Origin||More info||Order from ST||Order from Distributors|
|EVL185W-LEDTV||L6564, L6599A, VIPER27L||Active : Product is in volume production||-||-||NEC||EAR99||-||MORE INFO||No availability reported, please contact our Sales office|
|型号||Marketing Status||Package||Grade||RoHS Compliance Grade||Material Declaration**|
(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.