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200 W power supply based on STNRG011 digital combo for LED TV

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Parameter NameParameter Value
Operating RangeIndustrial
Target ApplicationDigital Power
Core ProductSTNRG011
Input Voltage Min Volt90.0
Input Voltage Max Volt264.0
ECCN US3A991.a.2
Packing TypeNot Applicable
RoHs compliantEcopack2
Package NameCARD

The STEVAL-NRG011TV is a 200 W LED TV SMPS providing 12 V regulated output voltage (for MCU supply and audio system applications) and 65 V output voltage for LED back lighting.

The design is based on the STNRG011 IC digital combo controller that controls a two-stage AC/DC SMPS.

The front-end is a transition mode PFC pre-regulator and the second stage is an LLC HB resonant converter.

Thanks to the STNRG011 IC, the user can take full advantage of digital implementation without the need of writing code.

A complete set of parameters, stored in the controller non-volatile memory (NVM), allows the configuration and fine tuning of the application.

Key features
  • STNRG011 digital controller:
    • TM PFC with resonant HB-LLC converter
  • Input voltage range: 90 – 264 VAC
  • 12 V/4 A, 65 V/2.3 A output voltage
  • Full load power: 200 W continuous operation
  • Full load efficiency greater than 91% at 115 and 230 VAC
  • No load mains consumption: less than 120 mW
  • Full set of programmable parameters
  • High flexibility thanks to the configurable NVM
  • Black box functionality with the embedded EEPROM