This document describes the characteristics and features of a 185 W, wide input mains range, power-factor-corrected, demonstration board for LED TV
The document details the characteristics and features of an EVL185W-LEDTV demonstration board. The architecture employs a three-stage approach: a front-end PFC pre-regulator based on the L6564, a downstream LLC resonant half bridge converter using the L6599A delivering 12 V, 24 V, and 130 V outputs, and a flyback-based standby supply controlled by the Viper27LN.
| Input mains range | 90 + 264 Vac - frequency 45 + 65 Hz |
|---|---|
| Output voltage 1 (Backlight) | 130 V +8 % at 620 mA |
| Output voltage 2 (Audio) | 24 V +8 % at 2 A |
| Output voltage 3 (Panel) | 12 V +1 % at 4 A |
| Output voltage 4 (Microprocessor) | 5 V +2 % at 2 A |
| Standby mains consumption | <170 mW at 230 Vac with 50 mW load |
| Overall efficiency | >90 % at full load |
It describes a 185 W, wide input mains range, power-factor-corrected demonstration board for LED TV.
The design uses the L6564 PFC controller, L6599A resonant controller, and Viper27LN.
The standby mains consumption is less than 170 mW at 230 Vac with a 50 mW load.