This document describes the characteristics and features of a 170W power supply using L6564, L6599A, and Viper27LN, suitable for flat TVs or industrial applications. This design achieves very high efficiency and is compliant with ENERGY STAR eligibility criteria.
The document details the characteristics of a 170 W, wide input mains range power supply designed for flat TVs. The architecture consists of three stages: a front-end PFC pre-regulator based on the L6564 controller, a downstream LLC resonant half-bridge converter built around the L6599A controller providing 12 V and 24 V outputs, and a flyback-based standby supply delivering 5 V.
The supply provides 24 V at 6 A, 12 V at 2 A, and 5 V at 2 A.
The unit accepts a universal input range of 90 to 264 Vac.
The standby consumption is less than 150 mW with a 50 mW load.