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Overview
| Topology | LLC Resonant Converter |
| Input voltage | 360-400 V |
| Output 1 | 12 V / 25 A |
| IC revision | 1.1 |
Description
TEA1916DB1262 digital resonant 240 W/12 V power supply demo boardThe TEA19161T is a digital LLC controller. It is used in combination with thePFC controller TEA19162T.Combining these two ICs with the SR controllerTEA1995T at the secondary side results in a high-efficient resonant converterover the whole output power range.This document describes such a resonant power supply design with a 240 W(12 V/20 A) typical output power.It operates in normal mode for high and medium power levels, in low-powermode at medium and low power levels, and in burst mode at (very) low powerlevels.Low-power mode and burst mode operation provide a reduction of powerlosses, resulting in a higher efficiency at lower output power levels. Powerlevels for switching over from one mode to another mode can be selected byadjusting component values.The efficiency at high power levels is well above 90 %.No-load power consumption is well below 100 mW.At 250 mW output power, the input power is well below the 500 mW (complieseasily with EUP lot6).