RDK-420

Title R eference Design R eport for a 10 W CV/ CC USB Charger using I nnoSw itch TM -CH I N N2023K Specification 85 VAC – 264 VAC Input; 5 V, 2 A Output (end of USB Cable) Application Cell Phone / USB Charger Author Applications Engineering Department Document Number RDR-420 Date April 20, 2015 Revision 1.1 Summary and Features • InnoSwitch-CH - Industry first AC/DC ICs with isolated, safety rated integrated feedback • All the benefits of secondary side control with the simplicity of primary side regulation • ±3% CV, ±5% CC regulation • Insensitive to transformer variation • Transient response independent of load timing • Smaller, lower cost output capacitors •