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DER-998 - 12 W or 6 W selectable output voltage appliance power supply using LinkSwitch-XT2SR

DER-998 - 12 W or 6 W Selectable Output Voltage Appliance Power Supply Using LinkSwitch-XT2SR

Overview

12 W or 6 W non-isolated flyback power supply for devices using LinkSwitch-XT2SR (LNK3773D) Output voltage selectable from 6 V to 12 V, output current 1 A Input range: 90 - 265 VAC Minimal component count Synchronization Rectifier MOSFET driver and integrated 3.3 V LDO (uVCC) 90% efficiency at nominal AC input 6 V output No-load input power <5 mW at 230 VAC Standby input power at 6 V/30 mA load <190 mW Simple dual winding transformer

Blockdiagram

Design Files

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Update:2025-05-07 22:46:45

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