iW1818-EVAL: 5V @ 2A, 90 ~ 264V in, Isolated

The iW1818-EVAL evaluation board implements a 10W power supply based on Dialog Semiconductor’s iW1818 AccuSwitch™ digital off-line power supply controller IC. The evaluation board supplies a 5V, 2A regulated output voltage using a primary-side controlled quasi-resonant flyback converter that meets the U.S. Department of Energy’s most recent level VI efficiency standard and the EU’s Code of Conduct, Version 5, Tier 2 standard or both active mode and no-load standby power consumption.

The iW1818 controller integrates an 800V power BJT transistor to lower the power supply BOM cost and uses Dialog’s advanced PrimAccurate™ digital control technology to eliminate the need for external secondary-side feedback components, further reducing component count and cost, while improving reliability.

It operates in quasi-resonant mode to improve efficiency and help meet EMI standards. This quasi-resonant operation and Dialog’s EZ-EMI® technology enable excellent EMI performance with minimal external filtering. Proprietary control technology allows high efficiency across a broad range of loads, which enables the iW1818 to meet stringent international standards for power supply efficiency.