IW1818-EVAL

The IW1818-EVAL from Dialog Semiconductor is an evaluation board implements a 10W single-output switch-mode power supply based on 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. 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.

• Wide input voltage range from 90VAC to 264VAC
• Total output power maximum is 10W
• Active mode efficiency is 80%
• Supports high capacitance loads up to 6000µF
• Low no-load power <lt/> 50mW (at 230VAC)
• Quasi-resonant operation
• Output short-circuit, overcurrent, overvoltage
• Input voltage protection brown-out, brown-in, unplug
• Overtemperature protection
• Designed to meet UL1310, EN60335-1:2012 safety standard

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When the evaluation board is powered, never touch the board or its electrical circuits since they may be operating at high voltages that can cause an electrical shock hazard.