CamSemi C2161 and C2162 PSS flyback controllers are perfect for low cost feature phone charger applications up to 8 W.

They combine the company’s unique Primary Side Sensing technology with novel power-saving techniques to deliver:

• 4- or 5-star (<30 mW) no-load performance depending on requirement
• Energy Star 2.0 and European code of conduct v4 efficiency with a margin
• Very low common mode noise and output ripple to meet IEC 62684
• Quasi-resonant switching to improve efficiency and reduce EMI
• EMI compliance with minimal extra components
• +/- 5% CC/CV without board-level trimming
• Quick start-up of <0.3 seconds for faster, lower cost testing
• Programmable cable compensation ≤ 10% to minimise costs
• Programmable maximum switching frequency
• Supports USB-based universal charger approach

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