The STRF6654 is a quasi-resonant flyback converter IC manufactured by Sanken. It is designed for use in switched-mode power supplies (SMPS), offering improved efficiency and reduced noise. The device integrates a power MOSFET and control circuitry, simplifying design and minimizing the external component count.

Applications

• Power supplies for LCD and LED TVs
• AC adapters for laptops and other portable electronics
• Power supplies for set-top boxes
• DVD players and recorders

Features

• Quasi-resonant operation for high efficiency and low EMI
• Integrated power MOSFET for simplified design and reduced component count
• Overcurrent Protection (OCP)
• Overvoltage Protection (OVP)
• Thermal Shutdown Protection (TSD)
• Soft-start function

Benefits

• High energy efficiency reduces power consumption and heat generation.
• Simplified power supply design reduces development time and cost.
• Integrated protection features enhance system reliability and prevent damage from fault conditions.
• Low EMI minimizes interference with other electronic devices.
• Soft-start reduces stress on components during startup, increasing lifespan.

Additional Details

The STRF6654 employs quasi-resonant switching to minimize switching losses and achieve high efficiency. The integrated MOSFET simplifies design by reducing the number of external components. Comprehensive protection features ensure safe operation under various fault conditions, improving system reliability. The soft-start functionality limits inrush current during startup, further enhancing component lifespan. The device typically comes in a through-hole package.