The STRF6707 is a power IC manufactured by Sanken Electric, designed for use in switched-mode power supplies (SMPS). It is a quasi-resonant flyback converter integrating a power MOSFET and control circuitry, leading to simplified designs and reduced component count. The primary goal of this IC is to deliver high efficiency and low EMI in various power supply applications.

Applications

• Power supplies for LCD and LED televisions
• AC adapters for laptops and other portable electronic devices
• 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 fewer components
• Overcurrent Protection (OCP) to safeguard against excessive current
• Overvoltage Protection (OVP) to prevent damage from voltage spikes
• Thermal Shutdown (TSD) to protect against overheating
• Soft-start function to minimize stress during startup

Benefits

• Improved energy efficiency, leading to reduced power consumption and lower energy costs
• Simplified power supply design process, reducing development time and cost
• Enhanced system reliability due to integrated protection features that prevent damage from common electrical issues
• Reduced EMI noise, minimizing interference with other nearby electronic devices
• Smaller power supply footprint due to the high level of integration within the IC

Additional Details

The STRF6707 employs quasi-resonant switching technology to reduce switching losses and improve overall efficiency. The integrated MOSFET contributes to fast switching speeds and low on-resistance. The protection features, including OCP, OVP, and TSD, ensure the power supply operates reliably under various load and environmental conditions. The soft-start feature minimizes stress on components during startup, extending the lifespan of the power supply. This IC is designed for user-friendliness and cost-effectiveness in a wide range of power supply applications, typically utilizing a through-hole package for PCB mounting. The specific package and external component choices depend on application-specific requirements.