The STR-Z2752 is a quasi-resonant flyback converter IC manufactured by Sanken Electric. It's designed for use in offline power supplies, offering high efficiency and low noise operation. This integrated circuit incorporates a MOSFET and control circuitry within a single package, simplifying power supply design and reducing component count.

Applications:

• Power supplies for LCD TVs
• Power supplies for LED lighting
• Adapters for various electronic devices
• Auxiliary power supplies in industrial equipment
• Standby power supplies

Features:

• Quasi-Resonant Control: Achieves high efficiency and low EMI noise by operating in quasi-resonant mode.
• Integrated MOSFET: Simplifies design and reduces component count with a built-in power MOSFET.
• Brown-In/Out Function: Prevents malfunction due to input voltage fluctuations.
• Overcurrent Protection (OCP): Protects the IC and power supply from overcurrent conditions.
• Overvoltage Protection (OVP): Protects the IC and power supply from overvoltage conditions.
• Thermal Shutdown (TSD): Protects the IC from overheating.
• Soft-Start Function: Reduces stress on components during startup.
• Low Startup Current: Minimizes power consumption during startup.
• Frequency Foldback Function: Improves efficiency at light load conditions.

Benefits:

• High Efficiency: Quasi-resonant operation minimizes switching losses, resulting in high efficiency.
• Low EMI Noise: Quasi-resonant operation reduces electromagnetic interference, simplifying compliance with EMI regulations.
• Simplified Design: Integrated MOSFET and control circuitry simplify power supply design.
• Reduced Component Count: Integration reduces the number of external components required, saving cost and board space.
• Improved Reliability: Built-in protection features enhance reliability.
• Robust Performance: Designed to operate reliably under various operating conditions.

Additional Details:

The STR-Z2752 typically operates with a wide input voltage range. It’s designed to meet various safety standards and regulatory requirements. Refer to the manufacturer's datasheet for detailed electrical characteristics, application examples, and safety guidelines. The specific MOSFET voltage and current ratings, switching frequency, and package type are detailed in the datasheet.