The STRG9656 is a power IC manufactured by Sanken Electric. It is designed for use in power factor correction (PFC) circuits for AC/DC power supplies. It integrates a control circuit and a power MOSFET to simplify the design of high-efficiency power supplies.

Applications:

• Power supplies for LCD TVs and monitors
• Power supplies for LED lighting systems
• Industrial power supplies
• AC adapters for various electronic devices
• Equipment requiring power factor correction to meet regulatory standards

Features:

• Integrated Power Factor Correction (PFC) control circuit
• Built-in power MOSFET
• Overcurrent Protection (OCP)
• Overvoltage Protection (OVP)
• Thermal Shutdown (TSD)
• Soft-start function

Benefits:

• Improves power factor, reducing harmonic distortion and increasing energy efficiency.
• Simplifies power supply design by integrating multiple functions into a single IC.
• Enhances system reliability with built-in protection features.
• Reduces inrush current during startup, minimizing stress on components.
• Helps meet regulatory requirements for power factor correction.

Additional Details:

The STRG9656 integrates a control scheme designed to achieve high power factor correction in AC/DC power supplies. The integrated MOSFET is optimized for high-voltage and high-speed switching. The built-in protection functions safeguard the device and the power supply from potential damage due to overcurrent, overvoltage, or excessive temperature. The soft-start function limits inrush current during startup, preventing stress on power supply components. This IC typically requires external components such as input capacitors, output capacitors, inductors, and resistors for the control circuit. Detailed specifications, including voltage and current ratings, switching frequency, and package dimensions, are available in the manufacturer's datasheet. Proper heat sinking may be required, depending on the application and operating conditions. The STRG9656 is a cost-effective solution for implementing power factor correction in a wide range of power supply applications.