The STRG9626 is a power IC manufactured by Sanken. It's designed for use in AC/DC power supplies, typically as a power factor correction (PFC) pre-regulator. This IC integrates a control circuit and a power MOSFET, simplifying power supply designs.

Applications:

• Power supplies for LCD TVs and monitors
• Power supplies for LED lighting
• Industrial power supplies
• AC adapters
• Power factor correction (PFC) pre-regulators

Features:

• Integrated power MOSFET
• Power factor correction (PFC) control
• Built-in protection functions: Overcurrent protection (OCP), Overvoltage protection (OVP), and Thermal shutdown (TSD)
• Soft-start function
• Low startup current

Benefits:

• Improved power factor, reducing harmonic distortion and improving energy efficiency.
• Simplified power supply design with integrated components.
• Enhanced system reliability through built-in protection features.
• Reduced inrush current during startup.
• Lower power consumption in standby mode.

Additional Details:

The STRG9626 employs a control scheme to achieve high power factor correction. The integrated MOSFET is designed for efficient switching. The built-in protection functions safeguard the device and the power supply from abnormal operating conditions. The soft-start function limits inrush current during startup, preventing stress on the power supply components. The IC typically requires external components such as input capacitors, output capacitors, inductors, and a few resistors and capacitors 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. It is often used in applications where regulatory compliance for power factor is required.