The STR-F6267 belongs to Sanken’s legacy family of SMPS primary controllers. It is engineered primarily for quasi-resonant or hard-switching flyback converters, operating directly from rectified AC mains voltage.
Automatically deactivates the switching mechanism if the internal junction temperature exceeds approximately 150°C. 4. Typical Application Circuit Operation
While specific pinouts vary slightly by datasheet version, typical 5-pin configurations for this family (like the STR-F series ) generally include: Connection to the transformer primary. Common (GND): Reference ground. Vcc: Power supply for the control IC.
is a specific integrated circuit (IC) used in Switched-Mode Power Supplies (SMPS), primarily manufactured by Sanken Electric str f6267 datasheet pdf upd
The STR-F6267 is widely used in a variety of consumer and industrial electronics:
The IC senses the bottom of the resonance cycle on the drain pin, turning on the MOSFET to minimize switching losses.
Includes a built-in power MOSFET and a current-mode PWM controller. Protection Circuits: The STR-F6267 belongs to Sanken’s legacy family of
Accessing the official datasheet is critical to confirm parameters like pinout and component values. However, the following table summarizes the standard function of each pin on the SIP-5 package, based on common design practices for this series.
The provides a standard application circuit for a 40W to 60W power supply. Key components include:
: Drain / Startup terminal (MOSFET drain and input for start-up signal). Typical Applications Vcc: Power supply for the control IC
Reliability in offline power supplies is paramount, and the STR-F6267 integrates several key protection mechanisms to ensure system safety.
: Power supplies for CRT and LCD TVs, and home appliances. Adapters & Chargers : AC/DC adapters and battery chargers. Lighting : High-efficiency LED drivers.
Based on standard datasheet documentation, the typical pinout for this series includes: : Drain/Startup terminal for the MOSFET. : Source/Overcurrent Protection terminal. : Power supply input for the control circuit. : Ground terminal. : Feedback terminal for constant voltage control. Primary Applications Consumer Electronics
The STR-F6267 is a hybrid integrated circuit (IC) commonly used in switching power supplies, particularly in flyback converter topologies for applications like CRT televisions, monitors, and industrial power modules. For engineers, technicians, and hobbyists, obtaining the official datasheet in PDF format is essential for understanding the device’s electrical characteristics, pin configuration, and application circuit. This essay outlines the steps to find the STR-F6267 datasheet and explains the key information typically contained within it.