Always use fresh thermal paste when mounting the IC to the heatsink.
: Includes a frequency jittering circuit that naturally lowers electromagnetic interference (EMI).
You can download the full technical documentation through the Alldatasheet STR-F6267 PDF Search platform or check real-time stock profiles via the Jotrin Electronics Database . Core Specifications & Parameters
If you are looking for a replacement (substitute), look for the STR-F6267 specifically. While other chips in the STR-F6260 series look similar, their internal MOSFET current ratings and timings may differ slightly.
The STR-F6267 typically features a 5-pin configuration. Understanding the role of each pin is crucial for troubleshooting and circuit design. Pin Number Description D (Drain)
Datasheets and components can be found through various distributors and platforms: Alldatasheet provides downloadable PDF datasheets.
Receives the error signal from the optocoupler to regulate the duty cycle. Overcurrent (OCP)
STR-F6267 Datasheet PDF: Updated Technical Guide and Application Insights
You can find the full technical details and pinout diagrams through the following resources:
| Pin Number | Pin Name | Function Description | | :--------- | :------------ | :------------------------------------------------------------------------------------------------------------------------------- | | | GND | Ground Pin. The reference point for all IC signals. Typically connected to the primary-side ground. | | 2 | VCC | Power Supply. Provides the operating voltage. After startup, it's typically supplied by an auxiliary winding. | | 3 | FB/OCP (FB) | Feedback/Over-Current Protection. A multifunction pin for voltage regulation from the secondary side and OCP. | | 4 | CS (DTC/DRAIN) | Current Sense or Drain Control. Often used for current detection or duty control. | | 5 | DRAIN | Power Switching Pin. Connected to the internal high-voltage MOSFET's drain and the primary winding of the transformer. |
: Integrated circuit for reducing EMI noise.
Features frequency jittering to reduce EMI noise and soft start to protect components during power-up. Protection Circuits: Cycle-by-cycle current limiting . Under-voltage lock-out (UVLO) with hysteresis. Over-voltage protection (OVP) . Thermal shutdown to prevent damage from overheating.
For voltage regulation and sync control.
Understanding the precise threshold limitations protects the system from catastrophic overvoltage or thermal breakdown during continuous operations. Specification Sanken STR-F Series Off-Line Quasi-Resonant Regulators Integrated Element High-Voltage Silicon Transistor/MOSFET Fast-switching configuration Package Type 5-Pin SIP / TO-3P Features a metal tab for external heatsinks Control Method Current-Mode PWM Minimizes voltage ripple under varying loads Max Operating Temp Up to 105°C High thermal resistance for continuous load Target Application Primary SMPS Control Found in JVC, Sony, and legacy consumer appliances Pinout Configuration & Internal Functions
operates as a quasi-resonant flyback switching regulator, which helps achieve high efficiency and low electromagnetic interference (EMI).
: Combines a high-voltage power MOSFET with advanced control circuitry.
Built-in frequency jittering to reduce Electromagnetic Interference (EMI), low startup current, and robust thermal stability up to 105°C. STR-F6267 Pinout Configuration & Functions
