Str F6267 Datasheet Pdf Fixed (2027)

Frequently found in the power supply stage of CRT and modern display units.

High-performance switching regulator for flyback power supplies str f6267 datasheet pdf

| Symptom | Likely Cause | Test Point | | :--- | :--- | :--- | | No output, VCC cycling 0V→15V→0V | Short on secondary or overload on FB pin | Check diodes, caps on output | | No output, VCC stuck <15V | Start-up resistor open or VCC cap dried out | Replace 100µF/50V cap | | Blows fuse, D-S shorted | Primary snubber failed or AC line surge | Check RCD snubber diode (FR107) | | Output present but ticking noise | Overload or faulty optocoupler | Isolate FB pin, check load | | Output high (overvoltage) | Feedback loop open (optocoupler or TL431 dead) | Immediate danger – will trigger OVP latch | Frequently found in the power supply stage of

: Combines a power MOSFET and a current-mode PWM controller within a single package. Key Features High Efficiency : Capable of achieving efficiency up to 95%. VCC stuck &lt