The STR-F6267 is part of Sanken’s STR-F6200 series. It is a hybrid IC that integrates a power MOSFET and a control IC into a single 5-pin TO-220F package (full-mold type). This integration simplifies external circuitry, reduces component count, and improves reliability.
To successfully use or repair a circuit based on the STR-F6267:
By following this guide, you ensure that your search for "str f6267 datasheet pdf upd" yields not just any file, but the precise, up-to-date engineering resource required for reliable power supply design and repair.
Avoid fake or scanned copies from generic websites. Use these official sources: str f6267 datasheet pdf upd
Semiconductor Archive Sites (Use with caution):
Sites like Datasheet4U, Alldatasheet, or PDF-Home may have older revisions. If you use them, cross-check the document number (e.g., DS-F6267-300) with Sanken’s current revision.
Below are key parameters you will find in the STR F6267 datasheet PDF. Note: Always refer to the latest official document for exact values.
| Parameter | Symbol | Rating | Unit | Condition | |-----------|--------|--------|------|------------| | Drain-Source Voltage | V(DSS) | 650 | V | Tj = 25°C | | Drain Current (Pulsed) | IDP | 10 | A | Limited by power dissipation | | Supply Voltage (VCC) | VCC | 35 | V | Operating range: 15V to 32V | | Operating Frequency | fosc | 19 – 60 | kHz | Quasi-resonant, load dependent | | OCP Threshold | Vocp | 0.62 – 0.78 | V | Typical: 0.70V | | Rds(on) (MOSFET) | RDS(on) | 1.9 | Ω | Max @ Tj=125°C | | Standby Power | Psb | <0.3 | W | At no load, 230VAC | The STR-F6267 is part of Sanken’s STR-F6200 series
In very specific contexts, some power supply controllers use OTP (one-time programmable) memory. However, the STR-F6267 is a hardware-based controller, not a microcontroller. So, "UPD" here almost always means "Updated Datasheet" or "Revision Update."
In the world of switch-mode power supplies (SMPS), few components are as reliable and widely used as the STR-F6267. Developed by Sanken Electric Co., Ltd., this off-line quasi-resonant flyback switching regulator IC is a cornerstone in high-efficiency power systems, commonly found in LCD TVs, DVD players, printers, and industrial power supplies.
For engineers performing circuit troubleshooting, repair, or new design integration, accessing the official STR F6267 datasheet PDF and tracking the latest UPD (Update) information is critical. This article provides a deep dive into the STR-F6267, its technical specifications, application circuits, and, most importantly, how to secure the most recent version of the datasheet and product updates. By following this guide, you ensure that your
If your power supply using STR-F6267 is dead or cycling, the datasheet’s protection section helps diagnose:
| Symptom | Likely Cause | Datasheet Check Point | Solution | |---------|--------------|------------------------|-----------| | VCC cycles between 8V and 15V | Startup circuit fails or OLP (Overload) triggered | Check UVLO on/off thresholds (typically 15V on, 8.5V off) | Replace startup resistor or check secondary short | | No output, drain pin shows 320V but IC not switching | VCC pin voltage <15V | Measure VCC pin voltage during operation | Auxiliary winding may be open | | IC heats up rapidly | Overcurrent or MOSFET Rds(on) degradation | Check OCP threshold voltage (0.7V typical) | Replace current sense resistor (0.47Ω) | | Random shutdown under load | Thermal shutdown (TSD) activated | TSD temperature >140°C (from datasheet) | Improve heatsinking or reduce ambient temperature |