Str F6267 Datasheet Pdf Upd Jun 2026

For detailed technical diagrams and exact electrical ratings, you can find the STR-F6267 datasheet PDF through specialized component distributors like Veswin Electronics AllDatasheet or a typical application circuit diagram for this IC?

| Pin Number | Pin Name | Description / Key Function | | :--- | :--- | :--- | | | GND / S / Source | The ground reference pin for both the control circuit and the power section. It is the source connection of the internal power MOSFET. | | 2 | Vcc | The power supply pin for the IC's internal control circuit. It is connected to an external startup resistor and an auxiliary winding of the transformer. | | 3 | FB / OCP / Feedback | A multi-function pin. It receives the feedback signal from the secondary side (via an optocoupler) to regulate the output voltage. It also serves as the overcurrent protection (OCP) sense input. | | 4 | CS / Current Sense | The current sense pin. It monitors the current flowing through the internal power MOSFET by sensing the voltage across an external sense resistor. | | 5 | Drain | The drain pin of the internal high-voltage power MOSFET. This pin is connected to the primary winding of the switching transformer. |

Usually via an optocoupler (e.g., PC817) and a shunt regulator (e.g., TL431) to maintain constant output voltage.

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. str f6267 datasheet pdf upd

: A higher power rating variant from the same family.

The internal PWM controller oscillates at a fixed frequency modified by a frequency jittering algorithm. This jittering slightly modulates the switching clock, spreading the radio frequency energy across a wider bandwidth to simplify compliance with global EMI standards. Regulation Loop

: Capable of up to 95% efficiency with low EMI noise. | | 2 | Vcc | The power

Once the datasheet is obtained, a typical STR-F6267 datasheet contains several critical sections. The first is the , which identifies each pin’s function—such as drain, source, VCC, feedback (FB), and startup. The absolute maximum ratings table lists the limits for voltage, current, power dissipation, and junction temperature; exceeding these can permanently destroy the IC. The electrical characteristics provide typical and maximum values for parameters like operating voltage, oscillation frequency, overcurrent protection thresholds, and thermal shutdown behavior. These figures are vital for designing or troubleshooting the power supply.

It is a hybrid IC that integrates a power MOSFET switch along with a PWM (Pulse Width Modulation) control circuit into a single package. This "all-in-one" approach simplifies power supply design by greatly reducing the number of external components needed.

Finding exact replacements for older power ICs can be difficult. If the STR-F6267 is out of stock or hard to find, technical databases list several pin-compatible alternatives and series relatives: It receives the feedback signal from the secondary

The information in this article is compiled from public sources, supplier websites, and repair forums. While every effort has been made for accuracy, this information should be independently verified with the official manufacturer's datasheet and application notes.

The STR-F6267 is typically deployed in a flyback converter configuration, which is the standard design for low-to-medium power offline power supplies.

: Features integrated thermal shutdown, overcurrent protection (OCP), and overvoltage protection (OVP).