Str F6267 Datasheet Pdf Repack Jun 2026

The output voltage on the secondary side is monitored by a shunt regulator (like a TL431) and sent back across the isolation barrier via an optocoupler. This optocoupler dictates the current flowing into Pin 5 (FB) , adjusting the MOSFET's on-time to maintain a steady output voltage. 5. Equivalent and Replacement ICs

Protects against overcurrent conditions.

The STR-F6267 is a popular choice for designers needing a compact and reliable power solution for:

: No longer recommended for new designs; difficult to source genuine parts. str f6267 datasheet pdf

Measure the resistance between Pin 1 (Drain) and Pin 2 (Source). A low resistance reading (close to 0 Ohms) indicates that the internal power MOSFET has suffered a catastrophic short-circuit failure.

— Connects to the source of the internal power MOSFET. It acts as the feedback junction for current sensing via an external low-value resistor to detect overcurrent thresholds.

The IC integrates a high-voltage power MOSFET and a controller chip into a single (5-pin SIP) package. This integration reduces the total component count for power supply designs. High Efficiency: Capable of achieving up to 95% efficiency . The output voltage on the secondary side is

Based on information compiled from various sources and the official datasheet, the key technical specifications of the STR-F6267 are as follows:

After replacing the STR-F6267 and the damaged start-up components, the TV was restored to full working order. This example highlights the importance of checking the (including the start-up circuit and its components) when an IC like the STR-F6267 fails, as the damage is often not isolated to a single component.

: Provides multiple versions of the original Sanken technical manual. A low resistance reading (close to 0 Ohms)

The STR-F6267 datasheet outlines a multiple-pin configuration, usually in a 5 or 6-pin layout depending on the exact package suffix. MOSFET Drain (Connects to Transformer) Source MOSFET Source / GND VCC Power Supply for Control Circuit Feedback Feedback Input (for regulation) OCP/OLP Overcurrent/Overload Protection Sense

The STR-F6267 pinout is critical for correct integration. While specific pin roles can vary by application, they generally include: Connection to the transformer primary. Source: Ground or current sensing point. VCC: Power supply input for the control IC. Feedback (FB): Used for output voltage regulation.

AC-DC adapters for monitors, TVs, and audio equipment.