Str F6267 Datasheet Pdf • Tested & Working

: Low external component count needed to build a power supply.

Locating the pinout is the first step any engineer takes when opening an . The device uses a 5-pin TO-220F package.

combines a high-voltage power MOSFET and a controller chip into a single 5-pin isolated SIP package (TO-3P style). It is designed specifically for quasi-resonant flyback converters, which naturally yield higher efficiency and lower electromagnetic interference (EMI) compared to standard hard-switching PWM controllers. 🔑 Key Features

Overview

The contains a detailed block diagram showing:

| Pin | Name | Function | | :--- | :--- | :--- | | 1 | FB/OCP | Feedback input from optocoupler (current sense + control) | | 2 | S/OCP | Source of MOSFET / Current sense input | | 3 | D/ST | Drain of MOSFET (connected to transformer primary) | | 4 | VCC | Supply voltage (start-up and running). Typical: 18V. | | 5 | GND | Ground (reference for control circuit) | | 6 | NC | No connection (or used for heatsink in some variants) |

While common in older hardware, it is often treated as an "obsolete" or "hard-to-find" part by modern distributors, though it is still widely available from specialty suppliers like Jotrin Electronics or Veswin . ⚠️ Common Use Cases str f6267 datasheet pdf

: Formidable 5-pin TO-3P package requiring an external heatsink. 🛡️ Integrated Protections

The STR-F6267 is housed in a 5-pin TO-3P package. It minimizes external component counts, allowing for compact power supply designs. Absolute Maximum Ratings 650V Drain Current ( IDcap I sub cap D ): 12A (Peak) / 4.5A (Continuous) Avalanche Energy Capability ( EAScap E sub cap A cap S end-sub ): Single pulse capability for transient protection Supply Voltage ( VCCcap V sub cap C cap C end-sub ): 35V Overcurrent Protection Terminal Voltage ( VOCPcap V sub cap O cap C cap P end-sub ): -0.5V to +5V Operating Temperature ( TOPcap T sub cap O cap P end-sub ): -20°C to +125°C Storage Temperature ( TSTGcap T sub cap S cap T cap G end-sub ): -40°C to +125°C Electrical Characteristics

Often found in the power regulation stage of older Sony Trinitron models. AC-DC Adapters: Used for laptop and mobile device chargers. : Low external component count needed to build

The STR-F6267 is a versatile component widely used in a range of electronic power systems, particularly those requiring efficient and reliable AC-DC conversion in the 50W to 85W range. Its integration of a power MOSFET and PWM controller makes it especially suitable for:

Although the MOSFET is robust, an external RCD snubber across the primary winding is recommended to suppress high-voltage spikes caused by transformer leakage inductance. Common Fault Symptoms and Troubleshooting

A: No, unless you recalculate the primary current limit. The F6263 has a lower drain current rating (3.5A) and higher RDS(on). Always consult both datasheets. combines a high-voltage power MOSFET and a controller

| Parameter | Symbol | Min | Typ | Max | Unit | |-----------|--------|-----|-----|-----|------| | VCC Start-up Voltage | VCC(on) | 14.5 | 15.5 | 16.5 | V | | VCC Shutdown (Under-voltage lockout) | VCC(off) | 8.5 | 9.5 | 10.5 | V | | Operating Current (Normal) | ICC(ON) | - | 3.5 | 5.5 | mA | | Operating Current (Burst mode) | ICC(Burst) | - | 0.9 | - | mA | | Maximum Duty Cycle | Dmax | 70 | 75 | 80 | % | | Oscillation Frequency | fosc | 60 | 67 | 74 | kHz |

The STR-F6267 is a highly integrated PMIC that offers high-performance power management and low power consumption. The datasheet PDF provides a comprehensive overview of the IC's features, specifications, and application notes. While there are some limitations to the documentation, overall, the datasheet is well-organized, and the information is easy to find.