Str F6267 Datasheet Pdf Updated Jun 2026

+---[ High Voltage DC Bus (+300V/400V) ] | [Transformer Primary Winding] | +-----------+ | [Pin 1: DRAIN] +------------+ | STR-F6267 | | | [Aux Winding]--[Diode]----+Pin 4: VCC | | | [Feedback Opto]-----------+Pin 5: FB | | | |Pin 3: GND | |Pin 2: SRC | +----+----+--+ | | | [R-Sense] | | -------------------------------+----+--[ Primary Ground ] Component Selection Checklist:

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Output voltage regulation is achieved via pulse-width modulation (PWM). A sample of the secondary output voltage is sent back to the primary side via an optocoupler. This feedback signal enters . It adjusts the internal oscillator's duty cycle to compensate for load and line variations. Safety and Protection Systems str f6267 datasheet pdf updated

To ensure optimal performance and reliability when using the STR-F6267, consider the following design guidelines:

Operating the component beyond these specified limits can cause permanent physical damage or drastically reduce the operational lifespan of the IC. All ratings are measured at an ambient temperature ( 650 V maximum Drain Current ( IDcap I sub cap D ): +---[ High Voltage DC Bus (+300V/400V) ] |

The STR-F6267 integrates a power MOSFET and a current-mode PWM controller into a single 5-pin SIP (Single In-line Package) or TO-3P package. Its primary goal is to simplify power supply design by reducing the number of external components needed on a PCB.

While different manufacturers may use slightly varied naming conventions, the typical 5-pin configuration for the Sanken STR-F6267 series is often focused on the following functions: Pin Number Description Ground reference. Vcc Power supply input for the IC. FB Feedback input for voltage regulation. CS Current sense input for peak current detection. DRAIN High-voltage MOSFET drain connection. This feedback signal enters

Shifts the switching frequency across a narrow spectrum to spread EMI energy, ensuring compliance with strict FCC and CISPR standards.

While the pinout hasn't physically changed (Pin 1: OCP/FB, Pin 2: Source, Pin 3: FB/OCP, Pin 4: Vcc, Pin 5: Drain), the new document adds high-resolution 3D renderings of the Full Mold Isolated Package . This eliminates confusion regarding heatsink mounting and isolation requirements.

For precise and up-to-date specifications, you must consult the official datasheet. However, based on currently available information, the STR-F6267's key parameters are as follows: