Str F6267 Datasheet Pdf -
| Parameter | Value/Rating | | :--- | :--- | | | 800 V | | Drain Current (Id) | 6 A (pulsed) / ~3A continuous (internal limit) | | RDS(on) (typ) | 1.95 Ω (max ~2.7 Ω) | | Built-in MOSFET | N-Channel, Avalanche-rated | | Operating Frequency | 19 kHz to 60 kHz (typically ~24-30 kHz in TV apps) | | Soft Start | 15 ms typ | | Standby Power | <0.5W at light load | | Overcurrent Protection (OCP) | Pulse-by-pulse, cycle-by-cycle | | Thermal Shutdown (TSD) | Auto-restart (140°C typ) | | Overvoltage Protection (OVP) | Latched (VCC > 23V triggers) |
Combines control circuitry and a 650V rugged power MOSFET.
The STF6267 is "bulletproof" against harsh automotive environments, featuring: str f6267 datasheet pdf
The is a high-performance, off-line switching regulator integrated circuit (IC) manufactured by Sanken Electric Co., Ltd. . Designed specifically for Switched-Mode Power Supplies (SMPS), this 5-pin hybrid IC integrates a robust power MOSFET and a current-mode PWM controller onto a single substrate. It is widely used in classic consumer electronics, including CRT televisions, VCRs, and audio amplifiers, because it reduces component counts and simplifies PCB layout.
MOSFET Drain terminal / Connects to the primary winding of the transformer Source MOSFET Source terminal / Ground return line 3 GND Control circuit ground 4 VCC Power supply terminal for the internal control logic 5 SS / OL Soft-Start and Overload delay control terminal Key Features and Functional Description 1. Built-In High-Voltage Power MOSFET | Parameter | Value/Rating | | :--- |
| Pin Number | Pin Name | Function Description | | :--------- | :------------- | :----------------------------------------------------------------------------------------------------------------------------------- | | 1 | | Ground Pin. The reference ground for the IC's control circuit. It must be connected to the primary-side ground in the PSU. | | 2 | Vcc | Power Supply Pin. Supplies the operating voltage to the internal controller (typically around 15-18V). This voltage is usually derived from an auxiliary winding on the transformer. | | 3 | FB | Feedback Pin. Receives the feedback signal from the secondary side (usually via an optocoupler) to regulate the output voltage. | | 4 | CS | Current Sense Pin. Monitors the primary current via an external sense resistor to detect overcurrent conditions and for cycle-by-cycle current limiting. | | 5 (or 8)* | DRAIN | Power Switching Pin. The drain terminal of the internal high-voltage power MOSFET. It is connected to the primary winding of the flyback transformer. | | 6 | SYNC | Synchronization Input Pin. Allows the switching frequency to be synchronized with an external clock for system-level timing coordination. May not be present on all variants (check datasheet). | | 7 | CT | Soft Start Time Setting Pin. An external capacitor connected to this pin sets the soft-start duration. | | 8 | DTC | Duty Taper Control Pin. Used to control the maximum duty cycle of the PWM output. |
If the STR-F6267 is unavailable during repairs or design phases, several cross-reference components within the Sanken STR-F series can serve as equivalents. Always verify pin compatibility and voltage/current thresholds before swapping. Built-In High-Voltage Power MOSFET | Pin Number |
Designed for durability, operating reliably in environments up to Built-in Protections:
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