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+---[ Transformer Primary ]---+ | | AC Input ---> [Rectifier] | | | +--[Pin 1: Drain] | [Pin 2: Source] -----------+---> Sense Resistor ---> GND [Pin 3: GND] ------------------> GND [Pin 4: VCC] <--- [Auxiliary Winding Circuit] [Pin 5: SS/OL] <-- [RC Network] Circuit Design Considerations
The remains a relevant and robust IC for linear-to-SMPS power supply upgrades and repairs. By understanding its key features and pinout from its datasheet , engineers can ensure reliable, efficient power regulation in their applications.
| 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) | str f6267 datasheet pdf
Choosing the STR-F6267 for a power supply design offers several tangible benefits for engineers:
TO-220 or similar multi-lead SIP (Single Inline Package) Max Input Voltage: Optimized for 220V/110V AC rectification Key Protection: Overcurrent, Overvoltage, Over-temperature Switching Method: Quasi-resonant (QR) STR-F6267 Pinout and Pin Description
| Protection | Trigger Condition | Behavior | Resets by | | :--- | :--- | :--- | :--- | | | FB pin voltage > ~0.8V | Cycle-by-cycle drain current limiting | Automatic next cycle | | Overvoltage (OVP) | VCC > 23V | Latched shutdown (gate drive stops) | AC power recycle | | Thermal Shutdown (TSD) | Junction temp > 140°C | Latched shutdown | AC power recycle | Please let me know if you want me
is a high-performance off-line switching regulator IC manufactured by
: Built-in silicon N-channel power switching transistor optimized for high voltage and thermal stability.
While some extended datasheets list up to 8 pins for specific series variants, the standard STR-F6267 module typically uses a 5-pin layout: Pin 1 (GND): Ground connection Jotrin Electronics Pin 2 (Vcc): Power supply input for the control IC Jotrin Electronics Pin 3 (FB/OCP): Feedback and Overcurrent Protection Jotrin Electronics Pin 4 (CS): Current Sense Jotrin Electronics Pin 5 (Drain): | Parameter | Value/Rating | | :--- |
The STR-F6267 is a popular choice for designers needing a compact and reliable power solution for:
The STR-F6267 is a power management IC (PMIC) developed by Sanken Electric Co., Ltd. The datasheet PDF provides detailed information about the IC's features, specifications, and application notes. In this review, we'll take a closer look at the datasheet and provide an overview of the IC's capabilities.