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STRW6753 from SK

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STRW6753

Manufacturer: SK, SANKEN

Universal-Input/58 W Off-Line Quasi-Resonant Flyback Switching Regulator

Partnumber Manufacturer Quantity Availability
STRW6753 SK, SANKEN 14650 In Stock

Description and Introduction

Universal-Input/58 W Off-Line Quasi-Resonant Flyback Switching Regulator The STRW6753 is a switching power supply IC manufactured by SANKEN. Below are its specifications, descriptions, and features based on available information:

### **Specifications:**  
- **Input Voltage Range:** 85V to 265V AC  
- **Output Power:** Up to 120W (depending on design)  
- **Switching Frequency:** Fixed at 67 kHz  
- **Maximum Drain-Source Voltage (VDSS):** 650V  
- **Maximum Drain Current (ID):** 9A  
- **Low Standby Power Consumption:** <1W (typical)  
- **Operating Temperature Range:** -25°C to +125°C  
- **Package Type:** TO-3P(N)  

### **Descriptions:**  
The STRW6753 is a high-voltage switching regulator IC designed for offline power supplies. It integrates a power MOSFET, PWM controller, and protection circuits into a single package. It is commonly used in applications such as LCD/LED TVs, monitors, and other AC/DC power supplies.  

### **Features:**  
- **Built-in Power MOSFET:** Reduces external component count.  
- **Soft-Start Function:** Minimizes inrush current.  
- **Overcurrent Protection (OCP):** Safeguards against excessive current.  
- **Overvoltage Protection (OVP):** Prevents damage from high voltage.  
- **Thermal Shutdown (TSD):** Protects against overheating.  
- **Frequency Jittering:** Reduces EMI noise.  
- **Auto-Restart Function:** Recovers automatically after fault conditions.  

For detailed application circuits and performance curves, refer to the official SANKEN datasheet.

Application Scenarios & Design Considerations

Universal-Input/58 W Off-Line Quasi-Resonant Flyback Switching Regulator

Alternative Part Number

  • STR-W6753 --: Same STR-W6753 series offline switching regulator IC from Sanken, the original designer of the STR-W6753, with identical pinout and electrical specifications.
  • STR-W6754 --: Higher-power member of the same STR-W675x family with compatible pinout and control scheme, usable as a drop-in upgrade in most flyback power supply designs.
  • STR-W6756 --: Another STR-W675x family variant with similar topology and pin configuration, suitable when slightly different power ratings are acceptable.
  • ICE3B0565 --: Offline flyback PWM controller with integrated 650V MOSFET, similar power range and function to the STRW6753; widely available and well documented.
  • VIPER22A --: Integrated offline switcher with built-in power MOSFET, commonly used as a drop-in style replacement in small flyback supplies; different series name and easy to source.
  • TNY267PN --: TinySwitch-III integrated offline switcher suitable for low-power flyback designs, offering comparable functionality with a distinct part family.

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