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STR-L451 from SANKEN

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STR-L451

Manufacturer: SANKEN

Power IC for Quasi-Resonant Type Switching Power Supply with High Efficiency, Low Noise

Partnumber Manufacturer Quantity Availability
STR-L451,STRL451 SANKEN 10910 In Stock

Description and Introduction

Power IC for Quasi-Resonant Type Switching Power Supply with High Efficiency, Low Noise The STR-L451 is a switching regulator IC manufactured by SANKEN. Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:  

### **Specifications:**  
- **Input Voltage Range:** 85V to 265V AC (for universal input)  
- **Output Power:** Up to 45W (depending on design conditions)  
- **Switching Frequency:** Fixed frequency operation (exact value depends on external components)  
- **Standby Power Consumption:** Low standby power operation  
- **Protection Features:**  
  - Overcurrent Protection (OCP)  
  - Overvoltage Protection (OVP)  
  - Thermal Shutdown (TSD)  
  - Auto-restart function for fault conditions  

### **Descriptions:**  
- The STR-L451 is a hybrid IC designed for offline switching power supplies.  
- It integrates a high-voltage MOSFET and a controller circuit in a single package.  
- Suitable for flyback converter topologies in AC-DC power supplies.  
- Used in applications such as LED drivers, adapters, and auxiliary power supplies.  

### **Features:**  
- **High Efficiency:** Optimized for low power loss.  
- **Compact Design:** Reduces external component count.  
- **Built-in Protections:** Enhances system reliability.  
- **Wide Input Voltage Range:** Supports universal AC input.  
- **Soft Start Function:** Reduces inrush current at startup.  

For exact electrical characteristics, refer to the official SANKEN datasheet.

Application Scenarios & Design Considerations

Power IC for Quasi-Resonant Type Switching Power Supply with High Efficiency, Low Noise

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