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VIPER53 from ST,ST Microelectronics

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4.883ms

VIPER53

Manufacturer: ST

OFF LINE PRIMARY SWITCH

Partnumber Manufacturer Quantity Availability
VIPER53 ST 1200 In Stock

Description and Introduction

OFF LINE PRIMARY SWITCH The VIPER53 is a monolithic IC from STMicroelectronics designed for offline power supplies.  

### **Manufacturer:** STMicroelectronics  

### **Specifications:**  
- **Input Voltage Range:** 9V to 38V (DC)  
- **Output Power:** Up to 13W (in flyback topology)  
- **Operating Frequency:** 60 kHz (fixed)  
- **Standby Power Consumption:** < 1W  
- **Integrated Features:**  
  - High-voltage startup circuit  
  - PWM controller with current-mode control  
  - Overvoltage protection (OVP)  
  - Overload protection (OLP)  
  - Thermal shutdown  
  - Soft-start function  

### **Descriptions:**  
The VIPER53 is a high-voltage converter IC optimized for cost-effective offline power supplies. It integrates a power MOSFET, PWM controller, and protection features, reducing external component count. It is commonly used in AC/DC adapters, auxiliary power supplies, and industrial applications.  

### **Features:**  
- **High-Voltage Startup:** Eliminates the need for an external startup resistor.  
- **Current-Mode Control:** Ensures stable operation under varying loads.  
- **Protections:** Built-in OVP, OLP, and thermal shutdown.  
- **Low Standby Power:** Compliant with energy-saving standards.  
- **Compact Design:** Suitable for space-constrained applications.  

For detailed electrical characteristics, refer to the official STMicroelectronics datasheet.

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