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VIPER20-22-E from STMicroelectronics,ST Microelectronics

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VIPER20-22-E

Manufacturer: STMicroelectronics

SMPS PRIMARY I.C.

Partnumber Manufacturer Quantity Availability
VIPER20-22-E,VIPER2022E STMicroelectronics 15014 In Stock

Description and Introduction

SMPS PRIMARY I.C. The VIPER20-22-E is a high-voltage converter from STMicroelectronics, designed for offline power supplies. Below are its key specifications, descriptions, and features:  

### **Specifications:**  
- **Input Voltage Range:** 9V to 38V (DC)  
- **Output Power:** Up to 20W (depending on configuration)  
- **Switching Frequency:** 60 kHz (fixed)  
- **Output Voltage Regulation:** Adjustable via external components  
- **Operating Temperature Range:** -40°C to +150°C (junction temperature)  
- **Package:** SO-8 (Surface Mount)  

### **Descriptions:**  
- The VIPER20-22-E is a monolithic IC integrating a PWM controller and a high-voltage power MOSFET.  
- It is optimized for offline flyback and buck converter topologies.  
- Includes built-in protections such as thermal shutdown, overvoltage protection (OVP), and current limiting.  

### **Features:**  
- **Integrated 800V avalanche-rugged power MOSFET**  
- **PWM current-mode control**  
- **Low standby power consumption**  
- **Auto-restart protection for overload and short-circuit conditions**  
- **Frequency jittering for improved EMI performance**  
- **Soft-start function to reduce inrush current**  

This device is commonly used in AC/DC adapters, LED drivers, and auxiliary power supplies.

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