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VIPER28HD from ST,ST Microelectronics

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VIPER28HD

Manufacturer: ST

VIPerPlus family: fixed frequency high performance off line high voltage converter

Partnumber Manufacturer Quantity Availability
VIPER28HD ST 2500 In Stock

Description and Introduction

VIPerPlus family: fixed frequency high performance off line high voltage converter The VIPER28HD is a high-voltage converter manufactured by STMicroelectronics. Below are the specifications, descriptions, and features based on Ic-phoenix technical data files:

### **Specifications:**  
- **Input Voltage Range:** 85 V to 265 V AC  
- **Output Power:** Up to 28 W (depending on configuration)  
- **Switching Frequency:** Fixed at 60 kHz  
- **Operating Temperature Range:** -40°C to +150°C  
- **Package:** SO-16 (Surface Mount)  
- **Protection Features:**  
  - Overvoltage protection (OVP)  
  - Overcurrent protection (OCP)  
  - Thermal shutdown  
  - Auto-restart mode  

### **Description:**  
The VIPER28HD is a monolithic high-voltage power converter IC designed for offline switch-mode power supplies (SMPS). It integrates a PWM controller, a high-voltage power MOSFET, and protection circuits in a single chip, making it suitable for compact and efficient power supply designs.  

### **Features:**  
- **Integrated 800 V avalanche-rugged power MOSFET**  
- **Low standby power consumption (< 30 mW)**  
- **Frequency jittering for improved EMI performance**  
- **Soft-start for reduced inrush current**  
- **Primary sensing regulation (no optocoupler required in some configurations)**  
- **Adjustable output voltage and current limit**  

This information is based on the manufacturer's datasheet and technical documentation.

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