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VIPER100B from ST,ST Microelectronics

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VIPER100B

Manufacturer: ST

SMPS PRIMARY I.C.

Partnumber Manufacturer Quantity Availability
VIPER100B ST 25 In Stock

Description and Introduction

SMPS PRIMARY I.C. The VIPER100B is a high-voltage converter manufactured by STMicroelectronics. It is part of the VIPerPlus family, designed for offline power supplies.  

### **Specifications:**  
- **Input Voltage Range:** 85 VAC to 265 VAC  
- **Output Power:** Up to 100 W (depending on topology)  
- **Switching Frequency:** 60 kHz (fixed)  
- **Integrated Power MOSFET:** 800 V avalanche-rugged  
- **Current Mode Control:** Improves transient response  
- **Low Standby Power Consumption:** < 100 mW  
- **Protection Features:**  
  - Overvoltage protection (OVP)  
  - Overcurrent protection (OCP)  
  - Thermal shutdown  
  - Auto-restart mode  

### **Descriptions & Features:**  
- **Monolithic Design:** Combines PWM controller and high-voltage MOSFET in a single package.  
- **Primary Sensing Regulation:** Eliminates the need for an optocoupler in flyback topologies.  
- **Soft-Start:** Reduces inrush current.  
- **Frequency Jittering:** Minimizes EMI emissions.  
- **Wide Operating Temperature Range:** -40°C to +150°C (junction temperature).  
- **Package Options:** PowerSO-10 or DIP-8.  

The VIPER100B is commonly used in AC-DC converters for applications like adapters, industrial power supplies, and LED drivers.

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