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VIPER53SP from STMicroelectronics,ST Microelectronics

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VIPER53SP

Manufacturer: STMicroelectronics

OFF LINE PRIMARY SWITCH

Partnumber Manufacturer Quantity Availability
VIPER53SP STMicroelectronics 50 In Stock

Description and Introduction

OFF LINE PRIMARY SWITCH The VIPER53SP is a high-voltage converter from STMicroelectronics, designed for offline power supplies.  

**Key Specifications:**  
- **Input Voltage Range:** 8.5V to 38V (DC)  
- **Output Power:** Up to 13W (in flyback topology)  
- **Switching Frequency:** 60 kHz (fixed)  
- **Integrated Power MOSFET:** 700V breakdown voltage  
- **Standby Power Consumption:** < 1W  
- **Protection Features:** Overvoltage, overcurrent, thermal shutdown, and soft-start  

**Description:**  
The VIPER53SP is a monolithic IC combining a PWM controller and a high-voltage power MOSFET, optimized for cost-effective AC-DC converters. It operates in current-mode control for improved transient response.  

**Features:**  
- **High-Voltage Startup Circuit:** Eliminates external startup resistor  
- **Auto-Recovery Protection:** For overcurrent and overtemperature  
- **Frequency Jittering:** Reduces EMI emissions  
- **Adjustable Output Voltage:** Via external feedback network  
- **Low Operating Current:** Enhances efficiency in light-load conditions  

This device is commonly used in adapters, chargers, and auxiliary power supplies.  

*(Source: STMicroelectronics VIPER53SP datasheet)*

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