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TOP254EN from POWER

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TOP254EN

Manufacturer: POWER

Enhanced EcoSmart, Integrated Off-Line Switcher with Advanced Feature Set and Extended Power Range

Partnumber Manufacturer Quantity Availability
TOP254EN POWER 10000 In Stock

Description and Introduction

Enhanced EcoSmart, Integrated Off-Line Switcher with Advanced Feature Set and Extended Power Range The TOP254EN is a member of the TOPSwitch-HX family of integrated power switches manufactured by Power Integrations.  

### **Manufacturer:**  
- **Power Integrations**  

### **Specifications:**  
- **Topology:** Flyback, Forward, Buck-Boost  
- **Input Voltage Range:** 85 VAC to 265 VAC (universal input)  
- **Output Power:** Up to 29 W (open frame)  
- **Switching Frequency:** 132 kHz (fixed)  
- **Maximum Duty Cycle:** 78%  
- **Current Limit:** Adjustable (via external resistor)  
- **Efficiency:** Up to 90% (depending on design)  
- **Protection Features:**  
  - Over-temperature protection (OTP)  
  - Over-voltage protection (OVP)  
  - Under-voltage lockout (UVLO)  
  - Auto-restart for fault conditions  

### **Descriptions:**  
The TOP254EN integrates a high-voltage MOSFET, PWM controller, and protection features into a single IC. It is designed for offline power supplies, reducing component count and simplifying design.  

### **Features:**  
- **Integrated 700 V MOSFET**  
- **Frequency Jittering for Reduced EMI**  
- **Line-Sensing for Enhanced Efficiency**  
- **Soft-Start for Reduced Inrush Current**  
- **Thermally Enhanced Package (TO-220-7C)**  
- **Wide Operating Temperature Range (-40°C to +150°C)**  

This device is commonly used in AC-DC converters, adapters, and auxiliary power supplies.

Application Scenarios & Design Considerations

Enhanced EcoSmart, Integrated Off-Line Switcher with Advanced Feature Set and Extended Power Range

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