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TOP259EN from POWER

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TOP259EN

Manufacturer: POWER

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

Partnumber Manufacturer Quantity Availability
TOP259EN POWER 10000 In Stock

Description and Introduction

Enhanced EcoSmart, Integrated Off-Line Switcher with Advanced Feature Set and Extended Power Range The **TOP259EN** is a power IC manufactured by **Power Integrations**.  

### **Specifications:**  
- **Input Voltage Range:** 85 VAC to 265 VAC (universal input)  
- **Output Power:** Up to 45 W (depending on design conditions)  
- **Switching Frequency:** 132 kHz (fixed)  
- **Maximum Duty Cycle:** 78%  
- **Integrated MOSFET:** 725 V (typical breakdown voltage)  
- **Operating Temperature Range:** -40°C to +150°C  
- **Package:** TO-220-7C (through-hole)  

### **Descriptions:**  
The **TOP259EN** is part of the **TOPSwitch-JX** family, designed for offline power supplies. It integrates a **high-voltage MOSFET**, PWM controller, and protection features into a single IC, simplifying power supply design.  

### **Features:**  
- **EcoSmart® Technology** for high efficiency and low standby power  
- **Advanced Protection Features:**  
  - Over-temperature protection (OTP)  
  - Over-voltage protection (OVP)  
  - Line under-voltage (UV) and over-voltage (OV) protection  
  - Output over-current protection (OCP)  
- **Auto-restart mode** for fault recovery  
- **Frequency jittering** for reduced EMI  
- **Soft-start** to minimize inrush current  

This IC is commonly used in **AC-DC power adapters, industrial power supplies, and LED drivers**.  

(Source: Power Integrations datasheet)

Application Scenarios & Design Considerations

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

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