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TOP255LN

Manufacturer: POWER

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

Partnumber Manufacturer Quantity Availability
TOP255LN POWER 7034 In Stock

Description and Introduction

Enhanced EcoSmart, Integrated Off-Line Switcher with Advanced Feature Set and Extended Power Range The TOP255LN is a member of the TOPSwitch-JX family of integrated switching power supply ICs, manufactured by Power Integrations.  

### **Specifications:**  
- **Input Voltage Range:** 85–265 VAC (universal input)  
- **Output Power:** Up to 28 W (depending on design and cooling conditions)  
- **Switching Frequency:** 132 kHz (fixed)  
- **Efficiency:** Up to 90% (Energy Star compliant)  
- **Package:** TO-220-7C (with full isolation)  
- **Operating Temperature Range:** -40°C to +150°C  
- **Protection Features:**  
  - Over-temperature protection (OTP)  
  - Over-voltage protection (OVP)  
  - Over-current protection (OCP)  
  - Auto-restart for fault conditions  

### **Descriptions and Features:**  
- **Highly Integrated Design:** Combines a high-voltage MOSFET, PWM controller, and protection circuits in a single chip.  
- **EcoSmart® Technology:** Reduces standby power consumption (<30 mW).  
- **Frequency Jittering:** Minimizes EMI, reducing filter costs.  
- **Soft Start:** Reduces inrush current stress.  
- **Wide Input Voltage Range:** Supports universal AC input (85–265 VAC).  
- **Isolated Package:** TO-220-7C provides reinforced insulation for safety compliance.  

The TOP255LN is commonly used in offline power supplies for applications such as adapters, industrial controls, and consumer electronics.

Application Scenarios & Design Considerations

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

Alternative Part Number

  • LNK626PG --: Same manufacturer's LinkSwitch-CV family, integrated offline switcher with comparable power range and built-in MOSFET, suitable drop-in for many low-power designs.
  • VIPER22A --: Widely available offline PWM switcher with integrated high-voltage MOSFET, similar function and power class, commonly used as a cross-family substitute.
  • NCP1014AP065G --: Self-supplied monolithic switcher with integrated MOSFET and current-mode control, comparable to TOP255LN in low-power AC-DC applications.

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