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TOP244R from POWER

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TOP244R

Manufacturer: POWER

TOPSwitch -GX Family Extended Power, Design Flexible, EcoSmart, Integrated Off-line Switcher

Partnumber Manufacturer Quantity Availability
TOP244R POWER 29820 In Stock

Description and Introduction

TOPSwitch -GX Family Extended Power, Design Flexible, EcoSmart, Integrated Off-line Switcher The TOP244R is a member of the TOPSwitch-GX family of integrated switching power supply ICs, manufactured by Power Integrations.  

### **Specifications:**  
- **Input Voltage Range:** 85–265 VAC (universal input)  
- **Output Power Range:** Up to 29 W (depending on design and cooling conditions)  
- **Switching Frequency:** 132 kHz  
- **Maximum Duty Cycle:** 78%  
- **Efficiency:** Up to 90% (depending on design)  
- **Operating Temperature Range:** -40°C to +150°C  
- **Package:** TO-220-7C (with integrated heatsink tab)  
- **Protection Features:**  
  - Overload protection  
  - Over-temperature shutdown  
  - Line undervoltage detection  
  - Auto-restart for fault conditions  

### **Descriptions:**  
The TOP244R is a highly integrated offline switcher IC that combines a high-voltage MOSFET, PWM controller, and protection circuits into a single package. It is designed for flyback, forward, and buck-boost converter topologies in power supplies.  

### **Features:**  
- **Integrated 700V MOSFET**  
- **Frequency Jittering** for reduced EMI  
- **Adjustable Current Limit** for optimized power handling  
- **Soft-Start** to minimize inrush current  
- **Low Standby Power Consumption** (<300 mW in no-load conditions)  
- **EcoSmart® Technology** for energy-efficient operation  

This device is commonly used in AC/DC power supplies for consumer electronics, industrial controls, and LED lighting applications.

Application Scenarios & Design Considerations

TOPSwitch -GX Family Extended Power, Design Flexible, EcoSmart, Integrated Off-line Switcher

Alternative Part Number

  • TNY274PN --: Same TinySwitch family from Power Integrations, pin-compatible off-line switcher with integrated MOSFET, suitable for lower-power designs replacing TOP244R.
  • LNK304PN --: LinkSwitch-TN integrated off-line switcher from the same vendor, simple buck topology alternative with integrated controller and MOSFET.
  • VIPER22A --: Widely available integrated off-line PWM switcher with built-in MOSFET, a common cross-vendor substitute for TOP-series devices in low-power supplies.
  • TNY278PN --: Same TinySwitch family from Power Integrations, pin-compatible in many flyback designs with integrated high-voltage MOSFET and similar control scheme; verify power rating for the target application.
  • NCP1014AP065G --: Self-supplied monolithic offline switcher with integrated MOSFET, suitable as an alternative in low-power AC-DC converters; confirm thermal and power requirements.

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