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TNY268G from POWER

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TNY268G

Manufacturer: POWER, POER

Enhanced, Energy Effi cient, Low Power Off-line Switcher

Partnumber Manufacturer Quantity Availability
TNY268G POWER, POER 1423 In Stock

Description and Introduction

Enhanced, Energy Effi cient, Low Power Off-line Switcher The TNY268G is a member of the TinySwitch-II family of integrated circuits (ICs) manufactured by Power Integrations. Below are the key specifications, descriptions, and features based on factual information:

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

### **Specifications:**  
1. **Input Voltage Range:**  
   - 85 VAC to 265 VAC (universal input)  

2. **Output Power:**  
   - Up to **9W** in open-frame applications (depending on design and conditions)  

3. **Switching Frequency:**  
   - **132 kHz** (fixed)  

4. **Efficiency:**  
   - High efficiency (typically >70%)  

5. **Current Limit:**  
   - Auto-restart protection with **cycle-by-cycle current limiting**  

6. **Operating Temperature Range:**  
   - **-40°C to +150°C** (junction temperature)  

7. **Package:**  
   - **DIP-8B (through-hole) or SMD-8B (surface-mount)**  

8. **Protection Features:**  
   - Overload protection  
   - Over-temperature protection  
   - Line under-voltage detection (auto-restart)  

### **Descriptions:**  
- The TNY268G is a low-power offline switcher IC designed for energy-efficient power supplies.  
- It integrates a **700V power MOSFET**, oscillator, high-voltage switched current source, and thermal shutdown circuitry.  
- Suitable for **flyback converters** in AC-DC applications.  

### **Features:**  
1. **Auto-Restart Protection:** Safely limits output power during faults.  
2. **Frequency Jittering:** Reduces EMI emissions.  
3. **Burst Mode Operation:** Enhances efficiency at light loads.  
4. **Simple Design:** Requires minimal external components.  
5. **Low Standby Power:** Meets global energy-efficiency standards.  

For detailed application notes, refer to Power Integrations' official datasheet.

Application Scenarios & Design Considerations

Enhanced, Energy Effi cient, Low Power Off-line Switcher

Alternative Part Number

  • LNK626DG --: Same manufacturer's LinkSwitch-CV family, integrated offline switcher in the same power class with built-in MOSFET, suitable drop-in for low-power adapter designs.
  • VIPER22A --: Widely used offline PWM switcher with integrated high-voltage MOSFET, comparable power range and DIP-8/SO-8 package options, common cross for TinySwitch designs.
  • NCP1014 --: Self-supplied monolithic offline switcher with integrated MOSFET, similar power capability and package footprint, a practical alternative when TinySwitch parts are unavailable.
  • LNK364GN --: Same Power Integrations LinkSwitch family with integrated MOSFET and offline switcher function; pin-compatible SMD package and suitable for low-power designs, though power rating is lower so verify load requirements.
  • VIPER22AS --: Offline flyback switcher with integrated high-voltage MOSFET in an SMD package, commonly used as a functional substitute for TinySwitch devices in low-power AC-DC supplies; check pinout and power rating.
  • NCP1014ST100T3G --: Self-supplied monolithic offline switcher with integrated MOSFET in SOT-223, a common alternative for low-power isolated supplies; verify thermal and power margins against the original design.

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