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TOP222G from TOP

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TOP222G

Manufacturer: TOP, POWER

Three-terminal Off-line PWM Switch

Partnumber Manufacturer Quantity Availability
TOP222G TOP, POWER 8579 In Stock

Description and Introduction

Three-terminal Off-line PWM Switch The TOP222G is a member of the TOPSwitch-GX family of integrated switching power supply ICs, manufactured by Power Integrations.  

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

### **Specifications:**  
- **Input Voltage Range:** 85V AC to 265V AC (universal input)  
- **Output Power:** Up to 9W (for open-frame designs)  
- **Switching Frequency:** 132 kHz (fixed)  
- **Maximum Duty Cycle:** 78%  
- **Efficiency:** Up to 90%  
- **Operating Temperature Range:** -40°C to +150°C  
- **Package:** TO-220-7C (through-hole)  

### **Descriptions:**  
- The TOP222G integrates a high-voltage MOSFET, PWM controller, and protection features into a single IC.  
- It is designed for offline flyback and forward converters in power supplies.  
- Features cycle-by-cycle current limiting for overload protection.  

### **Features:**  
- **Integrated High-Voltage MOSFET:** 700V breakdown voltage.  
- **Auto-Restart Protection:** For overload, open-loop, and thermal fault conditions.  
- **Frequency Jittering:** Reduces EMI emissions.  
- **Soft-Start:** Minimizes startup stresses.  
- **Adjustable Current Limit:** Enhances design flexibility.  
- **Low Power Consumption:** < 100 mW standby power.  

This IC is commonly used in AC/DC power supplies for consumer electronics, industrial controls, and appliances.

Application Scenarios & Design Considerations

Three-terminal Off-line PWM Switch

Alternative Part Number

  • TNY264GN --: TinySwitch-III family off-line switcher in the same DIP-8 package; commonly used as a lower-power substitute for TOP222G in small AC-DC supplies.
  • LNK304GN --: LinkSwitch-TN integrated switcher in DIP-8, suitable for low-power buck/off-line designs and a practical cross-family replacement for TOP222G.
  • VIPER22A --: Widely available off-line PWM switcher in DIP-8 with comparable power range, often used as a generic alternative to TOP222G in low-power adapters.

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