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IR1155STRPBF from IR,International Rectifier

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IR1155STRPBF

Manufacturer: IR

PROGRAMMABLE FREQUENCY, ONE CYCLE CONTROL PFC IC

Partnumber Manufacturer Quantity Availability
IR1155STRPBF IR 35000 In Stock

Description and Introduction

PROGRAMMABLE FREQUENCY, ONE CYCLE CONTROL PFC IC The IR1155STRPBF is a high-performance, single-phase PFC (Power Factor Correction) controller IC manufactured by Infineon Technologies.  

### **Key Specifications:**  
- **Input Voltage Range:** 85V to 265V AC  
- **Operating Frequency:** Adjustable up to 300kHz  
- **Control Method:** Critical Conduction Mode (CrM)  
- **Output Voltage Regulation:** Adjustable  
- **Maximum Duty Cycle:** 95%  
- **Start-Up Current:** < 50µA  
- **Supply Voltage (VCC):** 10V to 20V  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package:** SOIC-8  

### **Descriptions and Features:**  
- **High Efficiency:** Optimized for CrM operation to minimize switching losses.  
- **Integrated Protection:** Includes overvoltage protection (OVP), brownout detection, and thermal shutdown.  
- **Low Standby Power:** Supports energy-saving applications with low start-up current.  
- **Precision Reference:** Internal 5V reference for accurate voltage regulation.  
- **Soft-Start Function:** Reduces inrush current during startup.  
- **Zero-Current Detection (ZCD):** Ensures boundary conduction mode operation for improved efficiency.  
- **Driver Output:** Capable of driving an external MOSFET directly.  

This IC is commonly used in AC-DC power supplies, LED drivers, and industrial power systems requiring high power factor correction.

Application Scenarios & Design Considerations

PROGRAMMABLE FREQUENCY, ONE CYCLE CONTROL PFC IC

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