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UC2855BDWTRG4 from TI,Texas Instruments

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UC2855BDWTRG4

Manufacturer: TI

High Performance Power Factor Preregulator 20-SOIC -40 to 85

Partnumber Manufacturer Quantity Availability
UC2855BDWTRG4 TI 2530 In Stock

Description and Introduction

High Performance Power Factor Preregulator 20-SOIC -40 to 85 The UC2855BDWTRG4 is a high-performance current-mode PWM controller manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Topology:** Current-Mode PWM Controller  
- **Input Voltage Range:** 15V to 35V (VCC)  
- **Operating Frequency:** Up to 1MHz  
- **Output Drive Current:** ±1A (Peak)  
- **Duty Cycle Range:** 0% to 100%  
- **Error Amplifier Bandwidth:** 5MHz  
- **Soft-Start Control:** Adjustable  
- **Undervoltage Lockout (UVLO):** Adjustable  
- **Package:** SOIC-16 (DW)  
- **Operating Temperature Range:** -40°C to +85°C  

### **Descriptions:**  
The UC2855BDWTRG4 is designed for high-efficiency power supply applications, featuring precise current-mode control, fast transient response, and robust protection features. It is commonly used in AC/DC converters, DC/DC converters, and offline power supplies.  

### **Features:**  
- **Current-Mode Operation:** Improves loop response and simplifies compensation.  
- **Programmable Soft-Start:** Reduces inrush current during startup.  
- **Precision Reference Voltage:** 5V ±1% for accurate regulation.  
- **Synchronizable Oscillator:** Allows synchronization with external clock signals.  
- **Cycle-by-Cycle Current Limiting:** Enhances system protection.  
- **Low Startup Current:** Typically 0.5mA.  
- **High Noise Immunity:** Robust against switching noise.  

This device is ideal for applications requiring high efficiency, reliability, and precise power control.

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