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UC2854ADWTRG4 from TI,Texas Instruments

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15.625ms

UC2854ADWTRG4

Manufacturer: TI

Enhanced High Power Factor Preregulator 16-SOIC -40 to 85

Partnumber Manufacturer Quantity Availability
UC2854ADWTRG4 TI 2530 In Stock

Description and Introduction

Enhanced High Power Factor Preregulator 16-SOIC -40 to 85 The UC2854ADWTRG4 is a high-performance current-mode PWM controller manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Topology:** Current-mode PWM controller  
- **Input Voltage Range:** 8.4V to 30V  
- **Operating Frequency Range:** Up to 1MHz  
- **Output Drive Current:** ±1.5A (peak)  
- **Duty Cycle Range:** 0% to 100%  
- **Error Amplifier Bandwidth:** 5MHz  
- **Start-Up Current:** 0.5mA (typical)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOIC-16 (DW)  

### **Descriptions:**  
The UC2854ADWTRG4 is designed for high-frequency power supply applications. It features precise duty cycle control, cycle-by-cycle current limiting, and a high-speed error amplifier for improved transient response.  

### **Features:**  
- **Current-Mode Control:** Enhances loop response and simplifies compensation.  
- **Programmable Soft-Start:** Reduces inrush current during startup.  
- **Undervoltage Lockout (UVLO):** Ensures proper operation within voltage limits.  
- **Synchronization Capability:** Allows synchronization to an external clock.  
- **High-Current Totem Pole Output:** Supports fast switching of power MOSFETs.  
- **Low Power Consumption:** Optimized for efficiency.  

This device is commonly used in AC/DC converters, DC/DC converters, and offline power supplies.

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