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UCC3818DWTR from TI,Texas Instruments

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UCC3818DWTR

Manufacturer: TI

BiCMOS Power Factor Preregulator

Partnumber Manufacturer Quantity Availability
UCC3818DWTR TI 110 In Stock

Description and Introduction

BiCMOS Power Factor Preregulator The UCC3818DWTR is a power factor correction (PFC) controller manufactured by Texas Instruments (TI).  

### **Specifications:**  
- **Topology:** Average Current Mode Control  
- **Input Voltage Range:** 85V to 265V AC  
- **Switching Frequency:** Up to 250 kHz  
- **Output Voltage Regulation:** Adjustable  
- **Operating Temperature Range:** -40°C to 85°C  
- **Package:** SOIC-16 (DW)  
- **Control Method:** Continuous Conduction Mode (CCM)  
- **Supply Voltage (VCC):** 12V to 17.5V  
- **Peak Gate Drive Current:** ±1.5A  

### **Descriptions:**  
The UCC3818DWTR is a high-performance PFC controller designed for power supplies requiring power factor correction. It uses average current mode control to achieve near-unity power factor and low harmonic distortion.  

### **Features:**  
- **Precision Reference Voltage:** 5V ±1%  
- **Programmable Soft-Start**  
- **Overvoltage Protection (OVP)**  
- **Undervoltage Lockout (UVLO)**  
- **Zero-Current Detection (ZCD)**  
- **Low Startup Current (<150µA)**  
- **Multiplier Output for Feedforward Compensation**  

This device is commonly used in AC/DC power supplies, industrial systems, and consumer electronics requiring compliance with power quality standards.  

(Source: Texas Instruments Datasheet)

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