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UC3854BDWG4 from TIBB,Texas Instruments

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UC3854BDWG4

Manufacturer: TIBB

Enhanced High Power Factor Preregulator

Partnumber Manufacturer Quantity Availability
UC3854BDWG4 TIBB 220 In Stock

Description and Introduction

Enhanced High Power Factor Preregulator The UC3854BDWG4 is a power factor correction (PFC) controller manufactured by Texas Instruments (TI). Below are the factual specifications, descriptions, and features from Ic-phoenix technical data files:

### **Manufacturer:**  
Texas Instruments (TI)  

### **Part Number:**  
UC3854BDWG4  

### **Description:**  
The UC3854BDWG4 is a high-performance power factor correction (PFC) controller designed for boost-type preregulator applications. It provides near-unity power factor and low harmonic distortion in AC input systems.  

### **Key Features:**  
- **Average Current Mode Control:** Ensures low distortion and high power factor.  
- **Wide Operating Range:**  
  - Input Voltage Range: Up to 600V (with external components).  
  - Operating Frequency: Up to 500 kHz.  
- **Precision Reference:** 7.5V ±1% bandgap voltage reference.  
- **Programmable Oscillator:** Allows flexible frequency setting.  
- **Soft-Start Function:** Reduces inrush current during startup.  
- **Overvoltage Protection (OVP):** Prevents output voltage runaway.  
- **Undervoltage Lockout (UVLO):** Ensures proper operation under low-voltage conditions.  
- **Low Startup Current:** Typically 150 µA.  
- **Package:** SOIC-16 (DW)  

### **Applications:**  
- AC/DC power supplies  
- Power factor correction circuits  
- Industrial and consumer power systems  

### **Additional Notes:**  
- The device is RoHS compliant.  
- It is designed for high-efficiency power conversion with minimal external components.  

This information is based solely on the manufacturer's datasheet and technical documentation.

Application Scenarios & Design Considerations

Enhanced High Power Factor Preregulator
Partnumber Manufacturer Quantity Availability
UC3854BDWG4 TEXAS 47 In Stock

Description and Introduction

Enhanced High Power Factor Preregulator The UC3854BDWG4 is a high-performance power factor correction (PFC) controller manufactured by Texas Instruments. Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Manufacturer:** Texas Instruments  
- **Category:** PMIC - Power Factor Correction (PFC) Controllers  
- **Package:** SOIC-16 (Wide)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Supply Voltage (Vcc):** 15V to 35V  
- **Output Current:** 1A (Peak)  
- **Switching Frequency:** Adjustable up to 250kHz  
- **Control Method:** Average Current Mode Control  
- **Power Factor Correction:** Yes  

### **Descriptions:**
The UC3854BDWG4 is designed for power factor correction in AC/DC power supplies. It provides high-performance control for boost-type PFC circuits, ensuring compliance with harmonic distortion standards. The device features average current mode control, simplifying loop compensation while maintaining low harmonic distortion.

### **Features:**
- **Average Current Mode Control** for low harmonic distortion  
- **Programmable Switching Frequency** (up to 250kHz)  
- **Low Start-Up Current** (< 1mA)  
- **Overvoltage Protection**  
- **Undervoltage Lockout (UVLO)**  
- **Peak Current Limiting**  
- **High-Current Totem Pole Output** (1A peak)  
- **Single-Pin Error Amplifier and Multiplier Output**  
- **Wide Operating Voltage Range (15V to 35V)**  

This IC is commonly used in power supplies, industrial systems, and applications requiring compliance with power quality standards.

Application Scenarios & Design Considerations

Enhanced High Power Factor Preregulator

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