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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.

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.

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