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UC3853NG4 from TEXAS

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UC3853NG4

Manufacturer: TEXAS

High Power Factor Preregulator 8-PDIP 0 to 70

Partnumber Manufacturer Quantity Availability
UC3853NG4 TEXAS 8 In Stock

Description and Introduction

High Power Factor Preregulator 8-PDIP 0 to 70 The UC3853NG4 is a 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  
- **Package:** PDIP-16  
- **Operating Temperature:** -40°C to +85°C  
- **Mounting Type:** Through Hole  
- **Output Type:** Transistor Driver  
- **Input Voltage (Max):** 35V  
- **Input Voltage (Min):** 10V  
- **Switching Frequency:** Up to 500kHz  
- **Current - Supply:** 4mA  

### **Descriptions:**
- The UC3853NG4 is designed for high-performance power factor correction applications.  
- It provides average current-mode control for improved power factor and reduced harmonic distortion.  
- Suitable for boost, flyback, and buck-boost PFC topologies.  

### **Features:**
- **Average Current Mode Control** for precise PFC regulation.  
- **Programmable Oscillator Frequency** up to 500kHz.  
- **Low Start-Up Current** (150µA typical).  
- **Overvoltage Protection (OVP)** and **Undervoltage Lockout (UVLO)**.  
- **Soft-Start Function** for controlled startup.  
- **Zero Current Detection (ZCD)** for discontinuous conduction mode (DCM) operation.  
- **Peak Current Limiting** for protection.  

This IC is commonly used in AC/DC power supplies, industrial systems, and lighting applications requiring power factor correction.

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