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UCC3819AD from TEXAS

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UCC3819AD

Manufacturer: TEXAS

BiCMOS Power Factor Preregulator

Partnumber Manufacturer Quantity Availability
UCC3819AD TEXAS 2480 In Stock

Description and Introduction

BiCMOS Power Factor Preregulator The UCC3819AD is a power factor correction (PFC) controller manufactured by Texas Instruments. Below are its specifications, descriptions, and features based on Ic-phoenix technical data files:

### **Specifications:**
- **Manufacturer:** Texas Instruments  
- **Category:** PMIC - Power Factor Correction  
- **Series:** UCC3819  
- **Package:** SOIC-16  
- **Operating Temperature:** -40°C to +85°C  
- **Mounting Type:** Surface Mount  
- **Output Type:** Transistor Driver  
- **Input Voltage (Max):** 18V  
- **Input Voltage (Min):** 10V  
- **Switching Frequency:** 250kHz (Max)  

### **Descriptions:**
The UCC3819AD is a high-performance, average-current-mode PFC controller designed for AC/DC power supplies. It provides power factor correction by shaping the input current waveform to match the input voltage waveform, improving efficiency and reducing harmonic distortion.  

### **Features:**
- **Average Current Mode Control:** Ensures low distortion and high power factor.  
- **Programmable Switching Frequency:** Up to 250kHz.  
- **Low Startup Current:** Typically 50µA.  
- **Overvoltage Protection (OVP):** Prevents output overvoltage conditions.  
- **Undervoltage Lockout (UVLO):** Ensures proper operation within voltage range.  
- **Soft-Start Function:** Reduces inrush current during startup.  
- **Zero Current Detection (ZCD):** For discontinuous conduction mode (DCM) operation.  
- **Peak Current Limiting:** Protects against excessive current.  

This information is strictly factual and derived from the manufacturer's datasheet.

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