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UCC3819D from TI,Texas Instruments

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UCC3819D

Manufacturer: TI

PROGRAMMABLE OUTPUT POWER FACTOR PREREGULATOR

Partnumber Manufacturer Quantity Availability
UCC3819D TI 2218 In Stock

Description and Introduction

PROGRAMMABLE OUTPUT POWER FACTOR PREREGULATOR The UCC3819D is a power factor correction (PFC) controller manufactured by Texas Instruments (TI). Below are its specifications, descriptions, and features based on factual information from Ic-phoenix technical data files:

### **Specifications:**
- **Manufacturer:** Texas Instruments (TI)  
- **Category:** PMIC - Power Factor Correction (PFC) Controllers  
- **Package:** SOIC-16  
- **Operating Temperature:** -40°C to 85°C  
- **Supply Voltage (VCC):** 12V to 17.5V (typical)  
- **Switching Frequency:** Adjustable (typically up to 250kHz)  
- **Output Current:** 1.5A (peak gate drive)  
- **Control Method:** Average Current Mode Control  

### **Descriptions:**
The UCC3819D is a high-performance PFC controller designed for power supply applications requiring power factor correction. It operates in continuous conduction mode (CCM) and employs average current mode control to achieve near-unity power factor. The device is optimized for boost converter topologies and includes features for reliable and efficient PFC operation.

### **Features:**
- **Average Current Mode Control:** Ensures low distortion input current.  
- **Programmable Switching Frequency:** Allows flexibility in design.  
- **Peak Current Limiting:** Protects against overcurrent conditions.  
- **Undervoltage Lockout (UVLO):** Ensures proper startup and shutdown.  
- **Soft-Start Function:** Reduces inrush current during startup.  
- **Low Start-Up Current:** Typically 150µA.  
- **High-Current Totem Pole Output:** 1.5A peak gate drive for MOSFET switching.  
- **Zero Current Detector (ZCD):** Ensures proper timing in discontinuous conduction mode (DCM).  
- **Overvoltage Protection (OVP):** Protects against output overvoltage conditions.  

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

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