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UCC2818 from TI,Texas Instruments

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UCC2818

Manufacturer: TI

BiCMOS Power Factor Preregulator

Partnumber Manufacturer Quantity Availability
UCC2818 TI 16 In Stock

Description and Introduction

BiCMOS Power Factor Preregulator The UCC2818 is a high-performance, current-mode PWM controller manufactured by Texas Instruments (TI). Below are its specifications, descriptions, and features based on Ic-phoenix technical data files:  

### **Specifications:**  
- **Input Voltage Range (VCC):** 8.5V to 17V  
- **Operating Frequency:** Adjustable up to 1MHz  
- **Maximum Duty Cycle:** 100%  
- **Peak Output Current (Source/Sink):** 1A / 1A  
- **Error Amplifier Bandwidth:** 5MHz  
- **Soft-Start Time:** Programmable  
- **UVLO (Undervoltage Lockout):** 8.5V (on), 7.6V (off)  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package Options:** SOIC-8, PDIP-8  

### **Descriptions:**  
The UCC2818 is designed for high-frequency, current-mode power supply applications. It provides precise regulation and protection features, making it suitable for AC/DC and DC/DC converters. The device integrates an oscillator, error amplifier, current-sensing comparator, and a high-current totem-pole output driver.  

### **Features:**  
- **Current-Mode Control:** Improves loop response and simplifies compensation.  
- **Programmable Oscillator:** Allows flexible frequency setting with external components.  
- **Soft-Start Capability:** Reduces inrush current during startup.  
- **Leading-Edge Blanking:** Improves noise immunity in current sensing.  
- **Undervoltage Lockout (UVLO):** Ensures reliable operation under low-voltage conditions.  
- **High-Current Output Driver:** Supports fast switching of power MOSFETs.  
- **Wide Operating Temperature Range:** Suitable for industrial applications.  

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

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