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UCC3818AD from TI&BB,Texas Instruments

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UCC3818AD

Manufacturer: TI&BB

BiCMOS Power Factor Preregulator

Partnumber Manufacturer Quantity Availability
UCC3818AD TI&BB 1 In Stock

Description and Introduction

BiCMOS Power Factor Preregulator The UCC3818AD is a BiCMOS advanced PWM controller manufactured by Texas Instruments (TI) and Burr-Brown (BB).  

### **Specifications:**  
- **Topology:** Current-mode PWM controller  
- **Operating Frequency:** Up to 1 MHz  
- **Supply Voltage (VCC):** 10V to 16V (max 18V)  
- **Output Drive Current:** ±2A (peak)  
- **Duty Cycle Range:** 0% to 100%  
- **Soft-Start Control:** Adjustable  
- **Error Amplifier Bandwidth:** 5 MHz  
- **Propagation Delay:** 50 ns  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package:** SOIC-8  

### **Descriptions:**  
The UCC3818AD is a high-performance current-mode PWM controller optimized for DC-DC power conversion. It features fast response, high-frequency operation, and precise duty cycle control. It includes an error amplifier, oscillator, PWM comparator, and high-current totem-pole output drivers.  

### **Features:**  
- **Current-Mode Control:** Improved loop response and simplified compensation  
- **Programmable Oscillator:** Adjustable frequency via external components  
- **Undervoltage Lockout (UVLO):** Ensures proper startup  
- **Soft-Start:** Reduces inrush current  
- **Synchronization Capability:** Allows external clock synchronization  
- **High-Speed Error Amplifier:** Enhances transient response  
- **Low Power Consumption:** Optimized for efficiency  

This controller is commonly used in switch-mode power supplies (SMPS), DC-DC converters, and power management applications.

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