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UCC3818PWTR G4 from TI,Texas Instruments

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16.113ms

UCC3818PWTR G4

Manufacturer: TI

BiCMOS POWER FACTOR PREREGULATOR

Partnumber Manufacturer Quantity Availability
UCC3818PWTR G4,UCC3818PWTRG4 TI 5000 In Stock

Description and Introduction

BiCMOS POWER FACTOR PREREGULATOR The UCC3818PWTR G4 is a PWM controller manufactured by Texas Instruments (TI). Below are the specifications, descriptions, and features based on factual information:  

### **Specifications:**  
- **Manufacturer:** Texas Instruments (TI)  
- **Part Number:** UCC3818PWTR G4  
- **Type:** Current Mode PWM Controller  
- **Package:** TSSOP-20  
- **Operating Temperature Range:** -40°C to +85°C  
- **Input Voltage Range:** 10V to 22V (VCC)  
- **Output Drive Current:** ±1A (Peak)  
- **Switching Frequency:** Up to 1MHz  
- **Duty Cycle Range:** 0% to 100%  
- **UVLO (Undervoltage Lockout):** 10V (Turn-On), 9V (Turn-Off)  
- **Reference Voltage:** 5V (Precision)  

### **Description:**  
The UCC3818PWTR G4 is a high-performance, current-mode PWM controller designed for offline and DC-DC power supplies. It provides precise regulation with features like soft-start, cycle-by-cycle current limiting, and adjustable oscillator frequency.  

### **Features:**  
- **Current-Mode Control:** Improves transient response and simplifies loop compensation.  
- **Programmable Soft-Start:** Reduces inrush current during startup.  
- **Cycle-by-Cycle Current Limiting:** Enhances system protection.  
- **Adjustable Oscillator Frequency:** Allows flexible design configurations.  
- **Synchronization Capability:** Supports external clock synchronization.  
- **Low Startup Current:** Typically 150µA.  
- **Integrated 5V Reference:** Ensures stable voltage regulation.  
- **TSSOP-20 Package:** Compact footprint for space-constrained applications.  

This information is based on TI's official datasheet and product documentation.

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