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UC3875 from TI,Texas Instruments

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UC3875

Manufacturer: TI

Phase Shift Resonant Controller

Partnumber Manufacturer Quantity Availability
UC3875 TI 4 In Stock

Description and Introduction

Phase Shift Resonant Controller The UC3875 is a phase-shifted PWM controller manufactured by Texas Instruments (TI). Below are the specifications, descriptions, and features based on the factual information from Ic-phoenix technical data files:  

### **Specifications:**  
- **Control Method:** Phase-Shifted PWM  
- **Operating Frequency:** Up to 2 MHz  
- **Input Voltage Range:** 10V to 20V (VCC)  
- **Output Drive Current:** 2A (peak)  
- **Duty Cycle Range:** 0% to 100%  
- **Soft-Start Capability:** Yes  
- **Undervoltage Lockout (UVLO):** Yes  
- **Operating Temperature Range:** -40°C to +85°C  
- **Package Options:** DIP-20, SOIC-20  

### **Descriptions:**  
The UC3875 is designed for high-frequency, high-efficiency power conversion applications, particularly in full-bridge and half-bridge topologies. It provides phase-shifted control to reduce switching losses and improve efficiency. The device includes features like programmable dead-time, soft-start, and fault protection.  

### **Features:**  
- **Phase-Shifted Control:** Enables zero-voltage switching (ZVS) for reduced switching losses.  
- **Adjustable Dead-Time:** Allows optimization of switching transitions.  
- **Programmable Oscillator:** Supports frequency adjustment via external components.  
- **Soft-Start:** Prevents inrush current during startup.  
- **Fault Protection:** Includes overcurrent and undervoltage lockout (UVLO).  
- **Synchronous Rectifier Control:** Supports secondary-side regulation.  
- **High-Current Output Drivers:** Capable of driving MOSFETs and IGBTs directly.  

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

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