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UCC2893 from TI,Texas Instruments

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UCC2893

Manufacturer: TI

Current Mode Active Clamp PWM Controller

Partnumber Manufacturer Quantity Availability
UCC2893 TI 23 In Stock

Description and Introduction

Current Mode Active Clamp PWM Controller The UCC2893 is a high-performance phase-shifted full-bridge PWM controller manufactured by Texas Instruments (TI). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Input Voltage Range:** 8.5V to 18V (VDD)  
- **Operating Frequency Range:** Up to 1MHz  
- **Output Drive Current:** ±4A (peak)  
- **Duty Cycle Range:** 0% to 100%  
- **Soft-Start Time:** Programmable  
- **Operating Temperature Range:** -40°C to +125°C  
- **Package Type:** SOIC-20, TSSOP-20  

### **Descriptions:**
The UCC2893 is designed for phase-shifted full-bridge (PSFB) DC-DC converters, providing advanced control for high-efficiency power supplies. It supports zero-voltage switching (ZVS) to minimize switching losses and improve efficiency. The controller includes adaptive delay control, programmable dead-time, and soft-start functionality.

### **Features:**
- **Phase-Shifted Full-Bridge Control:** Enables ZVS operation for reduced switching losses.  
- **Adaptive Delay Control:** Optimizes dead time for efficiency.  
- **Programmable Soft-Start:** Prevents inrush current.  
- **Bidirectional Synchronous Rectifier Control:** Supports secondary-side MOSFETs.  
- **Voltage-Mode and Current-Mode Control:** Flexible design options.  
- **Overcurrent Protection (OCP):** Enhances system reliability.  
- **Under-Voltage Lockout (UVLO):** Ensures safe operation.  
- **Adjustable Switching Frequency:** Up to 1MHz.  

This information is sourced from the official Texas Instruments datasheet for the UCC2893.

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