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UCC2891PWR from TI/BB,Texas Instruments

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UCC2891PWR

Manufacturer: TI/BB

Current Mode Active Clamp PWM Controller

Partnumber Manufacturer Quantity Availability
UCC2891PWR TI/BB 44 In Stock

Description and Introduction

Current Mode Active Clamp PWM Controller The UCC2891PWR is a phase-shifted full-bridge PWM controller manufactured by Texas Instruments (TI) and Burr-Brown (BB). Below are its key specifications, descriptions, and features:

### **Specifications:**
- **Manufacturer:** Texas Instruments (TI)/Burr-Brown (BB)  
- **Package:** TSSOP-20 (PWR)  
- **Operating Temperature Range:** -40°C to +85°C  
- **Supply Voltage (VCC):** 15V (max)  
- **Switching Frequency:** Adjustable up to 1MHz  
- **Output Drive Current:** ±2A (peak)  
- **Duty Cycle Range:** 0% to 100%  
- **Control Method:** Voltage-mode PWM with phase-shifted full-bridge topology  

### **Descriptions:**
The UCC2891PWR is a high-performance phase-shifted full-bridge PWM controller designed for efficient power conversion in applications like telecom, industrial, and computing power supplies. It provides precise control for zero-voltage switching (ZVS) topologies, reducing switching losses and improving efficiency.

### **Features:**
- **Phase-Shifted Full-Bridge Control:** Enables ZVS operation for reduced switching losses.  
- **Programmable Dead-Time Control:** Optimizes efficiency by adjusting dead time between switches.  
- **Voltage-Mode Control:** Simplifies loop compensation.  
- **Adjustable Switching Frequency:** Up to 1MHz for flexible design.  
- **Soft-Start Function:** Prevents inrush current during startup.  
- **Overcurrent Protection:** Enhances system reliability.  
- **Synchronization Capability:** Allows external clock synchronization.  
- **Low Startup Current:** Minimizes power consumption during startup.  

This information is strictly based on the manufacturer's datasheet.

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