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UCC2891PWG4 from TI/BB,Texas Instruments

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UCC2891PWG4

Manufacturer: TI/BB

Current Mode Active Clamp PWM Controller 16-TSSOP -40 to 85

Partnumber Manufacturer Quantity Availability
UCC2891PWG4 TI/BB 370 In Stock

Description and Introduction

Current Mode Active Clamp PWM Controller 16-TSSOP -40 to 85 The UCC2891PWG4 is a phase-shifted full-bridge controller manufactured by Texas Instruments (TI) and Burr-Brown (BB).  

### **Specifications:**  
- **Topology:** Phase-shifted full-bridge PWM controller  
- **Input Voltage Range:** 4.5V to 12V  
- **Operating Frequency Range:** Up to 1MHz  
- **Output Drive Current:** ±2A (peak)  
- **Duty Cycle Range:** 0% to 100%  
- **Switching Frequency:** Adjustable via external components  
- **Package:** TSSOP-20 (PWG4)  
- **Operating Temperature Range:** -40°C to +125°C  

### **Descriptions & Features:**  
- Designed for high-efficiency, high-power applications  
- Provides adaptive delay control for zero-voltage switching (ZVS)  
- Includes programmable dead time for shoot-through protection  
- Features soft-start and soft-stop functionality  
- Supports voltage-mode and current-mode control  
- Includes under-voltage lockout (UVLO) protection  
- Synchronization capability for multi-phase operation  
- Low startup current (typically 150µA)  

This controller is commonly used in telecom, industrial, and server power supplies.

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