UC2851DW - Unitrode

Manufacturer Part Number

UC2851DW

Manufacturer

Texas Instruments

Introduction

UC2851DW is a sophisticated Power Management Integrated Circuit (PMIC) from Texas Instruments, designed for AC DC converters and offline switches. It is optimized for applications requiring efficient power conversion methodologies like boost, buck, flyback, and forward topologies.

Product Features and Performance

Advanced control features including frequency control and soft start.

Supports a wide range of supply voltages from 7.8V to 32V.

Capable of switching frequencies up to 500kHz.

Does not contain an internal switch, providing flexibility in design.

Duty cycle of up to 50%, allowing efficient power management.

Offers fault protection mechanisms such as current limiting and overvoltage protection.

Product Advantages

Wide voltage supply range ensures compatibility with various power sources.

High switching frequency permits smaller component sizes, reducing overall footprint.

Flexible control features enable precise management of power conversion processes.

Enhanced safety features protect against fault conditions, increasing reliability.

Key Technical Parameters

Voltage Start Up: 8V

Voltage Supply (Vcc/Vdd): 7.8V ~ 32V

Duty Cycle: 50%

Frequency Switching: Up to 500kHz

Operating Temperature: -40°C ~ 85°C (TA)

Package: 18-SOIC

Quality and Safety Features

Current limiting and overvoltage protection enhance the safety and longevity of the device.

Operates across a wide temperature range, ensuring stability and performance under varying conditions.

Compatibility

Its versatile design and wide operating voltage range make it compatible with a broad spectrum of AC DC converters and offline switch applications.

Application Areas

Power supplies

Portable electronics

Industrial control systems

Renewable energy converters

Medical devices

Product Lifecycle

The UC2851DW is currently in active production.

No indication of nearing discontinuation, ensuring long-term availability.

Texas Instruments typically offers support for product replacements or upgrades.

Several Key Reasons to Choose This Product

High efficiency and flexibility in power management design.

Robust fault protection features ensure the reliability of the device in critical applications.

Versatile application across multiple industries due to its wide voltage range and high switching frequency.

Supported by Texas Instruments' reputation for quality and longevity in the semiconductor industry.

Future-proof choice with no current indications of discontinuation and company support for upgrades.