UCC2809D-1 - Texas Instruments

Manufacturer Part Number

UCC2809D-1

Manufacturer

Texas Instruments

Introduction

Low Power BiCMOS Current-Mode PWM Controller

Product Features and Performance

BiCMOS technology

Low startup and operating currents

Suitable for battery-operated applications

1MHz frequency switching capability

Boost, Flyback, Forward topologies supported

70% maximum duty cycle

Soft start function

Frequency control feature

Product Advantages

High performance at low power

Energy efficient operation

High switching frequency enabling compact design

Minimal external components required

Key Technical Parameters

Topology: Boost, Flyback, Forward

Start-Up Voltage: 10 V

Supply Voltage (Vcc/Vdd): 8V to 19V

Duty Cycle: Up to 70%

Switching Frequency: 1MHz

Operating Temperature Range: -55°C to 150°C

Quality and Safety Features

Built-in frequency jitter

Over-current protection not specified

Extended temperature range

Compatibility

Compatible with various transformer and inductor-based topologies

Suitable for surface mount technology (SMT) with 8-SOIC package

Application Areas

Power supplies

Portable and battery-powered equipment

Telecommunication infrastructure

Consumer electronics

Distributed power systems

Product Lifecycle

Product Status: Active

Not facing discontinuation

Replacements or upgrades may be available in Texas Instruments' portfolio

Several Key Reasons to Choose This Product

High-frequency operation for reduced transformer size

Low consumption improving battery life in portable applications

Versatile usage across boost, flyback, and forward converter designs

Robust temperature performance for high-reliability applications

Industry-leading semiconductor manufacturer with support and resources