UCC3802N - Unitrode

Manufacturer Part Number

UCC3802N

Manufacturer

Texas Instruments

Introduction

The UCC3802N is a low-power, biCMOS current-mode PWM controller from Texas Instruments.

Product Features and Performance

BiCMOS current-mode PWM control

Supports Boost, Buck, Flyback, and Forward topologies

Operates at switching frequencies of up to 1MHz for flexibility in power supply design

Energy-efficient operation with a start-up voltage of only 12.5V

Vcc operating range from 8.3V to 12V suits a variety of applications

Maximum duty cycle of 99% allows precise control over output

Current limiting feature enhances protection against overcurrent conditions

Frequency control functionality for managing EMI and optimizing the transformer design

Functions optimally within a wide temperature range of -40°C to 85°C

Product Advantages

High-frequency operation allows use of smaller passive components

Versatile power supply design capabilities with multiple topologies supported

Protection features such as current limiting to prevent damage

Key Technical Parameters

Start Up Voltage: 12.5V

Supply Voltage (Vcc/Vdd): 8.3V to 12V

Duty Cycle: 99%

Switching Frequency: Up to 1MHz

Operating Temperature: -40°C to 85°C

Quality and Safety Features

Integrated current limiting for safe operation

Reliable performance across a broad temperature range

Compatibility

Suitable for designing a variety of power systems with its multi-topology support

Application Areas

Power supplies for consumer electronics

Telecom power systems

Industrial power supplies

Automotive electronics

Product Lifecycle

Obsolete product with potential issues in availability

Consider looking for replacement or upgrade options

Several Key Reasons to Choose This Product

Trusted manufacturer with a history of reliability in power management solutions

Flexible usage due to high switching frequency and support for numerous topologies

Energy-efficient operation with low start-up voltage

Robust safety features including current limiting

High duty cycle delivering precise power supply control