UC3842DTR - Texas Instruments

Manufacturer Part Number

UC3842DTR

Manufacturer

Texas Instruments

Introduction

The UC3842DTR is a high-performance, low-cost, current-mode PWM controller intended for use in off-line and DC-DC converter applications.

Product Features and Performance

Designed for high-frequency, high-efficiency power supply control

Provides pulse-width modulation control of a power switch

Operates with supply voltages from 12V to 28V

Switching frequency up to 500kHz

Supports various topologies including boost, buck, buck-boost, flyback, and forward

Provides step-up, step-down, and step-up/step-down functions

Frequency control feature

Maximum duty cycle of 97%

Single-output design

Product Advantages

High-performance control for efficient power conversion

Wide range of supported topologies and functions

High-frequency operation for compact power supply designs

Simple and cost-effective solution

Key Technical Parameters

Input voltage range: 12V to 28V

Switching frequency: Up to 500kHz

Maximum duty cycle: 97%

Output configuration: Positive, isolation capable

Number of outputs: 1

Quality and Safety Features

RoHS3 compliant

Suitable for surface mount applications

Compatibility

Compatible with a wide range of power supply designs and applications

Application Areas

Off-line and DC-DC converter applications

High-frequency, high-efficiency power supply control

Product Lifecycle

The UC3842DTR is an active product and is not nearing discontinuation.

Replacements and upgrades may be available from Texas Instruments.

Key Reasons to Choose This Product

High-performance, cost-effective control solution for efficient power conversion

Wide range of supported topologies and functions for flexible design

High-frequency operation for compact and efficient power supply designs

Simple and easy-to-use integrated circuit for straightforward implementation