UC3843BDG - onsemi

Manufacturer Part Number

UC3843BDG

Manufacturer

onsemi

Introduction

The UC3843BDG is a high-performance, fixed frequency, current mode control IC designed for use in DC-DC converter applications.

Product Features and Performance

Operates up to 500kHz switching frequency

Supports Boost, Flyback, and Step-Up/Step-Down topologies

Wide input voltage range of 7.6V to 30V

Maximum duty cycle of 96%

Current mode control for improved regulation and dynamic response

Frequency control for output regulation

Product Advantages

Excellent for high frequency, high power density DC-DC converter designs

Provides reliable and stable operation in a variety of power conversion applications

Flexible topology support allows versatile use in different power supply designs

Key Technical Parameters

Input Voltage Range: 7.6V to 30V

Switching Frequency: Up to 500kHz

Maximum Duty Cycle: 96%

Output Configuration: Positive, Isolation Capable

Number of Outputs: 1

Quality and Safety Features

ROHS3 compliant

14-SOIC (0.154", 3.90mm Width) package

Compatibility

Compatible with a variety of power supply designs and applications

Application Areas

Suitable for use in DC-DC converters, switching power supplies, and other power conversion applications

Product Lifecycle

The UC3843BDG is an active product and is not nearing discontinuation.

Replacement or upgraded products may be available in the future.

Key Reasons to Choose This Product

High-performance current mode control for excellent regulation and dynamic response

Wide input voltage range and high switching frequency capability for flexible power conversion designs

Robust and reliable operation in a variety of power supply applications

Compact and easy-to-use 14-SOIC package for space-constrained designs