UC3843BD - onsemi

Manufacturer Part Number

UC3843BD

Manufacturer

onsemi

Introduction

UC3843BD is an integrated circuit designed for DC-DC switching power supply applications.

Product Features and Performance

Configurable for step-up or step-up/step-down applications

Isolation-capable output configuration

Supports boost and flyback topologies

Operates at a switching frequency of up to 500kHz

Can achieve a maximum duty cycle of 96%

Features frequency control for enhanced performance

Product Advantages

High-frequency operation reduces the size of passive components

High duty cycle capability allows for efficient power conversion

Versatility in application with configurable topologies

Support for isolated power supply designs

Key Technical Parameters

Output Type: Transistor Driver

Topology: Boost, Flyback

Number of Outputs: 1

Output Phases: 1

Voltage Supply (Vcc/Vdd): 7.6V to 30V

Frequency Switching: Up to 500kHz

Duty Cycle (Max): 96%

Synchronous Rectifier: No

Operating Temperature: 0°C to 70°C

Quality and Safety Features

Built-in protection and control features

Compliant with industry-standard quality norms

Compatibility

14-SOIC package compatible with standard surface mount processes

Application Areas

Power supply modules

DC-DC converters

Isolated and non-isolated power supplies

Product Lifecycle

Product Status: Obsolete

Information on replacements or upgrades may be available from onsemi

Several Key Reasons to Choose This Product

High-efficiency potential due to high switching frequency

Flexibility in design for a variety of power supply circuits

Suitable for applications requiring isolation

IC tailored for cost-sensitive power conversion applications