UC3843BD1R2 - onsemi

Manufacturer Part Number

UC3843BD1R2

Manufacturer

onsemi

Introduction

High-performance current mode PWM controller

Product Features and Performance

Current mode operation

Wide operating voltage range: 7.6V to 30V

High maximum duty cycle: 96%

Supports boost and flyback topologies

Able to drive transistor for power conversion

Maximum switching frequency up to 500kHz

Suitable for positive output configurations

Capable of isolation in output setup

Product Advantages

Flexible design for versatile applications

High efficiency due to current mode control

Ease of use in various power supply designs

Key Technical Parameters

Function: Step-Up, Step-Up/Step-Down

Output Configuration: Positive, Isolation Capable

Topology: Boost, Flyback

Number of Outputs: 1

Output Phases: 1

Voltage - Supply (Vcc/Vdd): 7.6V ~ 30V

Frequency - Switching: Up to 500kHz

Duty Cycle (Max): 96%

Synchronous Rectifier: No

Control Features: Frequency Control

Operating Temperature: 0°C ~ 70°C

Quality and Safety Features

Industry-standard 8-SOIC package for reliable soldering and board mounting

Compatibility

Designed for surface mount technology (SMT) applications

Application Areas

Switching power supplies

DC/DC converters

Power management for consumer, industrial, and telecommunication

Product Lifecycle

Obsolete status

Potential need for finding replacements or planning for last-time buys

Several Key Reasons to Choose This Product

Proven reliability from manufacturer onsemi

High efficiency for power management

Versatile applications ranging from consumer electronics to industrial power systems

Ability to optimize for specific application needs with adjustable frequency control

Simplicity in PCB design due to the Surface Mount 8-SOIC package