UC2843BD - onsemi

Manufacturer Part Number

UC2843BD

Manufacturer

onsemi

Introduction

High-performance, fixed-frequency pulse-width modulation (PWM) control integrated circuit (IC) designed for off-line and dc-to-dc power supply control applications

Product Features and Performance

Wide input voltage range: 7.6V to 30V

Up to 500kHz switching frequency

Capable of controlling boost, flyback, and other topologies

Internal reference and oscillator

Frequency compensation pins for loop stability

Soft-start function

Undervoltage lockout (UVLO) protection

Thermal shutdown protection

Product Advantages

Provides high-quality power conversion

Offers flexible control capabilities

Includes key protection features for reliable operation

Key Technical Parameters

Input Voltage Range: 7.6V to 30V

Switching Frequency: Up to 500kHz

Maximum Duty Cycle: 96%

Output Configuration: Positive, Isolation Capable

Operating Temperature Range: -25°C to 85°C

Quality and Safety Features

Thermal shutdown protection

Undervoltage lockout (UVLO) protection

Compatibility

Suitable for use in a variety of power supply and control applications

Application Areas

Off-line power supplies

DC-to-DC power converters

Battery chargers

Motor drives

Other power conversion and control applications

Product Lifecycle

This product is currently available and not nearing discontinuation.

Replacement or upgrade options may be available from the manufacturer.

Several Key Reasons to Choose This Product

Wide input voltage range for flexible design

High switching frequency capability for compact power supply design

Comprehensive protection features for reliable operation

Flexible control capabilities for various power conversion topologies

Proven performance and reliability from a reputable manufacturer