UC2843BD1 - onsemi

Manufacturer Part Number

UC2843BD1

Manufacturer

onsemi

Introduction

The UC2843BD1 is a high-performance PWM controller designed for DC-DC switching power supplies.

Product Features and Performance

High performance pulse width modulation controller

Step-Up and Step-Up/Step-Down functions

Positive output with isolation capability

Suitable for Boost and Flyback topologies

Single output with one output phase

Supports a wide operating voltage range, 7.6V to 30V

High switching frequency up to 500kHz

Maximum duty cycle of 96%

Frequency control for optimized system performance

Product Advantages

Ability to drive a power transistor directly

Flexible design catering to different power topologies

Broad voltage operating range accommodating various applications

High frequency operation enabling smaller passive components

Key Technical Parameters

Output Type: Transistor Driver

Topology: Boost, Flyback

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

Frequency - Switching: Up to 500kHz

Duty Cycle (Max): 96%

Operating Temperature: -25°C ~ 85°C

Quality and Safety Features

Designed to meet stringent power management requirements

Reliable operation in a wide temperature range

Compatibility

Compatible with various step-up and step-up/step-down power supply designs

Flexible to integrate with different peripheral components

Application Areas

Power supply modules

Telecommunication equipment

Consumer electronics

Industrial control systems

Product Lifecycle

Status: Obsolete

Customers may need to seek replacements or consider latest upgraded models

Several Key Reasons to Choose This Product

High integration facilitating compact design

Efficiency in handling a wide range of input voltages

Tailored for a variety of power applications due to its flexible features

Robust performance in challenging temperature conditions

High switching frequency leading to faster response and smaller size components