UC2843BD1G - onsemi

Manufacturer Part Number

UC2843BD1G

Manufacturer

onsemi

Introduction

The UC2843BD1G is a high performance fixed frequency current-mode controller used for DC-DC switching power supplies.

Product Features and Performance

Current-mode operation for improved transient response

High maximum duty cycle of 96%

Suitable for various topologies: Boost, Flyback

Operating frequency up to 500kHz

Operates from 7.6V to 30V supply

Product Advantages

High level of integration for a simplified design

Supports isolated and non-isolated power supply designs

Stable operation with a wide range of inductors and output capacitors

Low external component count

Key Technical Parameters

Output Type: Transistor Driver

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

Output Configuration: Positive, Isolation Capable

Number of Outputs: 1

Output Phases: 1

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

Frequency - Switching: Up to 500kHz

Duty Cycle (Max): 96%

Operating Temperature: -25°C to 85°C

Quality and Safety Features

Extended operating temperature range

Robust construction for long-term reliability

Compatibility

Surface Mount package 8-SOIC compatible with standard PCB manufacturing processes

Application Areas

Switching power supplies for telecommunications, consumer electronics, and industrial applications

Product Lifecycle

Obsolete (Consider looking for current alternatives or consult the manufacturer for last-time buys and replacement parts)

Several Key Reasons to Choose This Product

Fixed frequency current-mode control for consistent performance

High efficiency with 96% maximum duty cycle

Flexible design suitable for a wide range of applications

Up to 500kHz switching frequency enabling compact power supply design

Reliable operation in a -25°C to 85°C temperature range