UC3843BD1 - onsemi

Manufacturer Part Number

UC3843BD1

Manufacturer

onsemi

Introduction

The UC3843BD1 is a highly integrated DC-DC switching controller designed for power management applications, capable of driving a transistor for stepping up, stepping down, or inverting voltage configurations.

Product Features and Performance

Operates as a transistor driver

Functions include Step-Up and Step-Up/Step-Down

Output Configuration: Positive, Isolation Capable

Topology includes Boost and Flyback

Supports one output with a single phase

Frequency switching up to 500 kHz

Maximum duty cycle of 96%

Product Advantages

High switching frequency allows for reduced size of external components

Capable of handling wide voltage supply range from 7.6V to 30V

Efficiency enhanced by high maximum duty cycle

Capability of isolation in output configuration promotes versatility in application

Key Technical Parameters

Voltage Supply: 7.6V ~ 30V

Frequency Switching: Up to 500kHz

Duty Cycle (Max): 96%

Operating Temperature: 0°C ~ 70°C

Quality and Safety Features

Designed to operate within a safe temperature range ensuring reliability and longevity of the component

Constructed for surface mount technology promoting robustness in physical assembly

Compatibility

Compatible in applications requiring voltage step-up, step-down, or an inverting setup with isolation capabilities

Mounting Type: Surface Mount ensuring compatibility with modern PCB technologies

Application Areas

Power supply modules

Battery operated devices

Renewable energy systems

Portable electronics

Product Lifecycle

Product Status: Obsolete

Replacement or upgrade options should be considered due to discontinuation

Several Key Reasons to Choose This Product

Versatile with multiple topologies (Boost, Flyback) and functionalities (Step-Up, Step-Up/Step-Down)

High efficiency ensured by a high duty cycle and switching frequency

Supports a wide range of input voltages making it suitable for various applications

Safe to use within specified operating temperatures and mounting configurations

Useful for designs requiring isolation in the output configuration