UC3843BNG - onsemi

Manufacturer Part Number

UC3843BNG

Manufacturer

onsemi

Introduction

The UC3843BNG is a high-performance fixed frequency current-mode controller for off-line and DC-to-DC converter applications.

Product Features and Performance

Current-mode operation for improved transient response, fixed frequency operation, optimized for low power loss, high current totem-pole output for driving a power MOSFET, and under-voltage lockout with hysteresis.

Product Advantages

Enhanced system reliability, improved response to load changes, compatible with a variety of power topologies, and optimized for efficient power conversion.

Key Technical Parameters

Supply Voltage: 7.6V to 30V

Switching Frequency: Up to 500kHz

Duty Cycle (Max): 96%

Output Type: Transistor Driver

Topology: Boost, Flyback

Number of Outputs: 1

Output Phases: 1

Operating Temperature: 0°C ~ 70°C

Mounting Type: Through Hole

Quality and Safety Features

Under-voltage lockout with hysteresis for stable operation.

Compatibility

Versatile control features compatible with various converter designs

Application Areas

Suitable for power supplies in consumer and industrial electronics, telecommunication devices, and computer systems.

Product Lifecycle

Active status; ongoing production without reported obsolescence or end-of-life.

Several Key Reasons to Choose This Product

Reliable current-mode control method, flexibility in power conversion topology, efficiency optimizing features, wide range of operating voltage, high switching frequency supporting compact designs, ease of implementation in various applications.