UC3845DR2G - onsemi

Manufacturer Part Number

UC3845DR2G

Manufacturer

onsemi

Introduction

UC3845DR2G is a high-performance fixed-frequency current-mode controller used for power management applications, particularly in DC to DC switching converters.

Product Features and Performance

Boost and Flyback Topology Support

Single Output Transistor Driver

Capable of Positive Output Configuration with Isolation

Fixed-Frequency Current-Mode Control for Improved Response

Up to 500kHz Switching Frequency

Maximum 48% Duty Cycle

Designed for 7.6V to 30V Supply Voltage Operations

Operating Temperature Range 0°C to 70°C

Product Advantages

High Efficiency for Power Conversion

Improved Noise Immunity due to Current-Mode Control

Support for a Variety of Topologies Enhancing Design Flexibility

Key Technical Parameters

Output Type: Transistor Driver

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

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

Frequency - Switching: Up to 500kHz

Duty Cycle (Max): 48%

Operating Temperature: 0°C ~ 70°C

Quality and Safety Features

Industry-Standard SOIC-14 Package for Reliability

Compliance with Regulatory Standards for Power Systems

Compatibility

Supports Multiple Topologies, Including Boost and Flyback

Suitable for General Power Conversion Circuits

Application Areas

Switching Power Supplies

Power Management Modules

DC-DC Converters

Industrial Power Systems

Product Lifecycle

Obsolete Status - Check for Replacement Models

Next-Generation Product or Solution Availability

Several Key Reasons to Choose This Product

Versatile Functionality in Power Conversion Applications

High Switching Frequency Allowing for Smaller Peripheral Components

Current-Mode Control Leading to Stable Operation in Varied Conditions

Widely Recognized by Power Electronics Engineers

Simplified Circuit Design Due to Integration of Multiple Functions