UC2843BDR2G - onsemi

Manufacturer Part Number

UC2843BDR2G

Manufacturer

onsemi

Introduction

The UC2843BDR2G is a high-performance, fixed-frequency current-mode PWM controller.

Product Features and Performance

Fixed Frequency Current-Mode PWM Controller

High Output Drive Capability

Low Startup and Operating Current

Trimmed Oscillator Discharge Current

Automatic Feed Forward Compensation

Pulse-by-Pulse Current Limiting

Enhanced Load Response Characteristics

Under-Voltage Lockout with Hysteresis

Double Pulse Suppression

Product Advantages

Highly Efficient Power Conversion

Flexible Design for Multiple Topologies

Robust Output Drive Features

Improved Performance for Load Transients

Protection Features Enhance System Safety

Low Power Consumption Improves System Efficiency

Key Technical Parameters

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

Frequency - Switching: Up to 500kHz

Duty Cycle (Max): 96%

Number of Outputs: 1

Output Phases: 1

Output Type: Transistor Driver

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

Output Configuration: Positive, Isolation Capable

Topology: Boost, Flyback

Quality and Safety Features

Under-Voltage Lockout with Hysteresis

Current Limiting for Protection

Oscillator Frequency Precision

Compatibility

Compatible with Various Switching Topologies

Suitable for Surface Mount Technology (SMT)

Application Areas

Power Supply Modules

DC-DC Converters

Battery Chargers

LED Drivers

Telecommunication Equipment

Product Lifecycle

Active Product Status

Not Indicated as Near Discontinuation

Several Key Reasons to Choose This Product

Precision in PWM Control for Efficient Power Conversion

Broad Supply Voltage Range Allows for Versatility in Applications

High Switching Frequency Enables Compact Power Supply Design

Industry-Standard Package for Simplified Integration

Robust Protection Features Ensures Long-term Reliability

Well-suited for Complex Multi-Topology Power Systems

Onsemi's Reputation for Quality and Long-term Supply Availability