UCC3818N - Unitrode

Manufacturer Part Number

UCC3818N

Manufacturer

Texas Instruments

Introduction

UCC3818N is a Power Factor Correction (PFC) controller IC designed for power supplies.

Product Features and Performance

Average Current mode PFC controller

Wide frequency switching range: 6kHz to 220kHz

Low startup current: 150 µA

Voltage supply range: 12V to 17V

Operating Temperature range: 0°C to 70°C

Through Hole mounting

Product Advantages

Improves power supply efficiency by shaping the input current to be in phase with the input voltage

Provides flexibility in design due to wide switching frequency

Key Technical Parameters

Frequency - Switching: 6kHz ~ 220kHz

Current - Startup: 150 µA

Voltage - Supply: 12V ~ 17V

Operating Temperature: 0°C ~ 70°C

Quality and Safety Features

Built-in soft-start feature limits inrush current

Over-voltage, under-voltage, and over-current protection

Compatibility

Compatible with 16-PDIP mounting and packaging standards

Application Areas

AC-DC power supplies

Switched-mode power supplies

Power supply units for desktops, servers, and telecommunication equipment

Product Lifecycle

Last Time Buy status: product is nearing end of life, with replacements or upgrades possibly available

Several Key Reasons to Choose This Product

Average current mode control provides inherent line voltage feed-forward compensation

Versatile switching frequency allows for optimized transformer and filter component design

Robust protection features ensure long-term reliability

Thorough documentation and support from Texas Instruments

Enhancement of power system performance through efficient power factor correction