L4981A - STMicroelectronics

Manufacturer Part Number

L4981A

Manufacturer

stmicroelectronics

Introduction

The L4981A is a power factor correction (PFC) integrated circuit designed for use in power supplies and other power conversion applications. It features a high-performance average current mode control scheme, which helps to achieve high power factor and low input current distortion.

Product Features and Performance

Average current mode control for high power factor and low input current distortion

Operates at a fixed switching frequency of 100kHz

Startup current of only 100μA

Wide supply voltage range of 14.5V to 19.5V

Operating temperature range of -40°C to 125°C

Through-hole 20-DIP package

Product Advantages

Excellent power factor correction capabilities

High efficiency and low input current distortion

Compact and easy-to-use design

Robust operating temperature range

Key Reasons to Choose This Product

Achieve superior power factor and input current quality

Reliable and stable performance in a wide range of power supply applications

Cost-effective solution for PFC requirements

Proven technology from a trusted semiconductor manufacturer

Quality and Safety Features

Designed and manufactured to high quality standards

Robust thermal and overcurrent protection mechanisms

Compliance with relevant safety and environmental regulations

Compatibility

The L4981A is a power factor correction (PFC) integrated circuit that can be used in a variety of power supply and power conversion applications, including but not limited to:

PC power supplies

Household appliances

Industrial equipment

LED lighting drivers

Solar inverters

Application Areas

Power supplies

Power conversion circuits

PFC (Power Factor Correction) applications

Product Lifecycle

The L4981A is an obsolete product, meaning it is no longer in active production or available for purchase. However, there are alternative and equivalent models available from other semiconductor manufacturers that can provide similar functionality and performance. Customers are advised to contact our website's sales team for more information on available alternatives and to discuss their specific application requirements.