L5991D -

Manufacturer Part Number

L5991D

Manufacturer

stmicroelectronics

Introduction

The L5991D is a high-performance, highly integrated offline power converter IC from STMicroelectronics. It is designed for a wide range of power conversion applications, including AC/DC adapters, industrial power supplies, and battery chargers.

Product Features and Performance

High-efficiency boost or flyback topology with up to 1MHz switching frequency

Wide input voltage range of 10V to 20V

High duty cycle of up to 93%

Integrated control features such as frequency control, soft start, and synchronization

Fault protection including current limiting and overvoltage protection

Wide operating temperature range of -40°C to 150°C

Product Advantages

Highly integrated design reduces external component count and simplifies circuit design

High efficiency and switching frequency enable compact and lightweight power supply designs

Robust fault protection features improve system reliability and safety

Key Reasons to Choose This Product

Exceptional performance and efficiency for a wide range of power conversion applications

Versatile design supports both boost and flyback topologies

Comprehensive suite of integrated control and protection features

Proven reliability and safety from a trusted manufacturer

Quality and Safety Features

Rigorous quality control and testing processes

Compliance with relevant safety standards and regulations

Compatibility

The L5991D is compatible with a wide range of power supply and charger designs, making it a versatile choice for various applications.

Application Areas

AC/DC adapters for consumer electronics

Industrial power supplies

Battery chargers for portable devices

Other offline power conversion applications

Product Lifecycle

The L5991D is an active product in our website's sales team's portfolio. There are no known plans for discontinuation at this time. However, customers are advised to check with our website's sales team for the latest product information and availability, as well as potential alternative or equivalent models that may be available.