TOP258LN - Power Integrations

Manufacturer Part Number

TOP258LN

Manufacturer

power-integrations

Introduction

The TOP258LN is a highly integrated, energy-efficient offline switch-mode power supply controller from Power Integrations. It is designed for use in isolated flyback power supplies with an output power up to 122 watts. The device integrates a high-voltage power MOSFET, PWM control, fault protection, and other critical components onto a single chip, simplifying the design and reducing component count.

Product Features and Performance

Integrated 700V power MOSFET

Operates at 66kHz or 132kHz switching frequency

Patented EcoSmart™ technology for high efficiency

Built-in current limiting, over-temperature, and over-voltage protection

Programmable output power up to 122 watts

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

Product Advantages

Highly integrated design reduces component count and simplifies power supply layout

Meets stringent energy efficiency standards

Robust protection features ensure reliable and safe operation

Flexible switching frequency options for optimization

Key Reasons to Choose This Product

Delivers high power output in a compact package

Optimizes efficiency and thermal performance

Provides comprehensive protection against fault conditions

Proven reliability and long-term performance

Quality and Safety Features

Complies with safety standards such as UL, IEC, and EN

RoHS and REACH compliant for environmental responsibility

Rigorous quality control and testing procedures

Compatibility

The TOP258LN is compatible with a wide range of power supply designs and applications, including:

Adapters and chargers for consumer electronics

Industrial and medical equipment power supplies

Lighting ballasts and LED drivers

Application Areas

Isolated AC-DC power supplies

Offline switch-mode power supplies

Flyback converter designs up to 122 watts

Product Lifecycle

The TOP258LN is considered an obsolete product, meaning it is no longer in active production. However, Power Integrations may have alternative or equivalent models available that can provide similar functionality and performance. Customers are advised to contact our website's sales team for more information on suitable replacement options.