The TOP261EN is a high-performance integrated power switch from Power Integrations, part of the TOPSwitch-HX family. It is designed for AC-DC power conversion applications, offering energy-efficient solutions for consumer electronics, industrial power supplies, and LED drivers. 

TOP261EN Datasheet PDF

Key Features:

• Integrated Power Switch: Combines a high-voltage MOSFET, controller, and associated circuitry into a single package, reducing the need for external components and simplifying the design.
• Wide Input Voltage Range: Supports an input voltage range of 90V to 265V AC, making it suitable for global use in regions with different mains power standards. 
• High Efficiency: Delivers up to 90% efficiency, minimizing heat generation and maximizing energy conversion in power supplies.
• Low Standby Power: Designed for low standby power consumption, making it ideal for energy-efficient and environmentally friendly designs.
• Protection Features: Includes over-voltage protection, over-temperature protection, and short-circuit protection to enhance system reliability and prevent damage during abnormal conditions.
• Compact Package: Available in a TO-220 package, which is suitable for applications where space is limited.

Applications:

• AC-DC Power Adapters: Commonly used in power adapters and chargers for devices like mobile phones, laptops, and consumer electronics.
• Industrial Power Supplies: Suitable for powering industrial control systems, automation devices, and sensors.
• LED Drivers: Ideal for driving LED lighting systems, providing a stable DC output from an AC input.
• Battery Chargers: Used in applications where efficient charging of batteries (like lithium-ion) is required.

The TOP261EN is a reliable, energy-efficient solution for AC-DC power conversion, offering integrated protection features, high efficiency, and ease of design, making it ideal for a wide range of power supply applications in consumer, industrial, and lighting systems. 

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