TOP271KG-TL

The TOP271KG-TL is a highly integrated offline switcher IC manufactured by Power Integrations. It is specifically designed for offline flyback power supply applications, offering high efficiency, low standby power consumption, and comprehensive protection features. The TOP271KG-TL integrates various functions required for offline power supplies, simplifying design and reducing component count.

Key Features:

• Offline Flyback Switcher: Designed for use in offline flyback power supply topologies commonly used in AC-DC converters, LED drivers, auxiliary power supplies, and low-power adapters.

• High Integration: Integrates multiple functions into a single IC, including a high-voltage power MOSFET, a current-mode PWM controller, a high-voltage start-up circuit, and various protection features.

• Primary-Side Regulation (PSR): Implements primary-side regulation (PSR), eliminating the need for an optocoupler and secondary-side feedback components, reducing system cost and complexity.

• Low Standby Power Consumption: Features low standby power consumption, enabling compliance with energy efficiency standards and regulations such as ENERGY STAR® and ErP (Energy-related Products) directives.

• Wide Input Voltage Range: Operates over a wide input voltage range, typically from 85V to 265V AC, making it suitable for universal input voltage applications and international mains voltage variations.

• High Efficiency: Offers high efficiency across a wide load range, reducing power losses and improving energy efficiency in power supply applications.

• Comprehensive Protection Features: Incorporates comprehensive protection features such as overvoltage protection (OVP), overcurrent protection (OCP), over-temperature protection (OTP), and auto-restart protection (ARP), ensuring reliable and safe operation under fault conditions.

• Frequency Jittering: Utilizes frequency jittering for reducing electromagnetic interference (EMI) emissions, enabling compliance with EMC (electromagnetic compatibility) standards and regulations.

• Adjustable Output Voltage: Provides flexibility with adjustable output voltage and current limiting, allowing for customization to meet specific application requirements.

Applications:

• AC-DC Converters: Used in AC-DC power supplies for applications such as consumer electronics, household appliances, industrial equipment, and lighting fixtures.

• LED Drivers: Integrated into LED driver circuits for powering LED lighting systems in residential, commercial, and automotive applications, offering efficient and dimmable LED illumination.

• Auxiliary Power Supplies: Deployed in auxiliary power supplies for providing standby power to auxiliary circuits, control circuits, and communication interfaces in electronic devices and systems.

• Low-Power Adapters: Integrated into low-power adapters for charging mobile phones, tablets, laptops, and other portable electronic devices, offering compact size, high efficiency, and fast charging capabilities.

• Battery Chargers: Used in battery charger circuits for charging rechargeable batteries in portable devices, power tools, electric vehicles, and energy storage systems.

• Home Automation: Integrated into home automation systems for controlling and powering smart home devices, sensors, actuators, and communication modules.

• Industrial Automation: Deployed in industrial automation systems for powering control systems, motor drives, sensors, and actuators in manufacturing, process control, and robotics applications.

• Renewable Energy: Utilized in renewable energy systems such as solar inverters and wind turbine converters for converting DC power from renewable sources into AC power for grid connection or off-grid applications.