TOP244PN

The TOP244PN is a high-performance offline switcher IC (integrated circuit) manufactured by Power Integrations. Offline switchers are widely used in power supply applications where direct connection to the AC mains is required, offering high efficiency and compact designs.

Key Features:

• Integrated Power Switch: The TOP244PN integrates a high-voltage power MOSFET (metal-oxide-semiconductor field-effect transistor) for switching the primary side of the transformer, simplifying the design and reducing external component count.

• Primary Side Regulation (PSR): This IC utilizes primary side regulation, where feedback for output voltage regulation is derived from the primary winding of the transformer, eliminating the need for an optocoupler and associated components.

• Frequency Jittering: Incorporates frequency jittering techniques to reduce electromagnetic interference (EMI), improving system reliability and meeting regulatory standards.

• Auto-Recovery Overload Protection: Features auto-recovery overload protection, which limits the output current during overload conditions and automatically recovers once the fault is removed, enhancing system safety and reliability.

• Wide Input Voltage Range: Supports a wide input voltage range, typically from several volts up to hundreds of volts, making it suitable for universal mains input voltage applications.

• Efficiency and Thermal Management: Designed for high efficiency operation and includes features for thermal management such as over-temperature protection (OTP) and thermal shutdown to prevent overheating.

• Advanced Protection Features: Offers comprehensive protection features including overvoltage protection (OVP), undervoltage lockout (UVLO), and overcurrent protection (OCP) to safeguard the IC and connected components from fault conditions.

• Green Mode Operation: Implements green mode operation to reduce standby power consumption in low-load conditions, contributing to energy efficiency and compliance with energy-saving regulations.

Applications:

• AC-DC Power Supplies: Used in AC-DC power supply applications such as offline adapters, chargers, LED drivers, and auxiliary power supplies for consumer electronics, appliances, lighting, and industrial equipment.

• LED Lighting: Employed in LED lighting applications including LED drivers, ballasts, and lighting control systems for residential, commercial, and industrial lighting solutions.

• White Goods: Found in white goods appliances such as washing machines, refrigerators, air conditioners, and dishwashers for power supply and motor drive applications.

• Industrial Power Systems: Utilized in industrial power systems including motor control, industrial automation, and instrumentation for efficient power conversion and control.

• Telecommunications: Deployed in telecommunications equipment such as base stations, network switches, and routers for power supply and DC-DC conversion applications.