Power Integrations

TOP247Y

TOP247Y Description

The TOP247Y from Power Integrations is a high-performance offline switching IC designed for flyback topology applications. This obsolete through-hole-mounted device integrates a 700V breakdown voltage MOSFET, making it suitable for high-power AC/DC conversion up to 165W. With an isolated output and 66.5% duty cycle, it supports efficient power management in demanding environments. The IC operates at a switching frequency range of 66kHz–132kHz, enabling flexible design optimization. Its REACH Unaffected status ensures compliance with environmental regulations, while the TO-220-7C package provides robust thermal performance.

TOP247Y Features

• Integrated 700V MOSFET: Reduces external component count and simplifies design.
• Advanced Protection: Includes current limiting, over-temperature, and over-voltage fault protection for enhanced reliability.
• Frequency Control: Adjustable switching frequency (66kHz–132kHz) optimizes efficiency and EMI performance.
• High Power Handling: Delivers up to 165W, ideal for medium-to-high-power applications.
• Isolated Output: Ensures safety and compliance in offline power supplies.
• Wide Operating Range: Supports universal input voltage (85VAC–265VAC).

TOP247Y Applications

The TOP247Y excels in:

• Industrial Power Supplies: For automation, motor drives, and control systems requiring robust performance.
• Consumer Electronics: High-efficiency adapters, LED drivers, and auxiliary power units.
• Telecom/Networking Equipment: Provides stable power for routers, switches, and base stations.
• Lighting Systems: Suitable for high-brightness LED drivers and ballasts.

Conclusion of TOP247Y

The TOP247Y stands out for its high integration, robust protection features, and wide power range, making it a versatile choice for offline flyback converters. While marked as obsolete, its performance and reliability remain valuable for legacy designs or specific industrial applications. Engineers seeking a cost-effective, high-power solution with minimal external components will find the TOP247Y a compelling option. For newer designs, consider exploring Power Integrations' updated product lines with similar capabilities.