TOP252EN

TOP252EN - TOPSwitch-HX Offline Switcher IC

The TOP252EN from Power Integrations is a high-performance offline switcher IC from the TOPSwitch-HX family, designed for isolated flyback power supply applications up to 21W. This integrated solution combines a 700V power MOSFET, oscillator, high-voltage switched current source, current limit, and thermal shutdown circuitry in a compact eSIP-7C package.

Key Features & Benefits

• High Integration: Reduces component count and simplifies design with integrated MOSFET and control circuitry
• Dual Frequency Operation: 66kHz/132kHz switching frequencies for optimized performance and EMI management
• Comprehensive Protection: Built-in current limiting, over-temperature, and over-voltage protection ensures reliable operation
• Wide Operating Range: -40°C to 150°C junction temperature for demanding industrial and automotive applications
• 78% Maximum Duty Cycle: Enables efficient power conversion in flyback topologies
• RoHS Compliant: Meets environmental standards for global distribution

Typical Applications

• AC-DC power supplies for consumer electronics
• Industrial control and automation systems
• Telecom and networking equipment
• LED lighting drivers
• Auxiliary power supplies
• Battery chargers

Why Choose TOP252EN?

The TOP252EN offers design engineers a proven, cost-effective solution for offline power conversion. With Power Integrations' reputation for quality and reliability, this IC delivers consistent performance across a wide range of operating conditions. The integrated protection features reduce the need for external components while ensuring safe operation under fault conditions.

Full traceability and compliance documentation available. Contact our technical team for design-in support, reference designs, and application notes.

• TOP252EN.pdf