TOP249FN

TOP249FN - High-Performance 250W Flyback Converter IC

The TOP249FN from Power Integrations is a premium TOPSwitch-GX series offline flyback converter IC designed for high-reliability power supply applications up to 250W. This advanced integrated circuit combines a 700V power MOSFET, oscillator, high-voltage switched current source, current limit, and shutdown circuitry onto a single chip.

Key Features & Benefits

• High Power Capability: Supports up to 250W output power for demanding applications
• Integrated Protection: Built-in current limiting, over-temperature, and over-voltage protection ensures system reliability
• Wide Switching Range: 66kHz to 132kHz frequency control for optimized efficiency
• Robust Design: 700V breakdown voltage for excellent margin in universal input designs
• Thermal Performance: Operating temperature range from -40°C to 150°C (TJ)
• Easy Implementation: Minimal external components reduce design complexity and BOM cost

Ideal Applications

Perfect for industrial power supplies, telecommunications equipment, consumer electronics, LED lighting drivers, and any application requiring isolated flyback topology with high efficiency and reliability.

Quality & Compliance

This component is RoHS compliant, meeting international environmental standards. Backed by Power Integrations' reputation for quality and reliability, the TOP249FN is an excellent choice for professional power supply designs requiring long-term availability and consistent performance.

Why Choose TOP249FN?

Engineers and procurement specialists choose the TOP249FN for its proven track record in high-reliability applications, comprehensive protection features, and the design simplicity that comes from Power Integrations' integrated approach. Reduce your time-to-market while ensuring robust, efficient power conversion.

• TOP249FN.pdf