The FSCQ1565RTYDTU by ON Semiconductor is a quasi-resonant PWM controller with an integrated 650V high-voltage SENSEFET, designed for medium-power flyback AC-DC power supplies. Combining control logic and power MOSFET in a single chip, it simplifies circuit design, reduces BOM cost, and meets stringent efficiency and standby power requirements.

Featuring quasi-resonant switching, valley-mode ZVS, and light-load Burst mode, this controller addresses multi-output systems, EMI suppression, and green energy demands. With integrated protection features including UVLO, OLP, OVP, TSD, and AOCP, it ensures reliable and safe operation across consumer electronics, household appliances, LED drivers, and industrial auxiliary power systems.

The FSCQ1565RTYDTU supports up to 210?W output, adaptive frequency modulation, and 20?ms internal soft-start to minimize inrush currents. TO-220F package with enhanced thermal resistance (θJC = 2.0°C/W) enables effective heat dissipation for continuous full-load operation. Its high integration reduces board space and external components, making it cost-effective and platform-friendly for scalable designs.

Leverage FSCQ1565RTYDTU for medium-power AC-DC applications to achieve optimized system architecture, energy compliance, and reliable mass production. WIN SOURCE offers original-stock FSCQ series models, technical documentation, and fast BOM matching to accelerate engineering design and procurement efficiency.