To meet increased power efficiency demands and regulatory standards for desktop PCs, All-in-One PCs and notebook adaptors, Fairchild Semiconductor has developed the FAN6204 secondary-side synchronous rectification (SR) controller that increases power efficiency while integrating more functions.
Using a proprietary linear prediction timing-control technique, not limited to the RDS(ON) of the SR MOSFET, the FAN6204 is suitable for fixed frequency or quasi-resonant (QR) flyback converters and discontinuous or continuous conduction mode (DCM and CCM) operation. This technique includes a simple control method without current-sense circuitry, which provides better noise immunity.
Suited for Flyback Converter in QR, DCM, and CCM Operation
Suited for Forward Freewheeling Rectification
Internal Green Mode for Lower No-Load Power Consumption and Higher Light-Load Efficiency
PWM Frequency Tracking with Secondary-Side Winding Voltage Detection
Ultra-Low VDD Operating Voltage for Various Output Voltage Applications (5V~24V)
Ultra-Low Green Mode Operating Current: 1.1mA Typical
VDD Pin Over-Voltage Protection (OVP)
12V (Typical) Gate Driver Clamp
8-Pin SOP Package
Pricing: $00.57 in 1,000 quantity pieces
Availability: Samples available now; delivery: 8-10 weeks ARO
David Patterson, known for his pioneering research that led to RAID, clusters and more, is part of a team at UC Berkeley that recently made its RISC-V processor architecture an open source hardware offering. We talk with Patterson and one of his colleagues behind the effort about the opportunities they see, what new kinds of designs they hope to enable and what it means for today’s commercial processor giants such as Intel, ARM and Imagination Technologies.