Design News is part of the Informa Markets Division of Informa PLC

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them. Informa PLC's registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.

Fairchild Semiconductor Corp.'s FSEZ1307

Fairchild Semiconductor Corp.'s FSEZ1307

The FSEZ1307 is a third-generation Primary Side Regulation (PSR) PWM controller combination power MOSFET providing several features to enhance the performance of low-power flyback converters. The proprietary TRUECURRENTTM topology, enables precise CC regulation and simplified circuit design for battery-charger applications. Using the FSEZ1307 results in a lower cost and lighter charger compared to a conventional design or a linear transformer. To minimize standby power consumption, the proprietary green mode provides off-time modulation to linearly decrease PWM frequency under light-load conditions. Green mode assists the power supply in meeting power conservation requirements. By using the FSEZ1307, a charger can be implemented with few external components and minimized cost. In charger applications, designers have been challenged to lower standby power and achieve higher efficiency, all while reducing the form factor of their designs. Currently in these applications, RCC or other IC solutions are used, with varying degrees of success. With the broadest portfolio of PSR PWM Controllers in the industry, including the FSEZ1307 PSR with High Voltage (HV) startup and integrated MOSFET, Fairchild can simplify designs, save board space and meet today's demands for power savings.

For more information:

Hide comments


  • Allowed HTML tags: <em> <strong> <blockquote> <br> <p>

Plain text

  • No HTML tags allowed.
  • Web page addresses and e-mail addresses turn into links automatically.
  • Lines and paragraphs break automatically.