ON Semi Intros Self-Contained NIS6111 Rectifier

ON Semiconductor Corp. (Phoenix, AZ) announced its new NIS6111 self-contained synchronous rectifier, which is a patented, high-speed, high-efficiency, hybrid rectifier that couples a high-speed comparator and MOSFET driver with a power MOSFET to create a diode with the same forward-drop characteristics as a MOSFET.

The low forward drop and fast switching of the NIS6111 improve efficiency and eliminate bulky heatsinks by lowering junction temperatures for secondary rectification in flyback or resonant topology switching power supplies. Because it does not have to be ground referenced, it can easily be used as a simple, two-terminal replacement for lossy rectifiers in switching power supplies. The NIS6111 is capable of blocking up to 24 V and has a typical forward voltage drop of 0.1 V at a forward current of 20 A. Versions that offer 60 V and 100 V blocking will be added to the BERS family later in 2005.

The NIS6111 is offered in a 9 mm x 9 mm QFN package, and is priced at $2.99 per unit in 10,000-unit quantities. Demo boards are available now.